摘要
对GH132的改型合金GH871涡轮盘件在接近使用条件下的力学性能进行了研究，结果表明，与GH132合金盘件相比较，GH871合金显著提高盘件拉伸强度、持久强度及疲劳蠕变交互作用条件下的断裂寿命，降低稳态蠕变速率，但持久塑性有所下降，裂纹扩展速率较快。
The mechanical properties of superalloy GH871 modified from GH132 (A-286) under nearly service conditions have been studied. The alloy GH871 had a higher tensile rupture strength, a higher rupture life under fatigue-creep mutual effect, and a lower steady-state creep rate at elevated temperature than that the alloy GH132. However the alloy GH871 revealed a lower stress rupture ductility and a faster crack growth rate (CGR) than that of alloy GH132.
出处
《特殊钢》
EI
北大核心
1997年第4期14-16,共3页
Special Steel
关键词
涡轮盘
力学性能
高温合金钢
铁基
Superalloy GH871, Disk for Turbine, Mechanical Property
