EFFECT OF MICROSTRUCTURE ON CORROSION RATE OF UNDERWATER STEEL WELDS

被引：10
|
作者：
MAJID, TM [1 ]
SULTAN, SAR [1 ]
MAHDI, SD [1 ]
JASIM, S [1 ]
机构：
[1] SEPI,BASRAH,IRAQ
来源：
CORROSION | 1990年 / 46卷 / 01期
关键词：
D O I：
10.5006/1.3585064
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This study is concerned with the influence of the changes in the microstructure on corrosion rates of underwater steel welds. Chemical analysis and microstructural studies were performed for weld joints which were made in underwater and open-air conditions. The salt water and the welding electrode wires used were also chemically analyzed. Lower corrosion rates resulted due to occurrence of dendritic, baintic, and martensitic structures in salt water for underwater welds compared to open-air welds. The low corrosion rate occurred because of high molybdenum content and low magnitude of residual surface stresses that develop in underwater welds.
引用
收藏
页码：37 / 42
页数：6
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