σ-phase morphologies and their effect on mechanical properties of duplex stainless steels

被引：0

作者：

Pohl, Michael ^{[1
]}

Storz, Oliver ^{[1
]}

Glogowski, Thomas ^{[1
]}

机构：

[1] Ruhr Univ Bochum, Inst Werkstoffe Werkstoffprufung, D-44801 Bochum, Germany

来源：

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH | 2008年 / 99卷 / 10期

关键词：

Duplex stainless steel; sigma-phase; chi-phase; Mechanical properties;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The aim of the presented study is to investigate the influence of the different sigma-phase morphologies on the mechanical, wear and corrosive behaviour of the duplex Stainless steel 1.4462 (X2CrNiMoN 22 5 3). Different amounts of sigma-phase were precipitated in tensile. impact strength, wear and corrosion samples by annealing at 750 degrees C. 850 degrees C and 938 degrees C. sigma-phase shows a detrimental influence oil the impact strength and the corrosion behaviour. To a very limited extent it can be Used to slightly raise the strength Under quasi-static load and to improve the wear resistance. Finally, it can be concluded that sigma-phase has more unfavourable influences oil the material's behaviour than advantageous ones. Therefore, it should he avoided in duplex stainless steels.

引用

页码：1163 / 1170

页数：8

共 9 条

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