材料科学
算盘(建筑)
合金
单晶
压力(语言学)
流离失所(心理学)
结构工程
冶金
复合材料
结晶学
工程类
哲学
心理治疗师
化学
考古
历史
语言学
心理学
作者
Xiang Zhen Xue,Zhixun Wen,Wenxian Li
出处
期刊:Key Engineering Materials
日期:2021-07-06
卷期号:891: 17-22
标识
DOI:10.4028/www.scientific.net/kem.891.17
摘要
The Miss stress, Max.principal strain and Magnitude displacement have important influence on the fatigue life of the Ni-based single crystal super-alloy turbine blades. This work investigated The Miss stress, Max.principal strain and Magnitude displacement of Ni-based single crystal super-alloy specimen with single hole along dangerous path under different working conditions by Abacus. The results show that the initial crack length and loading stresses are larger, the crack growth on the specimen is faster, and then, the fatigue life is the shorter. Moreover, for the different stress ratios, smaller stress ratio can lead to lower fatigue life. The result is significant to design turbine of Ni-based single crystal super-alloy of high accuracy, high reliability and high strength.
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