Document Type
Article
Publication Date
10-1-2020
Abstract
Fully-reversed cyclic bending tests were conducted on uncoated and Cr-coated 316 stainless steel specimens. At high stresses, the uncoated specimens outperformed the Cr-coated ones, while the trend reversed at low stresses. For Cr-coated specimens subjected to high stress amplitude loading, experimental observations showed crack initiation at the Cr/substrate interface due to shear steps formed from dislocation activities in the substrate—a conclusion supported by accompanying finite element analysis. Interfacial crack initiation was not observed under low stress amplitudes. This difference in fatigue crack initiation mechanisms induced an opposite trend in fatigue life between high and low stress amplitudes.
Publication Source (Journal or Book title)
International Journal of Fatigue
Recommended Citation
Zhang, B., Haghshenas, A., Zhang, X., Zhao, J., Shao, S., Khonsari, M., Guo, S., & Meng, W. (2020). On the failure mechanisms of Cr-coated 316 stainless steel in bending fatigue tests. International Journal of Fatigue, 139 https://doi.org/10.1016/j.ijfatigue.2020.105733