Impact Factor: 3.5

Zeitschrift

Materials Testing

MATERIALPRÜFUNG MATERIALS – COMPONENTS – TECHNOLOGY – APPLICATION

Editor-in-Chief: Thomas Böllinghaus

Sprache: Englisch

Erstveröffentlichung: 1. Januar 1959

Erscheinungsweise: 12 Hefte pro Jahr

Neuestes Heft anzeigen

Veröffentlicht von

Veröffentlichen auch Sie bei De Gruyter Brill

Manuskript einreichen Informationen für Autor*innen

Über diese Zeitschrift

Materials Testing is a SCI-listed English language journal dealing with all aspects of material and component testing with a special focus on transfer between laboratory research into industrial application. The journal provides first-hand information on non-destructive, destructive, optical, physical and chemical test procedures. It contains exclusive articles which are peer-reviewed applying respectively high international quality criterions.
All articles are subject to thorough, independent peer review.

Complete Archive Access

As of 2026, all De Gruyter journal subscriptions include access to every issue, from Volume 1, Issue 1 through to today, meaning subscribers can access even more research at no additional cost.

Open Access
Ballistic performance of multi-layered armor combinations under 7.62 × 51 mm FMJ bullet impact

23. Januar 2026

Mehmet Özer, Kaan Ferikel, Fatih Balıkoğlu, Tayfur Kerem Demircioğlu, İbrahim Kutay Yilmazçoban, Can Çivi

PDF downloaden

This work performed a nonlinear numerical analysis of Armox 500T and Hardox 450 armor steels, Kevlar 29/epoxy laminate, and aluminum honeycomb materials under ballistic conditions, validating the results via experimental data. The ballistic performance of 20 distinct armor configurations was investigated, including monolithic steel, steel-composite, and steel-composite-honeycomb panels produced by various material arrangements. Ballistics tests were conducted using 7.62 × 51 mm full metal jacket bullets with a muzzle velocity of 838 ± 15 m s −1 under the NIJ 0108.01 III protection level standard. The effect of Kevlar29/epoxy layer thickness in multi-layered panels was examined extensively. The results showed that the ballistic performance of the composite armors was significantly improved due to the combination of monolithic steel plates with Kevlar 29/epoxy and aluminum honeycomb layers. Steel-Kevlar 29/epoxy and steel-Kevlar 29/epoxy-honeycomb multi-layered plates provide identical ballistic protection to monolithic steel counterparts while being 51 wt.% and 57 wt.% lighter than monolithic steel armor. Comprehensive finite element simulations of the ballistic impact events were conducted to elucidate the phenomena of defeat and penetration with greater precision.
Open Access
Structural optimization of aircraft components using chaotic pangolin optimizer

20. Februar 2026

Sadiq M. Sait, Pranav Mehta, Betül Sultan Yıldız, Ali Rıza Yıldız

PDF downloaden

This study introduces an enhanced chaotic pangolin optimizer (MCPO), a nature-inspired metaheuristic algorithm integrated with chaotic maps to solve complex constrained and multimodal engineering design problems. The MCPO simulates the luring and predation behavior of the pangolin in a two-stage framework, enhanced with chaos-based dynamics to improve the balance between exploration and exploitation. Aircraft components and systems are designed and optimized to be lightweight and high-load-carrying. Accordingly, the aircraft component attached to the wing is optimized for stress-carrying capacity and weight. The stress distribution and volume reduction are studied to maintain the system’s overall dynamics and balance. The MCPO achieved effective results in terms of the component’s overall weight and cumulative stresses. The MCPO realized a 1997 g weight of the component, which was 8.6 %, 8.5 %, and 7.8 % lower than the Ship rescue algorithm, Hiking algorithm, and Starfish algorithm, respectively. Furthermore, the weight of 585 g (from 2,582 g to 1,997 g) is reduced compared to the initial design. These results affirm the algorithm’s robustness, precision, and versatility across diverse real-world design domains.
Open Access
Effect of austenitizing heat treatment on microhardness and corrosion resistance of 1.4116 martensitic stainless steel

