Comparative study on small fatigue crack propagation between Fe-30Mn-3Si-3Al and Fe-23Mn-0.5C twinning-induced plasticity steels: Aspects of non-propagation of small fatigue cracks

Motomichi Koyama; Yusuke Yamamura; Rinqing Che; Takahiro Sawaguchi; Kaneaki Tsuzaki; Hiroshi Noguchi

doi:10.1016/j.ijfatigue.2016.09.003

Comparative study on small fatigue crack propagation between Fe-30Mn-3Si-3Al and Fe-23Mn-0.5C twinning-induced plasticity steels: Aspects of non-propagation of small fatigue cracks

Motomichi Koyama, Yusuke Yamamura, Rinqing Che, Takahiro Sawaguchi, Kaneaki Tsuzaki, Hiroshi Noguchi

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

19 Citations (Scopus)

Abstract

We investigated small fatigue crack propagation in Fe-30Mn-3Si-3Al and Fe-23Mn-0.5C twinning-induced plasticity steels at 30 Hz at ambient temperature by using the replica method with a rotating bending fatigue test machine. The most important difference between the two steels was observed in the non-propagation behavior of small fatigue cracks at the fatigue limits. The Fe-30Mn-3Si-3Al steel did not show fatigue crack non-propagation even at 10⁸ cycles, whereas the Fe-23Mn-0.5C did after 10⁷ cycles, likely because of the occurrence of dynamic strain aging associated with Mn-C coupling.

Original language	English
Pages (from-to)	1-5
Number of pages	5
Journal	International Journal of Fatigue
Volume	94
DOIs	https://doi.org/10.1016/j.ijfatigue.2016.09.003
Publication status	Published - 2017 Jan 1
Externally published	Yes

Keywords

Austenitic steel
Dynamic strain aging
High cycle fatigue
Non-propagation of small fatigue cracks
Optical microscopy

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.2016.09.003

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Comparative study on small fatigue crack propagation between Fe-30Mn-3Si-3Al and Fe-23Mn-0.5C twinning-induced plasticity steels : Aspects of non-propagation of small fatigue cracks. / Koyama, Motomichi; Yamamura, Yusuke; Che, Rinqing; Sawaguchi, Takahiro; Tsuzaki, Kaneaki; Noguchi, Hiroshi.

In: International Journal of Fatigue, Vol. 94, 01.01.2017, p. 1-5.

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

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abstract = "We investigated small fatigue crack propagation in Fe-30Mn-3Si-3Al and Fe-23Mn-0.5C twinning-induced plasticity steels at 30 Hz at ambient temperature by using the replica method with a rotating bending fatigue test machine. The most important difference between the two steels was observed in the non-propagation behavior of small fatigue cracks at the fatigue limits. The Fe-30Mn-3Si-3Al steel did not show fatigue crack non-propagation even at 108 cycles, whereas the Fe-23Mn-0.5C did after 107 cycles, likely because of the occurrence of dynamic strain aging associated with Mn-C coupling.",

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