Fatigue properties of austenitic stainless steels with different nitrogen

被引：1
|
作者：
Hattori, N [1 ]
Nishida, S [1 ]
机构：
[1] Saga Univ, Fac Sci & Engn, Saga 8408502, Japan
来源：
ADVANCES IN FRACTURE AND FAILURE PREVENTION, PTS 1 AND 2 | 2004年 / 261-263卷
关键词：
fatigue; austenitic stainless steels; nitrogen content; non-propagating microcracks;
D O I：
10.4028/www.scientific.net/KEM.261-263.1215
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The fatigue properties of austenitic stainless steels become inevitably important when using in structural materials. The authors have performed fatigue tests to investigate the effect of nitrogen content on fatigue properties of typical austenitic stainless steels (SUS304) and two kinds of nitrogen-contained SUS304 (SUS304N and YUS170). The main results obtained in this study are as follows; (1) The knee point in S-N curves exists for SUS304 and SUS304N, but does not exist for YUS170. (2) The fatigue limit of SUS304N is higher than that of SUS304. On the other hand, the fatigue strength by 10 7 cycles of YUS170 is lower than those of SUS304 and SUS304N. (3) For SUS304, the transformation ratio increases with increase in stress amplitude. On the other hand, the transformation ratio of SUS304N is very small and that of YUS170 remains essentially zero.
引用
收藏
页码：1215 / 1220
页数：6
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