23. Januar 2026

Meryem Altay, Hakan Aydın, Enes Pirge

PDF downloaden

Martensitic stainless steels are utilized in applications requiring high hardness, low wear, and elevated corrosion resistance. Owing to their high alloying element content, they can be hardened through heat treatment. To achieve the desired mechanical properties and corrosion resistance, heat treatment parameters must be appropriately selected; the ratios of martensite, carbide, and retained austenite in the microstructure should be balanced. In this study, temperature and time parameters in the austenitizing heat treatment of 1.4116 (X50CrMoV15) martensitic stainless steel, commonly used in the knife manufacturing industry, were experimentally investigated to obtain an optimal microstructure, maximum hardness, and high corrosion resistance. Temperature values of 1,000 °C, 1,020 °C, 1,040 °C, 1,080 °C, 1,100 °C, and 1,120 °C, as well as durations of 180 s, 210 s, and 260 s, were examined. At lower temperatures, insufficient hardness was achieved due to incomplete austenite transformation and partial dissolution of carbides. At higher temperatures, grain coarsening and retained austenite formation led to a decrease in hardness. At the optimal temperature of 1,080 °C, significant carbide dissolution occurred, complete austenite transformation was achieved, and high-carbon martensite was formed, resulting in maximum hardness. In the time-based experiments, an increase in duration led to a reduction in retained austenite in the microstructure and an increase in hardness. From a corrosion resistance perspective, samples with higher hardness exhibited lower corrosion resistance; however, with increasing duration, corrosion resistance improved due to the activation of diffusion mechanisms.
Open Access
Innovative static force model for pneumatic artificial muscles: nonlinear behavior analysis and validation

2. Februar 2026

Muhammed Ömer İbiş, Sedat İriç, Akin Oguz Kapti

PDF downloaden

This study presents an innovative approach to obtain the tensile force produced by pneumatic artificial muscles (PAMs) exhibiting nonlinear behavior as a function of pressure and muscle length. The static force model, which has an essential place in controlling and understanding the behavior of PAM, is obtained by considering the change of the fiber-winding angle, the change of the internal air volume, and the potential energy of the bladder. Within the scope of this study, an original experimental setup was designed and manufactured to experimentally determine the tensile force produced by PAM depending on the applied air pressure and contraction rate. The effectiveness of the static force model is compared with experimental data for four artificial muscles: Festo DMSP-10-100, DMSP-10-150, DMSP-20-200, and DMSP-20-300. It is understood that the deviation rate of the force characteristic model results from the experimental results was less than 2 % for 20 mm diameter PAMs and less than 4 % for 10 mm diameter PAMs.
Erfordert eine Authentifizierung Nicht lizenziert
Lizenziert

Effects of graphene oxide content on corrosion resistance and mechanical performance of zinc-rich epoxy coatings under different corrosive environments

9. Februar 2026

Hua Zhang, Yubin Fu, Jiakun Lu, Xiao Chen

PDF downloaden

Steel structures exposed to harsh marine environments and intense ultraviolet (UV) radiation frequently encounter corrosion challenges. In this paper, five zinc-rich epoxy coating/steel substrate specimens with varying graphene oxide (GO) contents (0, 0.1, 0.3, 0.5, and 0.7 wt.%) were designed to evaluate their corrosion resistance and mechanical performance under dry-wet cycling (DWC) and UV dry-wet cycling coupling (UVDWC) conditions. Surface morphology was initially characterized using electron microscopy, while scanning electron microscopy (SEM) provided microstructural analysis of coating porosity. The corrosion protection capability was assessed through open circuit potential (OCP) measurements and electrochemical impedance spectroscopy (EIS). Mechanical evaluation consisted of three-point bending tests for elastic modulus determination and tensile testing combined with digital image correlation (DIC) to characterize interfacial bonding properties through fracture strength, fracture toughness, and interfacial shear strength analyses. The results demonstrated that the enhancement effect of GO on both corrosion resistance and mechanical properties of the coating/steel substrate system initially increased and then decreased with increasing GO content. The optimal performance was achieved at 0.3 wt.% GO content, where the composite system exhibited maximum corrosion resistance and mechanical properties. However, it was found that exposure to UV radiation compromised the enhancement effect of GO, indicating that environmental conditions may influence its enhancement efficacy.
Erfordert eine Authentifizierung Nicht lizenziert
Lizenziert

