Study on the local corrosion behaviour and mechanism of bogie steel welded joints

被引：18

作者：

Song, Jialiang ^{[1
]}

Li, Zhaoliang ^{[1
]}

Xiao, Kui ^{[1
]}

Luo, Hong ^{[1
]}

Chen, Junhang ^{[1
]}

Yu, Wei ^{[2
]}

Zhang, Xin ^{[3
]}

Dong, Chaofang ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, Natl Engn Res Ctr Efficient Rolling, Beijing 100083, Peoples R China

[3] Testing Ctr USTB Co Ltd, Beijing 100083, Peoples R China

来源：

CORROSION SCIENCE | 2022年 / 208卷

关键词：

Bogie steel; Welded joints; Local corrosion; Microstructure; Surface potential; Galvanic effect; HEAT-AFFECTED ZONE; GALVANIC CORROSION; HYDROGEN EMBRITTLEMENT; PITTING CORROSION; STAINLESS-STEEL; WELDING PROCESS; PIPELINE STEEL; FATIGUE DAMAGE; THERMAL CYCLE; HAZ PART;

D O I：

10.1016/j.corsci.2022.110709

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The local corrosion behaviour and mechanism of welded joints were studied. The results show that the corrosion was caused by the distribution of microstructure defects in different areas of the weld. In the early stage, the potential difference between the base metal and the heat affected zone was less than 50 mV, so there would be no galvanic effect. As the corrosion progressed, the potential difference increased gradually, and the maximum value exceeded 160 mV. During this period, the corrosion rate was mainly affected by galvanic effect, and the order was weld seam > base metal > heat affected zone.

引用

页数：14

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