Influence of Multi-Pass Welding on the Microstructure Evolution and Corrosion Resistance of a Super Duplex Stainless Steel

被引：10

作者：

Sun, Yangting ^{[1
]}

Wu, Xiayu ^{[1
]}

Wu, Xuan ^{[1
]}

Li, Jin ^{[1
]}

Jiang, Yiming ^{[1
]}

机构：

[1] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2016年 / 11卷 / 11期

基金：

美国国家科学基金会;

关键词：

Duplex stainless steel; Multi-pass welding; Heat-affected zone; corrosion; HEAT-AFFECTED ZONE; SECONDARY AUSTENITE; PITTING CORROSION; TEMPERATURE; BEHAVIOR; PRECIPITATION; KINETICS; COATINGS; ALLOYS;

D O I：

10.20964/2016.11.28

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Different thermal simulations of multi-pass welding were performed on the 2507 duplex stainless steel. The influence of thermal cycles on microstructure and phase ratio was studied. The toughness and pitting resistance of different specimens were investigated through impact energy test and critical pitting temperature test, respectively. The results revealed that the microstructure and performance of 2507 were deteriorated significantly after single-pass welding. While welding pass increased, the restoration effect was observed.

引用

页码：9666 / 9675

页数：10

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