Limiting surface pressures for preloaded bolted connections made of duplex stainless steel

16. Februar 2026

Lukas Ehrhardt, Natalie Stranghöner

PDF downloaden

Preloading of bolting assemblies in bolted connections yields to compressive stresses in the clamped package and might yield to plastic deformations of the surface of the clamped package under the bolt head and nut or the washers depending on the level of preloading. These compressive stresses can become excessive, leading to time-dependent plastic flow (creep) and herewith also to preload losses. High preload losses should be limited in preloaded slip-resistant and/or fatigue-loaded connections in which the preload is decisive for the load-bearing capacity of the connection. For this purpose, the German guideline VDI 2230-1 defines limiting surface pressures for several metal materials, e. g. carbon steel and austenitic stainless steel, for application in mechanical engineering. However, limiting surface pressures for duplex stainless steels are missing. To close this lack of knowledge, continuous pressure tests were carried out to determine limiting surface pressures p G,s for (lean) duplex and austenitic stainless steel resulting in values of, 591 MPa for 1.4404, 925 MPa for 1.4162, 865 MPa for 1.4362, 1,066 MPa for 1.4410 and 980 MPa for 1.4462. This contribution aims to give a comprehensive overview of the investigation and its results, which might be implemented in a future revision of VDI 2230-1. Herewith, the scope of VDI 2230-1 could be extended to duplex stainless steel.
Erfordert eine Authentifizierung Nicht lizenziert
Lizenziert

Novel method for determining the efficiency of the GTAW welding process in a S32001 duplex weld

11. Februar 2026

Sandra Chacón-Fernández, José L. Meseguer-Valdenebro, Antonio Portolés García

PDF downloaden

In this paper, the efficiency of the GTAW process is assessed by evaluating the dilution ratio of the welding process. To determine the degree of dilution and, consequently, the efficiency of the GTAW welding process, the geometry of the weld bead is studied, analyzing the following variables: root dimension, face, perimeter, area, and volume of the weld bead. This work employs an experimental design using the Taguchi methodology in an L4 orthogonal array, where two main factors are defined to weld duplex stainless steel S32001 in flat profiles, 3 mm thick, using the GTAW welding process. This work evaluates the influence of welding parameters on both the process efficiency and the weld bead geometry. Of the two welding parameters studied, amperage and welding speed, amperage has the greatest influence on both the efficiency of the welding process and the geometry of the weld bead, while welding speed has the least influence. The efficiency of the GTAW welding process, as defined by the European standard, is set at a value of 0.6. However, this study determines that for duplex welding, the efficiency of the GTAW process has reached a value of 0.87.
Erfordert eine Authentifizierung Nicht lizenziert
Lizenziert

Distribution of tensile properties of high-speed rail wheels and its correlation with microstructure

18. Februar 2026

Gui-Yong Wang, Dong-Ling Li, Lin-Mao Zhu, Xue-Jing Shen, Hai-Zhou Wang

PDF downloaden

The tensile strength of railway wheels is a crucial mechanical property in the quality assessment and safe service of wheels. Conventional tensile testing imposes strict requirements on specimen size and can only test one specimen in each experiment, hindering its application to the characterization of the tensile strength distribution of train wheels with complex structures. In this study, six-channel mechanical testing of miniature specimens was applied to characterize the tensile properties of high-speed rail wheel rims, enabling analysis of the correlations between micro-zone tensile properties and microstructures of high-speed rail wheels. The results showed that micro-zone tensile strength gradually decreased as the depth of the micro-zone increased from the tread surface to the radial interior. Moreover, both micro-zone tensile strength and plastic extension strength also gradually decreased as the pearlite lamellar spacing and ferrite area fraction increased. Micro-zone tensile strength and plastic extension strength showed good correlations with pearlite lamellar spacing and ferrite area fraction, with polynomial best-fit curves presenting correlation coefficients >0.95. The results of this study could serve as a technical reference for studying the tensile properties of high-speed rail wheel steel.
Erfordert eine Authentifizierung Nicht lizenziert
Lizenziert

