烧结温度对W/Mo双金属材料显微组织及力学性能的影响  

EFFECT OF SINTERING TEMPERATURE ON MICROSTRUCTURE, MECHANICAL PROPERTIES OF W/MO BIMETAL COMPOSITE MATERIALS

作　　者：吕高鹏[1] 晏小兵[1] 代春[1] 冯红超[1] 

机构地区：[1]宝钛集团有限公司,宝鸡721014

出　　处：《粉末冶金工业》2013年第3期48-51,共4页Powder Metallurgy Industry

摘　　要：本文首先通过粉末冶金技术,采用不同的真空烧结工艺制备出W/Mo双金属材料,然后对其显微组织、密度、硬度和结合状态进行了测试。结果表明:将W粉、Mo粉铺层以485MPa的压力冷压成形后,在1600℃、10-3 Pa真空度下烧结2～4h可以制得满足一定条件的W/Mo双金属材料。该W/Mo双金属材料的性能受烧结温度的影响,烧结温度越高得到的W/Mo双金属的密度、强度越高,结合面越平整。In this paper, W / Mo bimetal composite was prepared by powder metallurgy with different vacuum sintering process, and the microstructure, density, hardness and combina- tion state of the resulted composite were tested. The results showed that, the W/Mo bimetal composites satisfying some certain requirements could be realized by cold pressing of W and Mo powder layers under a pressure of 485 MPa and then sintering at 1600 ℃ in vacuum （10 -3Pa） for 2 - 4 h. Sintering temperature influenced the properties of W/Mo bimetal com- posite. Higher sintering temperature resulted in higher density, bonding strength and smoother joint surface of W/Mo bimetal composite.

关 键 词：钨 钼 复合材料 粉末冶金 烧结温度 

分 类 号：TF124.5[冶金工程—粉末冶金]