摘要
用热重分析仪、X射线衍射仪和拉伸试验研究了退火温度、变形温度对Ti-50.1Ni形状记忆(SME)合金丝的相变、形变的影响。Ti-50.1Ni合金加热氧化过程中温度超过600℃后氧化加剧,故退火温度不宜超过600℃。该合金奥氏体相变开始温度(As)高于室温,室温相为马氏体,呈SME特性。350～600℃退火态Ti-50.1Ni合金在室温下均呈SME。
Effects of annealing and deforming temperatures on the transformation and deformation of Ti-50.1 Ni shal.）e memory allo） have been investigated by means of thermal gravity, X-ray diffraction and tensile test. Oxidation become serious above 600℃in the process of heating for Ti-50.1Ni, therefore, annealing temperature should be below 600℃. Since austenitic transformation start temperatures （As） is above room temperature, the phase at the room temperature is martensilie phase, the Ti-50.1Ni alloy shows shape memory effect （SME）. The SME property can be obtained at room temperature for the Ti-50. I Ni alloy mmealed at 350-600℃.
出处
《金属热处理》
CAS
CSCD
北大核心
2013年第2期52-55,共4页
Heat Treatment of Metals
关键词
Ti-50
1Ni合金
形状记忆合金
相变
形变
Wang Xiaoliang＇＇~ Shaanxi Province Engineering l,aboratory for Aerial Material, Western Superconducting Technologies Co. , l,ld. , Xi＇an Shaanxi 710018, China
2. School of Materials Science and Engineering, Northwestern Polytechnical University, Xi＇a
