Fatigue behavior of Fe-Cr-Ni-based metastable austenitic steels with an identical tensile strength and different solute carbon contents

Takuro Ogawa; Motomichi Koyama; Yuri Nishikura; Kaneaki Tsuzaki; Hiroshi Noguchi

doi:10.2355/tetsutohagane.TETSU-2017-058

Fatigue behavior of Fe-Cr-Ni-based metastable austenitic steels with an identical tensile strength and different solute carbon contents

Takuro Ogawa, Motomichi Koyama, Yuri Nishikura, Kaneaki Tsuzaki, Hiroshi Noguchi

IMR - Materials Design Division

Kyushu University

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

2 Citations (Scopus)

Abstract

Fatigue properties of Fe-19Cr-8Ni-0.05C and Fe-19Cr-8Ni-0.14C steels were investigated using a rotating bending fatigue test machine. Fatigue limit of both of the steels were dominated by critical stress amplitude for crack initiation. Because of the austenite stability, the fatigue limit of the Fe-19Cr-8Ni-0.05C steel was 200 MPa higher than that of the Fe-19Cr-8Ni-0.14C steel. Although occurrence of dynamic strain aging in the Fe-19Cr-8Ni-0.14C was expected to improve fatigue limit, the effect did not appear due to the remarkable increase of phase stability that deteriorates positive effects of transformation-induced plasticity and transformation-induced crack closure.

Original language	English
Pages (from-to)	88-97
Number of pages	10
Journal	Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume	104
Issue number	2
DOIs	https://doi.org/10.2355/tetsutohagane.TETSU-2017-058
Publication status	Published - 2018

Keywords

Austenitic stainless steel
Dynamic strain aging
Fatigue
Phase stability
Solute carbon

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10.2355/tetsutohagane.TETSU-2017-058

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title = "Fatigue behavior of Fe-Cr-Ni-based metastable austenitic steels with an identical tensile strength and different solute carbon contents",

abstract = "Fatigue properties of Fe-19Cr-8Ni-0.05C and Fe-19Cr-8Ni-0.14C steels were investigated using a rotating bending fatigue test machine. Fatigue limit of both of the steels were dominated by critical stress amplitude for crack initiation. Because of the austenite stability, the fatigue limit of the Fe-19Cr-8Ni-0.05C steel was 200 MPa higher than that of the Fe-19Cr-8Ni-0.14C steel. Although occurrence of dynamic strain aging in the Fe-19Cr-8Ni-0.14C was expected to improve fatigue limit, the effect did not appear due to the remarkable increase of phase stability that deteriorates positive effects of transformation-induced plasticity and transformation-induced crack closure.",

keywords = "Austenitic stainless steel, Dynamic strain aging, Fatigue, Phase stability, Solute carbon",

author = "Takuro Ogawa and Motomichi Koyama and Yuri Nishikura and Kaneaki Tsuzaki and Hiroshi Noguchi",

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T1 - Fatigue behavior of Fe-Cr-Ni-based metastable austenitic steels with an identical tensile strength and different solute carbon contents

AU - Ogawa, Takuro

AU - Koyama, Motomichi

AU - Nishikura, Yuri

AU - Tsuzaki, Kaneaki

AU - Noguchi, Hiroshi

PY - 2018

Y1 - 2018

N2 - Fatigue properties of Fe-19Cr-8Ni-0.05C and Fe-19Cr-8Ni-0.14C steels were investigated using a rotating bending fatigue test machine. Fatigue limit of both of the steels were dominated by critical stress amplitude for crack initiation. Because of the austenite stability, the fatigue limit of the Fe-19Cr-8Ni-0.05C steel was 200 MPa higher than that of the Fe-19Cr-8Ni-0.14C steel. Although occurrence of dynamic strain aging in the Fe-19Cr-8Ni-0.14C was expected to improve fatigue limit, the effect did not appear due to the remarkable increase of phase stability that deteriorates positive effects of transformation-induced plasticity and transformation-induced crack closure.

AB - Fatigue properties of Fe-19Cr-8Ni-0.05C and Fe-19Cr-8Ni-0.14C steels were investigated using a rotating bending fatigue test machine. Fatigue limit of both of the steels were dominated by critical stress amplitude for crack initiation. Because of the austenite stability, the fatigue limit of the Fe-19Cr-8Ni-0.05C steel was 200 MPa higher than that of the Fe-19Cr-8Ni-0.14C steel. Although occurrence of dynamic strain aging in the Fe-19Cr-8Ni-0.14C was expected to improve fatigue limit, the effect did not appear due to the remarkable increase of phase stability that deteriorates positive effects of transformation-induced plasticity and transformation-induced crack closure.

KW - Austenitic stainless steel

KW - Dynamic strain aging

KW - Fatigue

KW - Phase stability

KW - Solute carbon

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Fatigue behavior of Fe-Cr-Ni-based metastable austenitic steels with an identical tensile strength and different solute carbon contents

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Keywords

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