【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.更多还原

【Abstract】 For processing Cu-Zr-Cr alloy under 93 K condition, the α solid solution forming twin structure and separating mickle dispersionless micro-granules of Cu₃Zr and Cr₂Zr 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.更多还原