Hydrogen-induced room-temperature plasticity in TC4 and TC21 alloys

38th Risø International Symposium on Materials Science

Yuan, Baoguo^1,2 ; Jin, Yongyue^1 ; Hong, Chuanshi^2 ; Zhang, Xiaoxue^3 ; Huang, Xiaoxu^2

School of Materials Science and Engineering, Hefei University of Technology, Hefei

230009, China^1

Section for Materials Science and Advanced Characterization, Department of Wind Energy, Technical University of Denmark, Riso Campus, Roskilde

DK-4000, Denmark^2

School of Mechanical Engineering, Anhui Sanlian University, Hefei

230601, China^3

关键词: Effect of hydrogen;    Hydrogen concentration;    Room-temperature plasticity;    TC21 alloy;    TC4 alloys;    Ultimate compression;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/219/1/012049/pdf
DOI  :  10.1088/1757-899X/219/1/012049

来源: IOP

【 摘 要 】

In order to reveal the effect of hydrogen on the room-temperature plasticity of the titanium alloys TC4 and TC21, compression tests have been carried out at room temperature. Results show that an appropriate amount of hydrogen can improve the room-temperature plasticity of both the TC4 and TC21 alloys. The ultimate compression strain of the TC4 alloy containing a hydrogen concentration of 0.5 wt.% increases by 39% compared to the untreated material. For the TC21 alloy the ultimate compression strain is increased by 33% at a hydrogen concentration of 0.6 wt.%. The main reason for the improvement of hydrogen-induced room-temperature plasticity of the TC4 and TC21 alloys is discussed.