超细纳米硬质合金及晶粒长大抑制剂的研究  

Study on ultrafine/nanophase cemented carbides and grain growth inhibitors

作　　者：范景莲[1] 李志希[1] 缪群[1] 黄伯云[1] 吴恩熙[1] 

机构地区：[1]中南大学粉末冶金国家重点实验室,湖南长沙410083

出　　处：《粉末冶金技术》2004年第5期259-265,共7页Powder Metallurgy Technology

基　　金：十五国家"86 3"项目资助;项目编号 :2 0 0 2AA3310 90

摘　　要：超细 纳米WC -Co硬质合金由于其优越的性能而获得更加广泛的应用 ,从而成为近年来各国政府研究学者及厂矿企业十分关注的热门话题。本文综述了国内外在超细 纳米硬质合金及晶粒长大抑制剂方面的研究进展。重点介绍了超细 纳米WC -Co复合粉末的制备技术和新的烧结工艺以及晶粒长大抑制剂的种类、添加方式和作用机理。Ultrafine/nanophase WC-Co cemented carbides has been applied more widely for its super properties, and it had become the hot topic in many research institutes and factories during the last decades. This paper has summarized the research progress of ultrafine/nanophase cemented carbides and grain growth inhibitors at home and abroad. The methods of manufacturing ultrafine/nanophase WC-Co composite powder and the novel process of sintering is introduced in detail. This paper also expounds the grain growth inhibitors kinds, their adding methods and functional mechanisms in detail.

关 键 词：纳米硬质合金 晶粒长大 复合粉末 WC-CO硬质合金 烧结工艺 抑制剂 制备技术 超细 研究 性能 

分 类 号：TF125.3[冶金工程—粉末冶金] TF124.5[冶金工程—冶金物理化学]