钴、钨和钛对镍基单晶高温合金持久性能的影响  

The Influence of Cobalt, Tungsten, and Titanium on Stress-Rupture Properties of Nickel-Base Single Crystal Superalloy

作　　者：阳大云[1] 张炫[1] 金涛[1] 孙晓峰[1] 管恒荣[1] 胡壮麒[1] 

机构地区：[1]中国科学院金属研究所,辽宁沈阳110016

出　　处：《稀有金属材料与工程》2005年第8期1295-1298,共4页Rare Metal Materials and Engineering

摘　　要：采用正交实验设计方法,探讨了Co,W和Ti及其含量对镍基单晶高温合金持久性能的影响,通过数学分析,对合金成分进行了优化。结果表明:此合金系中Ti含量对持久寿命影响最大,Co次之,W对持久寿命影响最小;当Co,W和Ti含量(ω,%)分别为10,8和0时合金具有较好的持久性能。此合金长期时效后还显示出良好的组织稳定性。The influence of Cobalt, Tungsten, and Titanium on stress-rupture properties of Nickel-base single crystal superalloy has been investigated using orthogonal arrays experimental design. The compositions of alloy have been optimized by mathematical analysis. The results show that Ti content has the most important influence on persistent lives and it is followed by Co, W in the effects. The persistent life is long when the alloy contains 10wt%Co, 8wt%W and 0wt%Ti. This alloy also has high microstructure stability after long-term ageing.

关 键 词：镍基单晶高温合金 正交实验设计 持久寿命 化学成分 

分 类 号：TG132.32[一般工业技术—材料科学与工程]