吴建新
,
江伯鸿
,
徐祖耀
金属学报
研究了母相平均晶粒尺寸和有序度对Cu-25.62Zn-3.97Al-0.0018B(wt-％)形状记忆合金热弹性马氏体相变点的影响。从相变热力学出发,得到马氏体相变点和晶粒尺寸的平方根的倒数成线性关系,并且随晶粒尺寸增大,马氏体相变点升高,与电阻法测得的结果符合很好。运用Landau理论,得到马氏体...
关键词:
Cu-Zn-Al合金
,
shape memory alloy
,
thermoelastic martensite
,
grain size
,
ordering degree
LI Yongsen JIN Yongbai YU Ronghai Institute of Metal research
,
Academia Sinica
,
Shenyang
,
China Associate Professor
,
Institute of Metal Research
,
Academia Sinica
,
Shenyang 110015
,
China
金属学报(英文版)
Based on experimental study of the time dependence of the recoverable shape memory effect (SME)of shape memory alloys Ti50Ni50,Ti50Ni48Cu2 and Ti50Ni45Cu5 an empirical re- lationship between recoverable strain energy,U_r,and temperature,T.was derived as: U_r=U_o[1-exp(-mT_R~n)] where m—characteristi...
关键词:
shape memory effect
,
null
,
null
,
null
WANG Mingpu
,
LIU Jinwen Central South University of Technology
,
Changsha
,
China Lecturer
,
Dept.of Materials Science and Engineering
,
Central South University of Technology
,
Changsha 410083
,
China
金属学报(英文版)
The stabilization of thermoelastic martensite in a rapidly solidified Cu-Zn-A1 alloy is be- lieved to be the process of disordering in atomic configuration during which the structure of martensite gradually transforms into N9R(b/a=1/3~(1/2))from M18R.This is dependent upon the intrinsic decompositio...
关键词:
Cu-Zn-Al alloy
,
null
,
null
,
null
N.C.Si
金属学报(英文版)
The effects of heat treatment on the Cu-Zn-Al shape memory alloys with mixed REwere researched with the help of X-ray diffraction and transmission electron micro-scope (TEM).The results show that the shape memory alloys with martensite can beproduced by adding mixed RE and heat treatment processes h...
关键词:
Cu-Zn-Al (RE)
,
null
,
null
,
null
WU Jianxin JIANG Bohong XU Zuyao (T.Y.Hsu) Shanghai Jiaotong University
,
Shanghai
,
China Associate Professor
,
Dept.of Materials Science and Engineering
,
Shanghai Jiaotong University
,
Shanghai
,
China
金属学报(英文版)
The effect of grain size and ordering of the parent phase on the critical points of thermoelastic martensitic transformation in Cu-25.62 Zn-3.97 Al-0.0018 B(wt-%)shape memory alloy has been investigated.Based on the thermodynamics of phase transformation,a linear rela- tionship between the starting ...
关键词:
Cu-Zu-Al
,
null
,
null
,
null
,
null