Evaluation of 50R steel and carbon epoxy woven FGM composites for monoleaf springs

23. Februar 2026

Hassan S. Hedia, Hassan M. Attar, Mohammed H. Hedia, Mona A. Soliman

PDF downloaden

Functionally graded materials (FGMs) offer a promising approach to enhancing the performance of monoleaf springs by enabling tailored material properties across the component, leading to improved stress distribution, increased strain energy capacity, and optimized strength-to-weight ratios, particularly in vehicle suspension systems where weight reduction is crucial for fuel efficiency and overall performance. The traditional materials like steel are being replaced with composites to achieve significant weight savings, FGMs provide an added advantage by tailoring material properties across the spring’s geometry. This study presents the design and finite element analysis (FEA) of a monoleaf spring composed of an FGM composite that combines carbon epoxy woven prepreg and 50R steel. The analysis evaluates the spatial distribution of von Mises stress and strain energy across the spring thickness using three grading functions: power-law (P-FGM), symmetric power-law (S-P-FGM), and sigmoid (S-FGM). The effect of the power-law exponent k (ranging from 0 to 10) on stress distribution and energy storage was investigated. Results show that increasing k enhances strain energy capacity, with k = 10 yielding the highest energy absorption and acceptance of margin of safety (MOS). Among the models, P-FGM and S-P-FGM outperform S-FGM in terms of structural efficiency and safety. The optimal configuration is an FGM spring with a power-law exponent of k = 10, offering superior strain energy capacity, strength, and reliability, making it well-suited for high-performance applications.
Erfordert eine Authentifizierung Nicht lizenziert
Lizenziert

Comparison of butt and lap joints in TIG welding of a AA2219 aluminum alloy

28. Januar 2026

Saravanan Paranthaman, Jayabalakrishnan Duraivelu, Ravi Samraj, Balachandar Krishnamurthy

PDF downloaden

The work analyzes the effect of weld configuration on the load-bearing performance of TIG-welded joints in AA2219 aluminum alloy. The direct current electrode negative gas tungsten arc welding process was used to fabricate two types of joints, butt and lap, in optimum parameters. To assess the mechanical integrity of the joint, mechanical test was conducted to indicate that the lap joint had a better peak load capacity of 29.8 kN than 22.8 kN of butt joint due to the presence of higher effective load-bearing area. The butt joint showed higher load carrying capacity due to higher hardness in the weld metal and heat-affected zone. Microstructural analysis of both joints under low- and high-resolution imaging revealed differences in grain morphology and precipitate size. Fine and densely distributed precipitates were observed in the butt joint, whereas coarse and larger second-phase particles were observed in the lap joint. This difference may be attributed to variations in the thermal cycle during TIG welding. Fractographic examination also confirmed ductile fracture in the butt joint and quasi-cleavage fracture in the lap joint.
Erfordert eine Authentifizierung Nicht lizenziert
Lizenziert

Deconvolution of eddy current based C-scans of Inconel cast turbine wheels by use of Richardson–Lucy algorithm

9. Februar 2026

Malte Siekmann

PDF downloaden

Eddy current (EC) testing, as a non-destructive method for validation of technical products, is widely used due to its advantages in terms of speed and contactless testing. It gains its importance by the possibility of in-line implementation and online testing. Mostly, the reason for its implementation in production lines might be quality-driven as it can be seen in the detection of surface-open as well as subsurface defects. Limits in the differentiation of small material defects are set by the quality of the EC-signal itself. Addition of noise as well as any influence by convolution of the sensor’s aperture function leads to indistinct signals or blurred C-scans. This paper focuses on the deconvolution of EC-Signals and the characterization of defects in the Inconel alloy IN713LC. The methodology used is the Richardson–Lucy algorithm for image deconvolution.
Erfordert eine Authentifizierung Nicht lizenziert
Lizenziert

Effect of austempering on the mechanical properties of X210Cr12 cold work tool steel with molybdenum addition

