Low-Cycle Fatigue of SUS 304 Stainless Steel under TwoStep Loading (Effect of Prefatigue Damage on Microcrack Growth Rate)

Yoshihiro Fukushima; Shoji Harada; Yoshiaki Akiniwa; Hiroshi Sawada

doi:10.1299/kikaia.60.2194

Low-Cycle Fatigue of SUS 304 Stainless Steel under TwoStep Loading (Effect of Prefatigue Damage on Microcrack Growth Rate)

Yoshihiro Fukushima, Shoji Harada, Yoshiaki Akiniwa, Hiroshi Sawada

Strength of materials

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

Abstract

Two-step loading LCF tests were conducted on a cyclic hardening SUS 304 stainless steel to examine the effect of prefatigue damage on the subsequent crack growth rate after switching the strain level. The effect of prefatigue damage yielded overshooting and undershooting of stress amplitude in comparison with single strain cycling and subsequently caused acceleration and retardation of the microcrack growth rate. Those trends were reversed depending on the combination of the level of the first and the second strain amplitude. Martensitic transformation measured by the X-ray diffraction method revealed that increasing strain amplitude promotes the transformation and results in acceleration of microcrack growth.

Original language	English
Pages (from-to)	2194-2199
Number of pages	6
Journal	Transactions of the Japan Society of Mechanical Engineers Series A
Volume	60
Issue number	578
DOIs	https://doi.org/10.1299/kikaia.60.2194
Publication status	Published - 1994

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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Low-Cycle Fatigue of SUS 304 Stainless Steel under TwoStep Loading (Effect of Prefatigue Damage on Microcrack Growth Rate). / Fukushima, Yoshihiro; Harada, Shoji; Akiniwa, Yoshiaki; Sawada, Hiroshi.

In: Transactions of the Japan Society of Mechanical Engineers Series A, Vol. 60, No. 578, 1994, p. 2194-2199.

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

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