摘要
采用表面机械研磨处理技术对Ag-Cu共晶合金进行了表面严重塑性变形处理。采用硬度、透射电镜（TEM）等手段对Ag-Cu共晶合合金结构演变进行了研究。研究表明，采用表面严重塑性变形方法获得了具有纳米表层的Ag-Cu共晶梯度结构，合金变形层厚度为~100μm，最表层纳米晶尺寸~10 nm。同时对其晶粒细化机制进行了讨论。
Surface mechanical attrition treatment （SMAT） was used as a surface severe plastic deformation method for the treating of Ag-Cu eutectic alloy. Microhardness and TEM were conducted to investigate the structure evolution after SMAT. The results showed that a gradient structured Ag-Cu eutectic alloy was obtained via SMAT. The deformation layer was -100μm and the grain size in the top-surface was ~10 nm. In the same time, the grain refinement mechanism was also discussed.
出处
《贵金属》
CAS
CSCD
北大核心
2015年第A01期5-8,共4页
Precious Metals
基金
昆明市三五工程项目.
关键词
材料表面与界面
Ag-Cu共晶合金
表面严重塑性变形
结构演变
surface and interface of materials
Ag-Cu eutectic alloy
surface severe plastic deformation
structure evolution
