摘要
采用机械合金化和热压方法制备Ag90Ni10及Ag70Ni30触头合金。机械合金化过程中形成Ni固溶于Ag基体的过饱和固溶体,热压时从银固溶体基体上析出弥散细小的镍强化相。与传统粉末冶金相比,组织更为弥散、细小、均匀。
Ag90Ni10 and Ag70Ni30 alloys were prepared by mechanical alloying (MA) and hot-pressing (HP) techniques. About 10wt% nickel dissolved in silver matrix during MA, which formed over saturation solution. In the HP process, the fine solution precipitates and dispersive nickel particles Were deposited as strengthening phrase. The final microstructure consists of finer and more dispersive nickel particles in silver matrix than that of conventional powder-metallurgy AgNi contacts.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2003年第4期298-300,共3页
Rare Metal Materials and Engineering
基金
国家自然科学基金项目资助(50071043)
