Effects of hydrogenation temperature on room-temperature compressive properties of CMHT-treated Ti6Al4V alloy

Baoguo Yuan ¹Xing Liu ²Jiangfei Du ¹Qiang Chen ³Yuanyuan Wan ⁴Yunliang Xiang ⁴Yan Tang ⁴Xiaoxue Zhang ⁵Zhongyue Huang¹

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作者信息

1. School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, PR China
2. Beijing Aerospace New Trend Machinery and Equipment Co., Ltd., Beijing 100039, PR China
3. School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, PR China;Southwest Technology and Engineering Research Institute, Chongqing400039, PR China
4. Southwest Technology and Engineering Research Institute, Chongqing400039, PR China
5. School of Mechanical Engineering, Anhui Sanlian University, Hefei 230601, PR China
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Abstract

Compression tests were performed at room temperature to investigate the effects of hydrogenation temperature on compressive properties of Ti6Al4V alloy treated by continuous multistep hydrogenation treatment (CMHT).Pressure-composition isotherms and microstructures were also studied.Results showed that the equilibrium hydrogen pressure increased,and the hydrogen absorption rate decreased with the increase of hydrogenation temperature.The amounts of β phase and α''martensite increased first and then decreased when Ti6Al4V alloy was treated by four times CMHT with the increase of hydrogenation temperature.Hydrogenation temperature played a different role on the compressive properties of CMHT-treated Ti6Al4V alloy.The ultimate compression of Ti6Al4V alloy treated by 11 times CMHT at 850 ℃ increased by 83.3 ％ as compared to the as-received Ti6Al4V alloy.The compressive properties of Ti6Al4V alloy were dependent on the amounts of different phases and microstructures when Ti6Al4V alloy was treated by CMHT at different temperatures.

Key words

Titanium alloy/Continuous multistep hydrogenation/treatment/Hydrogenation temperature/Plasticity

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基金项目

This work was financially supported by the National Natural Science Foundation of China(51875157)

University Natural Science Research Project of Anhui Province(KJ2019A0894)

Fundamental Research Funds for the Central Universities(JD2019JGPY0016)

出版年

2021

材料科学技术(英文版)

中国金属学会中国材料研究学会中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCDSCI

影响因子：0.657

ISSN：1005-0302

参考文献量66

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