Potential resistance to transgranular fatigue crack growth of Fe-C alloy with a supersaturated carbon clarified through FIB micro-notching technique

Bochuan Li; Motomichi Koyama; Eisaku Sakurada; Nobuyuki Yoshimura; Kohsaku Ushioda; Hiroshi Noguchi

doi:10.1016/j.ijfatigue.2016.01.003

Potential resistance to transgranular fatigue crack growth of Fe-C alloy with a supersaturated carbon clarified through FIB micro-notching technique

Bochuan Li, Motomichi Koyama, Eisaku Sakurada, Nobuyuki Yoshimura, Kohsaku Ushioda, Hiroshi Noguchi

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

22 Citations (Scopus)

Abstract

The threshold stress intensity factor range (ΔK_th) of water-quenched Fe-0.017C (wt.%) fully ferritic steel was determined using room-temperature fatigue tests on micro-notched specimens. The experimentally determined ΔK_th was approximately 40.5% higher than conventionally predicted results. This extraordinary resistance to transgranluar fatigue crack propagation likely results from the strain-age hardening.

Original language	English
Pages (from-to)	1-5
Number of pages	5
Journal	International Journal of Fatigue
Volume	87
DOIs	https://doi.org/10.1016/j.ijfatigue.2016.01.003
Publication status	Published - 2016 Jun 1
Externally published	Yes

Keywords

Ferritic steel
Strain-age hardening
Threshold stress intensity factor range
Transgranluar fatigue crack

ASJC Scopus subject areas

Modelling and Simulation
Materials Science(all)
Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1016/j.ijfatigue.2016.01.003

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Potential resistance to transgranular fatigue crack growth of Fe-C alloy with a supersaturated carbon clarified through FIB micro-notching technique. / Li, Bochuan; Koyama, Motomichi; Sakurada, Eisaku; Yoshimura, Nobuyuki; Ushioda, Kohsaku; Noguchi, Hiroshi.

In: International Journal of Fatigue, Vol. 87, 01.06.2016, p. 1-5.

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

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AU - Li, Bochuan

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AU - Sakurada, Eisaku

AU - Yoshimura, Nobuyuki

AU - Ushioda, Kohsaku

AU - Noguchi, Hiroshi

PY - 2016/6/1

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AB - The threshold stress intensity factor range (ΔKth) of water-quenched Fe-0.017C (wt.%) fully ferritic steel was determined using room-temperature fatigue tests on micro-notched specimens. The experimentally determined ΔKth was approximately 40.5% higher than conventionally predicted results. This extraordinary resistance to transgranluar fatigue crack propagation likely results from the strain-age hardening.

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Potential resistance to transgranular fatigue crack growth of Fe-C alloy with a supersaturated carbon clarified through FIB micro-notching technique

Abstract

Keywords

ASJC Scopus subject areas

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