Chemical composition and heat treatment influence on duplex stainless steels fatigue crack propagation resistance

被引：1
|
作者：
Iacoviello, Francesco [1 ]
Di Cocco, Vittorio [1 ]
Franzese, Ester [1 ]
机构：
[1] Univ Cassino & Lazio Meridionale, DiCeM, Via G Di Biasio 43, I-03043 Cassino, Italy
来源：
STRENGTH FRACTURE AND COMPLEXITY | 2018年 / 11卷 / 2-3期
关键词：
Duplex stainless steel; microstructure; fatigue; heat treatment;
D O I：
10.3233/SFC-180226
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Austeno-ferritic (duplex) stainless steels are prone to age hardening and to embrittle over a wide temperature range depending on their chemical composition and, obviously, on the heat treatment conditions. This is mainly due to precipitation phenomena that occur inside ferritic grain and at ferrite-austenite grain boundaries with a kinetic that is influenced by the steel chemical composition and by the temperature. This work aims to offer a complete view of the influence of the chemical composition on the DSSs fatigue crack propagation, considering different ageing temperatures and different loading conditions.
引用
收藏
页码：253 / 263
页数：11
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