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Volume 13
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10.3390/met13101740
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Article

Effect of Plastic Deformation and Acidic Solution on the Corrosion Behavior of Ti-6Al-4V ELI Titanium Alloy

by
Xuyong Zheng
1,
Chen Xu
1,
Yi Cai
2,* and
Binbin Zhang
1,*
1
College of Mechanical and Electrical Engineering, Wenzhou University, Wenzhou 325035, China
2
TeJi Valve Group Co., Ltd., Wenzhou 325102, China
*
Authors to whom correspondence should be addressed.
Metals 2023, 13(10), 1740; https://doi.org/10.3390/met13101740
Submission received: 17 September 2023 / Revised: 9 October 2023 / Accepted: 10 October 2023 / Published: 13 October 2023
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Abstract

This study investigated the tensile deformation of Ti-6Al-4V ELI titanium alloy and its effect on corrosion performance. The results showed that the structural morphology of the samples’ strain levels of 0%, 5%, and 10% had minimal changes under an optical microscope. Further investigation of grain orientation information was conducted using electron backscatter diffraction (EBSD), revealing that tensile deformation induced grain rotation, resulting in the diversity of originally preferred orientation grains and a decrease in texture strength. A small amount of {10–12}<−1011> extension twinning formed during the tensile deformation process. The electrochemical properties of Ti-6Al-4V ELI samples with different strain levels were evaluated in 3.5% NaCl solution with pH values of 7 and 1.5. The results indicated that both plastic deformation and acidic environments were detrimental to the passivation film on the titanium alloy surface, leading to reduced corrosion resistance.
Keywords: titanium alloys; microstructure; deformation mechanism; corrosion behavior titanium alloys; microstructure; deformation mechanism; corrosion behavior

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MDPI and ACS Style

Zheng, X.; Xu, C.; Cai, Y.; Zhang, B. Effect of Plastic Deformation and Acidic Solution on the Corrosion Behavior of Ti-6Al-4V ELI Titanium Alloy. Metals 2023, 13, 1740. https://doi.org/10.3390/met13101740

AMA Style

Zheng X, Xu C, Cai Y, Zhang B. Effect of Plastic Deformation and Acidic Solution on the Corrosion Behavior of Ti-6Al-4V ELI Titanium Alloy. Metals. 2023; 13(10):1740. https://doi.org/10.3390/met13101740

Chicago/Turabian Style

Zheng, Xuyong, Chen Xu, Yi Cai, and Binbin Zhang. 2023. "Effect of Plastic Deformation and Acidic Solution on the Corrosion Behavior of Ti-6Al-4V ELI Titanium Alloy" Metals 13, no. 10: 1740. https://doi.org/10.3390/met13101740

APA Style

Zheng, X., Xu, C., Cai, Y., & Zhang, B. (2023). Effect of Plastic Deformation and Acidic Solution on the Corrosion Behavior of Ti-6Al-4V ELI Titanium Alloy. Metals, 13(10), 1740. https://doi.org/10.3390/met13101740

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