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Enhanced strength of (CoFeNiMn)100−xCrx (x = 5, 20, 35 at.%) high entropy alloys via formation of carbide phases produced from industrial-grade raw materials

  • Gökhan Polat

    Dr. Gökhan Polat, born in 1990, received his BS, MSc, and Ph.D. in the Department of Metallurgical and Materials Engineering in 2010, 2013, and 2020, respectively. He works as an Assistant Professor in the Department of Metallurgical and Materials Engineering at İzmir Katip Çelebi University, İzmir, Turkey. His current research interests cover high-entropy alloys, stainless steels, and the characterization of metallic materials.

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Published/Copyright: March 13, 2024
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Materials Testing
From the journal Materials Testing Volume 66 Issue 4

Abstract

(CoFeNiMn)100−xCrx (x = 5, 20, 35 at.%) HEAs were produced using vacuum arc melting followed by suction casting using industrial-grade raw materials and subsequent annealing at 1150 °C for 24 h. The increasing Cr content triggered the formation of the Cr7C3 in the FCC matrix due to the presence of C impurity in the raw materials. The increasing Cr content from 5 to 35 at.% raised the hardness from 206 (±7) to 383 (±4) HV and yield strength from 210 to 350 MPa due to the embedded Cr7C3 phases in the matrix. The HEA consists of 20 at.% Cr was found to be the most promising alloy due to the strength-ductility trade-off with the values of 350 MPa compressive yield strength and 10.7 % strain. The enhanced mechanical properties of the HEAs by using industrial-grade low-cost raw materials could make them more attractive materials for industrial applications.

Keywords: high entropy alloy; cantor; strength; carbide; impurity
Corresponding author: Gökhan Polat, Metallurgical and Materials Engineering, İzmir Katip Çelebi University, Çiğli, İ zmir, 35620, Türkiye; and Metallurgical and Materials Engineering, Necmettin Erbakan University, Meram, Konya, 42090, Türkiye, E-mail:

Funding source: Scientific Research Projects Coordination Unit of Necmettin Erbakan University, Türkiye

Award Identifier / Grant number: 211219003

About the author

Gökhan Polat

Dr. Gökhan Polat, born in 1990, received his BS, MSc, and Ph.D. in the Department of Metallurgical and Materials Engineering in 2010, 2013, and 2020, respectively. He works as an Assistant Professor in the Department of Metallurgical and Materials Engineering at İzmir Katip Çelebi University, İzmir, Turkey. His current research interests cover high-entropy alloys, stainless steels, and the characterization of metallic materials.

Acknowledgments

The author would like to thank the Scientific Research Projects Coordination Unit of Necmettin Erbakan University, Türkiye under project number of 211219003, and the Department of Metallurgical and Materials Engineering, Middle East Technical University for their support in the production of alloys.

  1. Research ethics: Not applicable.

  2. Author contributions: The author has accepted responsibility for the entire content of this manuscript and approved its submission. Gökhan Polat: conceptualization; methodology; investigation; data curation; writing-original draft; writing-review and editing; visualization; project administration.

  3. Competing interests: The author states no conflict of interest.

  4. Research funding: This study was funded by the Scientific Research Projects Coordination Unit of Necmettin Erbakan University, Türkiye, under project number of 211219003.

  5. Data availability: The raw data can be obtained on request from the corresponding author.

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Published Online: 2024-03-13
Published in Print: 2024-04-25

© 2024 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Strain-life behavior of thick-walled nodular cast iron
  3. A novel bearing fault detection approach using a convolutional neural network
  4. Improved Gx40CrNi25-20 grade austenitic stainless steel
  5. Enhanced strength of (CoFeNiMn)100−xCrx (x = 5, 20, 35 at.%) high entropy alloys via formation of carbide phases produced from industrial-grade raw materials
  6. Modeling of thrust force and torque in drilling aluminum 7050
  7. Construction of amidinothiourea crosslinked graphene oxide membrane by multilayer self-assembly for efficient removal of heavy metal ions
  8. Effect of tool rotational speed on friction stir spot welds of AZ31B Mg alloy to AISI 304 stainless steel
  9. A new enhanced mountain gazelle optimizer and artificial neural network for global optimization of mechanical design problems
  10. Effect of particle volume fraction on wear behavior in Al–SiC MMC coated on DIN AlZnMgCu1.5 alloy
  11. Processing, microstructural characterization, and mechanical properties of deep cryogenically treated steels and alloys – overview
  12. Experimental and numerical investigation of patch effect on the bending behavior for hat-shaped carbon fiber composite beams
  13. Influence of water on microstructure and mechanical properties of a friction stir spot welded 7075-T651 Al alloy
  14. Effect of copper powder addition on the product quality of sintered stainless steels
  15. Mechanical and thermal properties of short banana fiber reinforced polyoxymethylene composite materials dependent on alkali treatment
https://doi.org/10.1515/mt-2023-0363
Keywords for this article
high entropy alloy; cantor; strength; carbide; impurity

Articles in the same Issue

  1. Frontmatter
  2. Strain-life behavior of thick-walled nodular cast iron
  3. A novel bearing fault detection approach using a convolutional neural network
  4. Improved Gx40CrNi25-20 grade austenitic stainless steel
  5. Enhanced strength of (CoFeNiMn)100−xCrx (x = 5, 20, 35 at.%) high entropy alloys via formation of carbide phases produced from industrial-grade raw materials
  6. Modeling of thrust force and torque in drilling aluminum 7050
  7. Construction of amidinothiourea crosslinked graphene oxide membrane by multilayer self-assembly for efficient removal of heavy metal ions
  8. Effect of tool rotational speed on friction stir spot welds of AZ31B Mg alloy to AISI 304 stainless steel
  9. A new enhanced mountain gazelle optimizer and artificial neural network for global optimization of mechanical design problems
  10. Effect of particle volume fraction on wear behavior in Al–SiC MMC coated on DIN AlZnMgCu1.5 alloy
  11. Processing, microstructural characterization, and mechanical properties of deep cryogenically treated steels and alloys – overview
  12. Experimental and numerical investigation of patch effect on the bending behavior for hat-shaped carbon fiber composite beams
  13. Influence of water on microstructure and mechanical properties of a friction stir spot welded 7075-T651 Al alloy
  14. Effect of copper powder addition on the product quality of sintered stainless steels
  15. Mechanical and thermal properties of short banana fiber reinforced polyoxymethylene composite materials dependent on alkali treatment
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