摘要
在93K低温下处理铬锆铜合金,发现α固溶体形成孪晶结构,并析出大量弥散的Cu3Zr和Cr2Zr细小颗粒.孪晶结构的形成依靠堆垛层错的滑移运动而形核和扩展.实践证明,电极合金结构的变化提高了其高温抗塑变能力,减少了粘焊现象,提高了电阻焊电极的焊接性能.
For processing Cu-Zr-Cr alloy under 93 K condition, the α solid solution forming twin structure and separating mickle dispersionless micro-granules of Cu_(3)Zr and Cr_(2)Zr are discovered. The formation of twin structure depends on the slip of stacking fault for nucleating and extending. The results show: the structure changes increase the resistant capability of electrode metal to plastic deformation in high temperature, reduce the phenomenon of cementation by welding, improve the welding performance of resistance welding electrode.
出处
《江南大学学报（自然科学版）》
CAS
2004年第2期173-175,共3页
Joural of Jiangnan University (Natural Science Edition)
关键词
孪晶
金属间化合物
堆垛层错
电极
焊接性能
twin
intermetallics
stacking fault
electrode
welding performance
