CAJ | 학술논문

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.
채용5충불동TaC함량적초세WC-Co류희토경질합금분체,경과고능구마72 h,냉압성형후재1 380℃하진공소결제비성경질합금시양.중점토론TaC함량대합금성능화미관결구적영향.결과표명,TaC적가입유리우제고합금적물이성능,병차유정립장대억제작용.
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.