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.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2005年第8期1295-1298,共4页
Rare Metal Materials and Engineering
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
Nickel-base single crystal superalloy
orthogonal arrays experimental design
stress-rupture life
chemical component
