Fatigue Resistance of Laminated and Non-laminated TRIP-maraging Steels: Crack Roughness vs Tensile Strength
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Author(s)
Zhang, Zhao
Koyama, Motomichi
Wang, Meimei
Tasan, Cemal
Noguchi, Hiroshi
Date Issued
January 2019
Journal
Metallurgical and Materials Transactions A
Publisher
Springer Science and Business Media LLC
Citation
Zhang, Zhao et al. "Fatigue Resistance of Laminated and Non-laminated TRIP-maraging Steels: Crack Roughness vs Tensile Strength." Metallurgical and Materials Transactions A 50, 3 (January 2019): 1142–1145 © 2019 The Minerals, Metals & Materials Society and ASM International
Version
Author's final manuscript
Abstract
Pre-cold-rolling before annealing in transformation-induced plasticity (TRIP) maraging steels changes the microstructural morphology from lamellar to granular, increasing the tensile strength. However, fatigue tests of plain specimens at ambient temperature and the stress ratio − 1 show that increased strength does not improve the fatigue strength compared to laminated TRIP-maraging steel, irrespective of stress amplitude. The disappearance of fatigue crack roughness suppresses the improvement in fatigue resistance with increasing strength.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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DOI of Published Version
https://doi.org/10.1007/s11661-018-5081-6
