钨铜合金的致密化技术  

Densification Technology of W/15Cu Alloy

作　　者：何平[1] 王志法[1] 姜国圣[1] 

机构地区：[1]中南大学材料科学与工程学院,湖南长沙410083

出　　处：《矿冶工程》2007年第5期81-83,共3页Mining and Metallurgical Engineering

摘　　要：分别以添加硬脂酸和化学镀铜的方法对钨粉进行处理,经压型,熔渗后制出W/15Cu合金。用扫描电镜观察材料的显微结构,并测出材料的密度,气密性,研究了钨粉成形性与钨铜合金密度的关系。结果表明,添加硬脂酸和诱导铜没有带入杂质,能改善钨粉的成形性能,可以获得较高致密度的W/15Cu复合材料。W powders were treated by addition of stearic acid or electroless deposition of copper. W/15Cu alloy was obtained by profiling and infiltrating. Microstructures of the alloys were investigated by mean of scanning electron microscope. Density and hermeticity were measured and the relativity of forming property and density was investigated. The results show that adding stearic acid and inducing copper could improve forming property of W powder without introducing any impurity, which resulted in W/15Cu alloys with higher tightness.

关 键 词：粉末冶金 熔渗 钨铜合金 成形性能 弹性后效 致密度 

分 类 号：TG146[一般工业技术—材料科学与工程]