硬质合金表面钴梯度材料的研究现状  

PRESENT SITUATION OF RESEARCH OF CEMENTED CARBIDE MATERIAL WITH COBALT GRADIANT ON THE SURFACE

作　　者：高道勇[1] 吕海波[1] 钱崇梁[1] 罗序明 李新军[1] 

机构地区：[1]粉末冶金国家重点实验室,长沙410083

出　　处：《粉末冶金材料科学与工程》1997年第4期285-288,共4页Materials Science and Engineering of Powder Metallurgy

基　　金：中国有色金属工业总公司资助

摘　　要：综述了硬质合金表面钴梯度材料设计思想、钴相迁移机理和两种主要制备工艺,即脱碳(氮)和渗碳(氮)工艺,并概述了这类材料的研究开发意义。The idea for designing and the mechanism of cobalt-phase removal of cemented carbidematerial with cobalt gradient on the surface and two chief preparation processes which aredecarburization or denitrification and carburization or nitrizing are described. The magnifi-cence of research and development of this kind of material is summarized.

关 键 词：硬质合金 钴相 梯度 脱碳 渗碳 

分 类 号：TG135.5[一般工业技术—材料科学与工程]