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Exfoliation behavior of EN AW 7020 with T6, step aging and ultrasonic impact peening processes

  • Halil Ibrahim Yurdgülü

    Halil Ibrahim Yurdgülü was born in 1989 and is a student in Ataturk University Graduate School of Natural and Applied Sciences Erzurum, Türkiye. His fields of work are fatigue, chemical corrosion, electrochemical corrosion, corrosion fatigue, and welding technology.

         , Recep Sadeler

    Recep Sadeler was born in 1966 and has been working as Professor in the Department of Mechanical Engineering, Ataturk University, Erzurum, Türkiye. His research interests are material science, mechanical, chemical and electrochemical corrosion, biomedical, fatigue, fretting fatigue, corrosion fatigue, and mechanical testing.

     ORCID logo EMAIL logo     and Barış Koç

    Barış Koç was born in 1975 and has been working as a metallurgical and materials as well as a welding engineer in FNSS Defense Systems, Ankara, Türkiye. He has a master’s degree and he works on aluminum materials and welding technology.
Published/Copyright: March 18, 2024
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Materials Testing
From the journal Materials Testing Volume 66 Issue 5

Abstract

In this study the effect of T6 heat treatment, two-step aging treatment and ultrasonic impact peening on the exfoliation corrosion behavior of welded EN AW 7020 was investigated. Exfoliation tests were performed according to the ASTM G34-01 standard. As expected, as a result of the tests, the base material region of all three samples were showed better corrosion resistance than the heat-affected region. Ultrasonic impact peening and two-step aging treatment was observed that improved EXCO sensitivity in the weld area. When sorting was made by considering the resistance to corrosion of the heat affected zone of the samples, it was observed that the best resistance was shown by the sample with two-step aging treatment, and the worst resistance was shown by the sample with T6 heat treatment.

Keywords: EN AW 7020; weldment; T6 heat treatment; two-step aging; ultrasonic impact peening; exfoliation corrosion
Corresponding author: Recep Sadeler, Atatürk Üniversitesi Mühendislik Fakültesi 25200, Erzurum, Türkiye, E-mail:

Funding source: Türkiye Bilimsel ve Teknolojik Araştırma Kurumu

Award Identifier / Grant number: 5210048

Funding source: Atatürk Üniversitesi

Award Identifier / Grant number: 10142

Funding source: FNSS SAVUNMA SİSTEMLERİ A.Ş.

Award Identifier / Grant number: 5210048

About the authors

Halil Ibrahim Yurdgülü

Halil Ibrahim Yurdgülü was born in 1989 and is a student in Ataturk University Graduate School of Natural and Applied Sciences Erzurum, Türkiye. His fields of work are fatigue, chemical corrosion, electrochemical corrosion, corrosion fatigue, and welding technology.

Recep Sadeler

Recep Sadeler was born in 1966 and has been working as Professor in the Department of Mechanical Engineering, Ataturk University, Erzurum, Türkiye. His research interests are material science, mechanical, chemical and electrochemical corrosion, biomedical, fatigue, fretting fatigue, corrosion fatigue, and mechanical testing.

Barış Koç

Barış Koç was born in 1975 and has been working as a metallurgical and materials as well as a welding engineer in FNSS Defense Systems, Ankara, Türkiye. He has a master’s degree and he works on aluminum materials and welding technology.

Acknowledgments

The authors thank Dr. Ahmet Bora Yavuz, Dr. Fikret Yıldırım, MSc. Ahmet Aktürk for extending support in carrying out this research work. The author(s) would like to declare the funding grant received from TUBITAK (5210048), Atatürk University Scientific Research Projects Coordination Unit (ID-10142) and FNSS Savunma Sistemleri A.S. (5210048) for the research, authorship, and/or publication of this article.

  1. Research ethics: Not applicable.

  2. Author contributions: Halil Ibrahim Yurdgülü, Recep Sadeler (corresponding author) and Barış Koç have accepted responsibility for the entire content of this manuscript and approved its submission.

  3. Competing interests: The authors state no conflict of interest.

  4. Research funding: Recep SADELER reports financial support was provided by Scientific and Technological Research Council of Turkey. Recep SADELER reports financial support was provided by Ataturk University. Recep SADELER reports financial support was provided by FNSS Defense Systems Inc.

  5. Data availability: Not applicable.

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Published Online: 2024-03-18
Published in Print: 2024-05-27

© 2024 Walter de Gruyter GmbH, Berlin/Boston

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  2. Design optimization of bellow joints used in liquid propellant rocket engines
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https://doi.org/10.1515/mt-2023-0373
Keywords for this article
EN AW 7020; weldment; T6 heat treatment; two-step aging; ultrasonic impact peening; exfoliation corrosion

Articles in the same Issue

  1. Frontmatter
  2. Design optimization of bellow joints used in liquid propellant rocket engines
  3. Microstructure and mechanical properties of a Ti6Al4V alloy recycled by waste chips vacuum arc melting
  4. High thermal stability effect of vanadium on the binary CuAl base alloy for a novel CuAlV high-temperature shape memory alloy
  5. Microstructure and properties of Co based laser cladded composite coatings
  6. Tribological and electrochemical corrosion behavior of binary Mg–3Zn novel hybrid composites for biodegradable implant applications
  7. Exfoliation behavior of EN AW 7020 with T6, step aging and ultrasonic impact peening processes
  8. Crash performance of a novel bio-inspired energy absorber produced by additive manufacturing using PLA and ABS materials
  9. Acoustic properties of ABS and PLA parts produced by additive manufacturing using different printing parameters
  10. A novel experimental method for measuring the direct tensile strength of concrete
  11. Usage of an improved YOLOv5 for steel surface defect detection
  12. Thermal analyses and weight gain modeling study on Ti–Al – based intermetallic coated Ti6Al4V alloy
  13. Effect of temperature on oxidation during boriding of Ni-Hard 4
  14. Wear behaviour of glass fiber reinforced polyester composites under dry friction and fluid film lubrication
  15. X-ray diffraction and photoelectron spectroscopy analyses of MXene electrode material used in energy storage applications – a review
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