9. Februar 2026

Şükrü Öztürk, Sait Özmen Eruslu, Serdar Osman Yılmaz, Tanju Teker

PDF downloaden

The industrial sector is experiencing a rising demand for high-strength alloys in engineering applications. In this study, molybdenum (Mo) strengthened cold work tool steel alloys were produced by sand casting method. Various temperatures, times and cooling environments were selected as heat treatment parameters to determine the effects of heat treatment on the microstructure. The structural changes of heat-treated samples were investigated by scanning electron microscope (SEM) images, energy dispersive spectrometry (EDS), and X-ray diffraction (XRD). Vickers hardness tests were conducted on the samples. The effect of heat treatment parameters on the samples was evaluated by abrasive wear resistance under different loads. In molybdenum-containing samples, heat treatment resulted in a uniform size and dispersion of primary carbides. The wear rate of molybdenum added sample decreased by approximately 30 % by heat treatment.
Erfordert eine Authentifizierung Nicht lizenziert
Lizenziert

Effect of mixing mechanism on the wear behavior of pan-type concrete mixer blades

27. Februar 2026

Jaber Salamat, Bülent Genç, Serdar Osman Yılmaz

PDF downloaden

A total of 320,000 granular particles with a radius of 6 mm were injected into the mixer tank to evaluate the mixing performance of the pan-type concrete mixer and the wear behavior on the mixing blades. Based on the mixing mechanism, the discrete element method was used to numerically calculate the mixing performance in a pan-type concrete mixer and to determine the erosive wear rate on the scraper blades. The Finnie model was used in open-source DEM particle simulation software (LIGGGHTS) for 60 s, representing the duration of concrete production during a single mixing cycle, for wear that could be caused by erosive-abrasive particles. The mixing mechanism was evaluated based on the homogeneity of granular particles and the sweeping action of the mixer’s interior by the rotating mixing blades. The mixing of granular particles was performed using particle interaction models by applying the Hertz–Mindlin contact law, constant directional torque, and simplified Johnson–Kendall–Roberts (SJKR) models. All mixing blades showed a rapid increase in wear at the beginning of the mixing process, followed by a steady change in wear. Erosive wear intensity increased, particularly on the outer and lower edges of the mixing blades.
Erfordert eine Authentifizierung Nicht lizenziert
Lizenziert

Enhanced mechanical and tribological behavior of Al356 hybrid composites reinforced with TiB₂-SiC-Fly ash for automotive applications

9. Februar 2026

Gobinath Velu Kaliyannan, Raja Gunasekaran, Rajasekar Rathanasamy, Suganeswaran Kandasamy, Mohan Kumar Anand Raj, Santhosh Sivaraj, Karvendhan Sellamuthu

PDF downloaden

Demands for composite materials in aero lines and automotive applications has risen, because of their mechanical characteristics and high strength-to-weight ratio. We propose to develop an Al + TSF with low density and high strength for automobile applications. This study investigates the developing the Al356 fabrication with TiB 2 , SiC, and fly ash (TSF) at equal wt.% of 6 %, 12 %, 18 %, and 24 % by stir casting process. The mechanical characteristics like UTS and hardness are tested, along with microstructural behavior is analyzed FESEM and the tribological characteristics of the Al356 were examined by pin on disc tribometer. The UTS and hardness of the AMC increased from 120 MPa to 197 MPa and from 67 MPa to 137 MPa with Al + TSF reinforcement. Various weights (15–60 N), sliding speed (0.55–2.2 m s −1 ) and constant sliding distance of 2,500 m were used to test the tribological performance. It reveals that the optimal combination of Al + TSF (18 %) has less wear and friction at constant load 45 N (0.26 and 0.0099478 mm 3  m −1 ), at constant speed 1.65 m s −1 (0.30 and 0.010056 mm 3  m −1 ). The results indicate that Al356-18 % TSF has enhanced mechanical and tribological performance, placing it as a powerful option for automotive applications.
Erfordert eine Authentifizierung Nicht lizenziert
Lizenziert

Electrochemical impedance spectroscopy of LSM|YSZ|LSM symmetric cells with varying geometric conditions

