摘要
采用5种不同TaC含量的超细WC-Co类稀土硬质合金粉体,经过高能球磨72 h,冷压成型后在1 380℃下真空烧结制备成硬质合金试样.重点讨论TaC含量对合金性能和微观结构的影响.结果表明,TaC的加入有利于提高合金的物理性能,并且有晶粒长大抑制作用.
The five ultrafine WC-Co rare cemented carbides powders doped different TaC content were prepared by 72 hours high-energy ball milling.The powder was cold isostatic pressed and vacuum sintered at 1 380 ℃.Effect of the content of TaC on the physical properties and the micrographs of the alloys was discussed with emphasis.The results show that addition of TaC was conducive to the physical properties of the alloys and the TaC could inhibit the grain growth.
出处
《重庆文理学院学报（自然科学版）》
2012年第5期5-8,共4页
Journal of Chongqing University of Arts and Sciences
基金
重庆市自然科学基金计划重点项目(CSTC
2010B)
重庆市教委科学技术研究项目(KJ111209)
关键词
硬质合金
晶粒抑制
晶粒尺寸
cemented carbides
grain growth inhibitors
grain size
