Evaluation on microstructure and mechanical properties of high-strength low-alloy steel joints with oscillating arc narrow gap GMA welding

被引：0
作者：
W. H. Xu
S. B. Lin
C. L. Fan
C. L. Yang
机构：
[1] Harbin Institute of Technology,State Key Laboratory of Advanced Welding and Joining
来源：
The International Journal of Advanced Manufacturing Technology | 2014年 / 75卷
关键词：
Oscillating arc; Narrow gap GMA welding; HSLA steel; Mechanical properties;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Abstract with the purpose of improving weld joint quality and productivity, the oscillating arc narrow gap gas metal arc (GMA) welding was employed in welding quenched and tempered high-strength low-alloy thick steel. The microstructure and mechanical properties of weld joints were evaluated, namely micro-hardness, tensile strength, and low-temperature impact toughness. The test results indicated that mechanical properties of weld joints with oscillating arc narrow gap GMA welding were excellent and found to meet stipulated requirements. Oscillating arc narrow gap GMA welding is a promising process for welding quenched and tempered HSLA thick steels due to the low energy input and narrow square-butt groove.
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页码：1439 / 1446
页数：7
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