VC/Cr_3C_2对微波烧结超细WC-10Co性能的影响  

Effects of VC/Cr_3C_2 Additions on Microwave Sintering Properties of Ultrafine WC-10Co Hard Alloys

作　　者：全峰[1] 周建[1] 刘伟波[1] 刘桂珍[1] 

机构地区：[1]武汉理工大学材料复合新技术国家重点实验室,武汉430070

出　　处：《武汉理工大学学报》2007年第12期49-51,62,共4页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(50472043);国家科技攻关(2003BA328C);教育部优秀青年教师资助计划(EYTP2003-355);教育部留学回国人员科研启动基金(教外司留[2003]406);湖北省自然科学基金(2006ABA316;2006ABA312)

摘　　要：利用微波烧结技术,研究了添加VC/Cr3C2晶粒生长抑制剂对WC-10Co超细硬质合金微观结构及性能的影响。结果表明,添加总量质量分数为0.6%的抑制剂的合金的综合性能最好,过量的抑制剂反而会降低合金性能;并且微波烧结合金不论是否有晶粒长大抑制剂,均能得到均匀的细晶结构。Using the microwave sintering technology, the effects of VC/Cr3C2 additions on the microstructure and properties of the ultrafine WC-10Co alloys were investigated, Experimental results showed that ultrafine WC-10Co alloys with 0.6 % additions had the best properties while the excessive grain growth inhibitors would decrease the properties of alloys. Moreover, with or without additions, WC-10Co alloys with finely uniform grained WC by microwave sintering could be obtained.

关 键 词：微波烧结 硬质合金 超细晶 晶粒生长抑制剂 

分 类 号：TF122.5[冶金工程—粉末冶金]