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- Title
Investigation on the Fatigue Behaviors of Maraging Steel at Different Stress Ratios.
- Authors
Wang, Bin; Tian, Zhong Jie; Qin, Jing Yi; Xu, Zi Kuan; Zhang, Peng; Shi, Feng; Gu, Xue Zhong; Li, Xiao Wu; Zhang, Zhe Feng
- Abstract
Herein, the high‐cycle fatigue behaviors of 18Ni maraging steel with different tensile strength in the stress ratio range from 0.1 to 0.5 are investigated, and compared with those at the stress ratio of −1. It is found that the relationship between the fatigue strength at the stress ratios of −1 and 0.1 and tensile strength is nonmonotonic, while the fatigue strength at the stress ratio of 0.5 improves as the tensile strength heightens. The tensile strength corresponding to the optimal fatigue strength state would change with the variation of the stress ratio, which is related to the alteration of key factors affecting the fatigue damage. Moreover, it is found that the Walker equation: σaR = σ−1 ⋅ [(1 − R)/2]β gives reasonable results for the influence of stress ratio on the fatigue strength of 18Ni maraging steel.
- Subjects
MARAGING steel; FATIGUE limit; METAL fatigue; FATIGUE cracks; HIGH cycle fatigue; TENSILE strength
- Publication
Advanced Engineering Materials, 2023, Vol 25, Issue 19, p1
- ISSN
1438-1656
- Publication type
Article
- DOI
10.1002/adem.202300712