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

被引：22

作者：

Koyama, Motomichi ^{[1
]}

Yamamura, Yusuke ^{[1
]}

Che, Rinqing ^{[1
]}

Sawaguchi, Takahiro ^{[2
]}

Tsuzaki, Kaneaki ^{[1
]}

Noguchi, Hiroshi ^{[1
]}

机构：

[1] Kyushu Univ, Nishi Ku, Motooka 744, Fukuoka, Japan

[2] Natl Inst Mat Sci, Sengen 1-2-1, Tsukuba, Ibaraki, Japan

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2017年 / 94卷

关键词：

Non-propagation of small fatigue cracks; Dynamic strain aging; Austenitic steel; High cycle fatigue; Optical microscopy; STACKING-FAULT ENERGY; AUSTENITIC STAINLESS-STEELS; LOW-CARBON STEEL; TWIP STEELS; BEHAVIOR; DISLOCATION; DEFORMATION; EVOLUTION; DAMAGE; ALLOY;

D O I：

10.1016/j.ijfatigue.2016.09.003

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

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. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：1 / 5

页数：5

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