摘要
研究了传统粉末烧结制备工艺及热－机械循环压缩变形对多孔ＮｉＴｉ形状记忆合金变形和记忆特性的影响结果表明，随烧结温度升高，合金的轴向应变恢复率和弹性应变均显著提高可见，提高烧结温度有利于合金的形状记忆和弹性性能同时发现，少量（二次）热－机械循环压缩变形可显著提高合金的应变恢复率和可逆应变。
The effect of conventional powder sintering and thermal-mechanical compression cyclingon shape memory properties of porous NiTi alloy has been studied. The experimental results show thatthe increase of sintering temperature is favorable to the shape memory and elastic properties of shapememory alloy because the axial strain recovery and elastic strain are improved with increasing sinteringtemperature. Meanwhile, a few thermal-mechanical compression cyclings can further improve the shapememory effect of porous NiTi alloy as the strain recovery and reversible strain are enhanced greatly in thesecond compression cycling.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第4期362-364,共3页
Acta Metallurgica Sinica
基金
中国科学院重点支持项目
