Fatigue Resistance of Laminated and Non-laminated TRIP-maraging Steels: Crack Roughness vs Tensile Strength

Zhao Zhang; Motomichi Koyama; Meimei Wang; Cemal Cem Tasan; Hiroshi Noguchi

doi:10.1007/s11661-018-5081-6

Fatigue Resistance of Laminated and Non-laminated TRIP-maraging Steels: Crack Roughness vs Tensile Strength

Zhao Zhang, Motomichi Koyama, Meimei Wang, Cemal Cem Tasan, Hiroshi Noguchi

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

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.

Original language	English
Pages (from-to)	1142-1145
Number of pages	4
Journal	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume	50
Issue number	3
DOIs	https://doi.org/10.1007/s11661-018-5081-6
Publication status	Published - 2019 Mar 15
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys

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10.1007/s11661-018-5081-6

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Fatigue Resistance of Laminated and Non-laminated TRIP-maraging Steels : Crack Roughness vs Tensile Strength. / Zhang, Zhao; Koyama, Motomichi; Wang, Meimei; Tasan, Cemal Cem; Noguchi, Hiroshi.

In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 50, No. 3, 15.03.2019, p. 1142-1145.

Research output: Contribution to journal › Article › peer-review

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