材料科学
电子背散射衍射
极限抗拉强度
冶金
变形(气象学)
腐蚀
合金
钛
钛合金
晶体孪晶
纹理(宇宙学)
钝化
扫描电子显微镜
复合材料
微观结构
图层(电子)
人工智能
计算机科学
图像(数学)
作者
Xuyong Zheng,Xu Chen,Yi Cai,Binbin Zhang
出处
期刊:Metals
[MDPI AG]
日期:2023-10-13
卷期号:13 (10): 1740-1740
摘要
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.
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