25. Februar 2026

Taeheun Lim, Kanghee Jo, Jaekwang Lee, Yong-Nam Kim, Heesoo Lee

PDF downloaden

Electrochemical impedance spectroscopy (EIS) is a powerful tool for understanding the oxygen reduction reaction in solid oxide fuel cell cathodes. The cathodic impedance response is strongly affected by experimental variables such as geometric and thermal conditions. The impedance behavior of La 0.8 Sr 0.2 MnO 3-δ (LSM)|yttria-stabilized zirconia (YSZ)|LSM symmetric cells was investigated with electrode diameter and thickness, electrolyte thickness, and reference electrode (RE) configuration. When the electrode diameter increased from 5 mm to 15 mm, the average polarization resistance changed from 12.8056 to 12.6822 Ω cm 2 , while the standard deviation decreased from 0.3877 to 0.1734, suggesting that electrode area mismatch may have influenced the measurement consistency. For the electrode thickness, the most stable impedance response was observed at 20 μm (average: 12.6822 Ω cm 2 ; standard deviation: 0.1734), compared to 30 μm (average: 15.4541 Ω cm 2 ; standard deviation: 1.6038) and 10 μm (average: 14.3421 Ω cm 2 ; standard deviation: 0.7406). These variations are attributed to a decrease in open porosity at higher thickness and structural discontinuity or poor interfacial adhesion at lower thickness. Electrolyte thickness and RE configuration also affected the impedance behavior. The validity of the impedance measurements was confirmed through interlaboratory testing (ILT) with the optimized conditions.
Open Access
Biomimetic topology optimization and structural evaluation of a manual transmission shift fork

13. Februar 2026

Bilal Akyün, Neslihan Özsoy

PDF downloaden

This study evaluates the structural performance of a manual transmission shift fork using ANSYS Workbench and a biomimetic topology optimization framework. A 3D model of the original fork was created in SolidWorks, and its structural behavior was analyzed under different loading conditions with the finite element method (FEM). Stress and deformation results identified weak regions, guiding the redesign process. Inspired by the lattice architecture of Euplectella aspergillum , a biomimetic strategy was adopted to improve both durability and material efficiency. Lattice-based geometries were integrated into the fork design, enhancing stability under multiaxial loading. Topology optimization further redistributed material to achieve weight reduction without compromising strength. Under a 350 N load, the optimized design exhibited von Mises stress of 486.72 MPa compared to 41.18 MPa in the original, remaining below the yield strength of SAE 4140 steel. Total deformation rose from 0.0648 mm to 0.3753 mm but stayed within the elastic range. Fork volume decreased from 142.320 to 88.465 mm 3 , representing a 37.8 % reduction. These results demonstrate that biomimetic topology optimization enhances structural efficiency, reduces manufacturing costs, and supports fuel economy by lowering component weight.
Erfordert eine Authentifizierung Nicht lizenziert
Lizenziert

Joint and strength properties of PTA welded AISI 2205 steel

28. Januar 2026

Tanju Teker, Sinan Aydın

PDF downloaden

Duplex stainless steel, consisting of ferrite and austenite, has attracted wide attention in the past 20 years by exhibiting superior performance with excellent strength and corrosion performance. In this study, 2205 type steel joints were manufactured by plasma arc welding technique. The structure and strength properties of the joints were detected through scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), elemental mapping, tensile test, X-ray diffraction (XRD), and microhardness evaluations. Fractographic analysis was carried out utilizing SEM. The plasma arc welding (PAW) process resulted in a limited heat-affected zone and achieved a high depth-to-width penetration ratio. Moreover, this technique helped maintain the ferrite and austenite phases within the desired ranges. The maximum tensile strength was detected as 455 MPa in S3 Sample. A ductile fracture pattern appeared in the weld metal.
Erfordert eine Authentifizierung Nicht lizenziert
Lizenziert

Influence of machining parameters on metal removal rate and surface roughness of stir casted AA8011 hybrid metal matrix composite

