TY - JOUR
T1 - Fatigue Resistance of Laminated and Non-laminated TRIP-maraging Steels
T2 - Crack Roughness vs Tensile Strength
AU - Zhang, Zhao
AU - Koyama, Motomichi
AU - Wang, Meimei
AU - Tasan, Cemal Cem
AU - Noguchi, Hiroshi
N1 - Funding Information:
This work was financially supported by JSPS KA-KENHI (JP16H06365, JP17H04956).
Publisher Copyright:
© 2019, The Minerals, Metals & Materials Society and ASM International.
PY - 2019/3/15
Y1 - 2019/3/15
N2 - 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.
AB - 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.
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U2 - 10.1007/s11661-018-5081-6
DO - 10.1007/s11661-018-5081-6
M3 - Article
AN - SCOPUS:85059452633
VL - 50
SP - 1142
EP - 1145
JO - Metallurgical Transactions A (Physical Metallurgy and Materials Science)
JF - Metallurgical Transactions A (Physical Metallurgy and Materials Science)
SN - 1073-5623
IS - 3
ER -