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VC/Cr3C2对微波烧结超细WC-10Co性能的影响
Effects of VC/Cr3C2 Additions on Microwave Sintering Properties of Ultrafine WC-10Co Hard Alloys
【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。
【Abstract】 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;
【Key words】 microwave sintering; cemented carbide; superfine grain; grain growth inhibitor;
【Key words】 microwave sintering; cemented carbide; superfine grain; grain growth inhibitor;
【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)
- 【文献出处】 武汉理工大学学报 ,Journal of Wuhan University of Technology , 编辑部邮箱 ,2007年12期
- 【分类号】TF124.5
- 【被引频次】10
- 【下载频次】196