The B2-B19-B19 transformation behaviour in Ti-(45-x)Ni-5Cu-xV alloys
Transformation behaviour, shape memory characteristics and superelasticity of Ti-(45-x)Ni-5Cu-xV (at.％) (x=0.5-2.0) alloys were investigated using different techniques. The B2-B19 transformation occurs when V content is less than 1.0 at.％, above which the B2-B19-B19 transformation occurs. The temperature gap between Ms (the B2-B19 transformation start temperature) and Ms (the B19-B19 transformation start temperature) increased from 8 to 22K with increasing V content from 1.0 to 2.0 at.％. V content dependence of Ms (the B2-B19 transformation start temperature) was 20K at.％-1. One-stage elongation occurred in Ti-44.5Ni-5.0Cu-0.5V and Ti-44.0Ni-5.0Cu-1.0V alloys, while two-stage elongation occurred in Ti-43.5Ni-5.0Cu-1.5V and Ti-43.0Ni-5.0Cu-2.0V alloys. Transformation hysteresis decreased from 16 to 12K with increasing V content from 0.5 to 2.0％. The superelastic recovery ratio increased from 65.0 to 86.1％ with increasing V content from 0.5 to 2.0％.
J Y Choi E S Choi B S Cho Y S Chung T H Nam
Division of Advanced Materials Engineering, i-cube and ERI, Gyeongsang National University, 900 Gajw Department of Civil Engineering, Hongik University, Korea Department of Civil Engineering, Inje University, Korea Department of Civil Engineering, Chung-Ang University, Korea
国际会议
第二届功能原料国际研讨会(The 2rd International Symposium on Functional Materials)
杭州
英文
240-244
2007-05-16（万方平台首次上网日期，不代表论文的发表时间）