摘要
研究了以高活性Ｗ、Ｎｉ、Ｃｕ复合粉末为原料，钨含量为９３％（Ｗｔ）的高比重合金的低温烧结工艺特性、形变与断裂特性、强度与抗腐蚀性能。合金在１２４０℃的温度下进行低温烧结后，抗拉强度可高达９５０ＭＰａ，钨晶粒平均粒径小于５μｍ，具有明显的晶粒尺寸效应，有利于提高合金的强度、密度及其均匀性；合金还具有较好的抗腐蚀性能。
The paper has studied the technological characteristics, deformation, fracture, strengthand corrosion resistence of heavy alloy with high activity composite powder of W,Ni and Cu asraw material and with93% (wt) of tungsten content. After the alloy is sintered at a low temperature of 1240℃,its high tensile strenght as high as 950MPa can be obtained with an average grainsize of tungsten below 5μm which produce obvious grain sire effect,aiding in the improvement ofstrenth,density and homogeneity of alloy and also betterment of the corrosion resistence of alloy.
出处
《粉末冶金技术》
EI
CSCD
北大核心
1996年第1期37-43,共7页
Powder Metallurgy Technology
