摘要
初步研究了先将W丝镀Cu然后再热压的制造W/Cu复合材料的工艺。由于冷拔态W丝在1123K以上强度即下降,且强度下降的程度随加热时间的延长而加剧,因此,W/Cu复合材料的热压温度不宜超过1123K,热压时间以30～60分钟为好。适当的热压工艺参数可以制备出高性能的W/Cu复合材料,其拉伸强度大都可达80～90%的ROM值。
A hot pressing fabrication technology in which copper plated tungsten wires are sintered in the preparation of W/Cu composites has been studied. Owing to the tendency of strength degradation of colddrawn tungsten wires at temperatures above 1123K and an aggravation of strength degradation with prolonged hot pressing, it is suggested fromthe experim ent that hot pressing temperature ought to be limited below 1123K, and that hot pressing time kept within 30-60min. It can also be shown that W/Cu composites having fine properties may be produced by appropriate hot pressing parameters. In most cases, the tensile strength of W/Cu composites may reach 80-90% of the level of the theoretical ROM value.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
1990年第3期92-95,共4页
Acta Armamentarii
