The Effect of Stress Ratios on the Very High Cycle Fatigue Behavior of 9%Cr Turbine Steel at 630 °C

The Effect of Stress Ratios on the Very High Cycle Fatigue Behavior of 9%Cr Turbine Steel at 630 °C

Effects of the stress ratio on the very high cycle fatigue behaviors of 9%Cr turbine steel have been investigated at 630 °C. The experimental results show that the S–N curve has a continuous downward trend and has no fatigue limit with the increasing in the cycles at 630 °C. Meanwhile, according to...

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Bibliographic Details
Main Authors: Quanyi Wang, Yao Chen, Yongjie Liu, Chong Wang, Lang Li, Chao He, Xiufang Gong, Tianjian Wang, Wei Zhang, Qingyuan Wang, Hong Zhang
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Materials
Subjects:
9%Cr turbine steel
very high cycle fatigue
stress intensity factor
stress ratio
high temperature
Online Access:https://www.mdpi.com/1996-1944/13/16/3444

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