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 journalArticle

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 languageEnglish
Pages (from-to)1142-1145
Number of pages4
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume50
Issue number3
DOIs
Publication statusPublished - Mar 15 2019

Fingerprint

maraging steels
Maraging steel
plastic properties
tensile strength
Plasticity
Tensile strength
roughness
cracks
Surface roughness
Fatigue of materials
Cracks
Cold rolling
stress ratio
cold rolling
fatigue tests
Annealing
plains
ambient temperature
annealing
Temperature

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

Cite this

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 journalArticle

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