25. Februar 2026

Jones Praveen Jesuraj, Kumaravel Arumugam, Siddharthan Balakrishnan

PDF downloaden

The properties of AA8011 alloy include formability and high corrosion resistance of the alloy which has made it useful in a variety of applications. It is not however suitable in critical applications because it has low load-carrying properties compared to other aluminum alloys. In an attempt to increase the load-carrying capacity, AA8011 alloy is strengthened using titanium oxide and aluminum silicate. This composite is prepared with the help of the stir casting process. The stir-cast AA8011 containing 6 wt.% of Al 2 SiO 5 and 9 wt.% of TiO 2 enhanced its strength to its greatest extent in this investigation. A CNC turning process was also used to further machine the cast aluminum alloy to determine the rate of removal of the metal and surface roughness of the metal matrix composite. Response surface is a statistical method that was applied to optimize the parameters of the process. Surface roughness of 1.162 μm and metal removal rate of 18.024 mm 3  min −1 were achieved with a depth of cut of 0.7 mm, a feed rate of 0.08 mm min −1 and a cutting velocity of 150 m min −1 . The depth of cut, the feed rate, and the machining velocity are the main affecting process parameters as the results of the ANOVA test indicate.
Open Access
Effect of thermal induction cycling on wear and corrosion performance of a X90CrMoV18 (440B) martensitic stainless steel

5. März 2026

Gökhan Eyici, Nurşen Saklakoğlu, Nilay Çömez, Can Çivi

PDF downloaden

Induction heat treatment is a promising alternative to conventional furnace-based processes for martensitic stainless steels due to its fast-processing capability and lower energy demand. In this study, induction heating combined with thermal cyclic treatment was applied to improve the microstructural homogeneity and mechanical performance of the material. The results showed a refined and stable microstructure, reduced wear loss, improved intergranular corrosion resistance, and a more uniform hardness distribution. These improvements were supported by statistical reliability analyses of hardness measurements.
Open Access
Tribological and mechanical characteristics of aluminum–graphene oxide composites synthesized by the ECAS method

25. Februar 2026

Kasim Safa Yakacak, Erhan Duru, Mehmet Uysal, Hatem Akbulut, Serdar Aslan

PDF downloaden

In this study, aluminum–graphene oxide composite materials were fabricated via the powder metallurgy (PM) method. Graphene oxide (GO), synthesized using a modified Hummers method, was coated with a Ni–P layer through the electroless plating technique to establish a uniform and stable interface. Composite powders were prepared by mixing pure aluminum powders with Ni–P–coated GO powders in ethanol using an ultrasonic homogenizer. Pure aluminum and aluminum powders containing 0.5 wt.%, 1 wt.%, and 2 wt.% GO were sintered under pressure using current-assisted electrical sintering (ECAS) technique. Crystalline and microstructures of the composites were analyzed using XRD and FESEM, while Raman spectroscopy was used to evaluate structural defects in the GO sheets. Pure aluminum and GO-reinforced composites were evaluated for microhardness, tensile strength, and wear resistance. Highest hardness (60 HV) was found in the composite with 1 wt.% GO, which also showed the lowest friction coefficient and wear rate, along with highest yield and tensile strength. Mechanical enhancement arises from the combined effect of load transfer to graphene oxide and dispersion strengthening from its uniform distribution. GO addition also refines aluminum grain structure, boosting grain boundary strengthening. Consequently, 1 wt.% GO significantly improves the strength and wear resistance of aluminum composites.

to be implemented...

Heft 0

Heft 68

Heft 67

Heft 66

Heft 65

Heft 64

Heft 63

Heft 62

Heft 61

Heft 60

Heft 59

Heft 58

Heft 57

Heft 56

Heft 55

Heft 54

Heft 53

Heft 52

Heft 51

Heft 50

Heft 49

Heft 48

Heft 47

Heft 46

Heft 45

Heft 44

Heft 43

Heft 42

Heft 41

Heft 40

Heft 39

Heft 38

Heft 37

Heft 36

Heft 35

Heft 34

Heft 33

Heft 32

Heft 31

Heft 30

Heft 29

Heft 28

Heft 27

Heft 26

Heft 25

Heft 24

Heft 23

Heft 22

Heft 21

Heft 20

Heft 19

Heft 18

Heft 17

Heft 16

Heft 15

Heft 14

Heft 13

Heft 12

Heft 11

Heft 10

Heft 9

Heft 8

Heft 7

Heft 6

Heft 5

Heft 4

Heft 3

Heft 2

Heft 1

Journal Impact Factor	3.5	2024, Journal Citation Reports (Clarivate, 2025)
5-year Journal Impact Factor	2.3	2024, Journal Citation Reports (Clarivate, 2025)
Journal Citation Indicator	0.84	2024, Journal Citation Reports (Clarivate, 2025)
CiteScore	4.7	2024, Scopus (Elsevier B.V., 2025)
SCImago Journal Rank	0.571	2024, SJR (Scimago Lab, 2025; Data Source: Scopus)
Source Normalized Impact per Paper	1.032	2024, CWTS Journal Indicators (CWTS B.V., 2025; Data Source: Scopus)

