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- Title
Effect of Wear on Alternating Bending Fatigue Life of 20CrNi2Mo Martensitic Steel.
- Authors
Qin, Xinmao; Liu, Xixia; Huang, Huaze; Yin, Cunhong
- Abstract
Bending fatigue failures are commonly related to the wear behavior in an active system. The surface wear and plastic deformation of the tribolayer play crucial roles in the wear–bending fatigue behaviors of steels. In particular, the lamellar structure of martensitic steel leads to its unique wear–bending fatigue behavior. In this work, the wear–bending fatigue testing method and device were introduced to explore the wear–bending fatigue behavior of the martensitic steel. The effect of wear on the alternating bending fatigue life of 20CrNi2Mo martensitic steel was studied under low and high fatigue stress. The influence of wear debris on the fatigue life at two different sliding speeds was also analyzed. The results show that the fatigue life decreased with the wear load increased under high bending stress. Moreover, for systems with nanoscale wear debris on the steel surface, the wear–bending fatigue lifetimes are significantly enhanced compared with large wear debris.
- Publication
Lubricants (2075-4442), 2024, Vol 12, Issue 5, p157
- ISSN
2075-4442
- Publication type
Article
- DOI
10.3390/lubricants12050157