添加稀土的WC-20(Fe/Co/Ni)硬质合金的研究  

Research of WC-20(Fe/Co/Ni) Cemented Carbide with Rare-Earth Additions

作　　者：孙景[1,2] 王波[1,2] 李宝银[1,2] 杨金辉[1,2] 

机构地区：[1]天津大学 [2]北京科技大学

出　　处：《粉末冶金技术》1998年第4期265-267,共3页Powder Metallurgy Technology

基　　金：天津市自然科学基金

摘　　要：在铁镍部分代钴的基础上，实验添加不同量稀土，结果表明，加入适量稀土可使合金的抗弯强度的提高最大幅度达５．８％；硬度增加０．２～２．０ＨＲＡ。同时，对稀土强化铁镍代钴硬质合金的机理进行了初步探讨。Abstract The cemented carbides in which Co is replaced by Ni,Fe and Re is added are studied.The results shows that its bending strength is improved in some extent,its maximum improving amplitude is 6.9%,its hardness is improved 0.5～2.0HRA.The strengthening mechanism han been discussed.

关 键 词：稀土 硬质合金 钴 添加剂 粉末冶金 

分 类 号：TF125.3[冶金工程—粉末冶金]