Weitere Informationen über Zeitschriftenmetriken

Manuskripteinreichung

Bitte reichen Sie Ihren Beitrag online über https://mc.manuscriptcentral.com/dgmt ein. Sie werden bei der Einreichung Schritt für Schritt durch das System geführt.

Herausgeber
Prof. Dr.-Ing. Thomas Böllinghaus (MT@degruyter.com)

University of Namibia (UNAM)
Advisor to the Vice Chancellor
Faculty of Agriculture, Engineering & Natural Sciences
340 Mandume Ndemufayo Avenue, Pioneerspark
PB 13301, Windhoek, Namibia

Editorial Board
Suresh Babu, University of Tennessee, Knoxville, Tennessee, USA
Manfred Bacher-Höchst, Robert Bosch GmbH, Stuttgart, Germany
Y. Frank Chen, Pennsylvania State University Harrisburg, Middleton, Pennsylvania, USA
Carl E. Cross, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
Dan Eliezer, Ben Gurion University, Be'er Scheva, Israel
Cagatay Elibol, Turkish-German University, Istanbul, Turkey
Norbert Enzinger, Graz University of Technology, Austria
Petrina Johannes, University of Namibia, Ongwediva, Namibia
Boonrat Lohwongwatana, Chulalongkorn University, Bangkok, Thailand
Paul Kah, University West, Trollhättan, Sweden
Peter Mayr, Technical University of Munich, Munich, Germany
Andreas Neidel, Siemens Energy, Berlin, Germany
Peter Starke, Kaiserslautern University of Applied Sciences, Kaiserslautern, Germany
Tanju Teker, Sivas Cumhuriyet University, Sivas, Türkiye
Frank Walther, TU Dortmund University, Dortmund, Germany

Materials Testing ist in den folgenden Services indiziert:

Astrophysics Data System (ADS)
Baidu Scholar
Chemical Abstracts Service (CAS) - CAplus
Chemical Abstracts Service (CAS) - SciFinder
CNKI Scholar (China National Knowledge Infrastructure)
CNPIEC - cnpLINKer
Dimensions
EBSCO Discovery Service
Google Scholar
J-Gate
Journal Citation Reports/Science Edition
Naver Academic
Naviga (Softweco)
Primo Central (ExLibris)
ReadCube
ScienceON (Korea Institute of Science and Technology Information)
Scilit
SCImago (SJR)
SCOPUS
Semantic Scholar
Sherpa/RoMEO
Summon (ProQuest)
TDNet
WanFang Data
Web of Science - Science Citation Index Expanded
WorldCat (OCLC)
X-MOL
Yewno Discover

Online Submission of Manuscripts

Zeitschriften Informationen

Weitere Informationen

eISSN:

2195-8572

ISSN:

0025-5300

Sprache:

Englisch

Verlag:

De Gruyter

Weitere Informationen

Erstveröffentlichung:

1. Januar 1959

Erscheinungsweise:

12 Hefte pro Jahr

eISSN: 2195-8572

ISSN: 0025-5300

Sicherheits- und Produktressourcen

Herstellerinformationen:
Walter de Gruyter GmbH
Genthiner Straße 13
10785 Berlin
productsafety@degruyterbrill.com

Materials Testing

Über diese Zeitschrift

Zusatzmaterial

Fachgebiete

Materials Testing

Übersicht

Über diese Zeitschrift

Ahead-of-Publication / Just-Accepted

Ausgaben

Metriken

Einreichen

Editorial

Abstracting und Indexing

Zusatzmaterial

Zusatzmaterial

Fachgebiete

Fachgebiete

Externe Links

Bibliographische Daten