Effect of heat treatment on interface characteristics and mechanical properties of explosive welded Cu/Ti composites

Mehmet Serkan Yıldırım; Yakup Kaya

doi:10.1515/mt-2024-0070

Article

Effect of heat treatment on interface characteristics and mechanical properties of explosive welded Cu/Ti composites

Mehmet Serkan Yıldırım
Mehmet Serkan Yıldırım was born in Sivas. He graduated with a doctoral degree in Manufacturing Engineering from Karabuk University. Currently, he is a lecturer at Gazi University, where he continues his research in the field of welding.
and Yakup Kaya
Yakup Kaya was born in Karabuk. He is an associate professor at the Department of Manufacturing Engineering at Karabuk University. His main research area is welding technology.

Published/Copyright: December 9, 2024

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From the journal Materials Testing Volume 67 Issue 1

Abstract

Copper and titanium plates were used in the studies. Explosive welding (EW) processes were carried out using different explosive rates. The resulting composite plates were heat treated at different temperatures. Various tests were then carried out on samples with and nonheat treatment. In the SEM studies, it was observed that a flat interface shape was formed in the joints where the lowest explosive rate (R = 2.5) was used, but as the explosive rate increased, the interface shape became wavy. It was also found that a thickening diffusion layer formed as the heat treatment temperature increased. As a result of XRD and EDS analyses, it was found that Cu₄Ti, CuTi₂, CuTi, CuTi₃, Cu₃Ti₂, and Cu₄Ti₃ intermetallic phases could be formed because of the high explosive rate and heat treatment applications. Increasing the amount of explosives increased the tensile-shear strength. However, the heat treatment applied reduced the strength values. No defects were detected in the bending tests performed on all heat-treated and nonheat-treated samples.

Keywords: bimetallic composite; different explosive rates; diffusion; intermetallics tensile-shear

Corresponding author: Mehmet Serkan Yıldırım, Technical Sciences Vocational School, Gazi University, 06500, Ankara, Türkiye, E-mail: msyildirim@gazi.edu.tr

About the authors

Mehmet Serkan Yıldırım

Mehmet Serkan Yıldırım was born in Sivas. He graduated with a doctoral degree in Manufacturing Engineering from Karabuk University. Currently, he is a lecturer at Gazi University, where he continues his research in the field of welding.

Yakup Kaya

Yakup Kaya was born in Karabuk. He is an associate professor at the Department of Manufacturing Engineering at Karabuk University. His main research area is welding technology.

Acknowledgments

We wish to thank to the MKE Barutsan Company (Ankara, Turkey) for providing the explosives and facilities for the explosive welding process.

Research ethics: Not applicable.
Informed consent: Not applicable.
Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.
Use of Large Language Models, AI and Machine Learning Tools: None declared.
Conflict of interest: The authors state no conflict of interest.
Research funding: None declared.
Data availability: Not applicable.

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Published Online: 2024-12-09

Published in Print: 2025-01-29

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Articles in the same Issue

https://doi.org/10.1515/mt-2024-0070

Keywords for this article

bimetallic composite; different explosive rates; diffusion; intermetallics tensile-shear