Evaluation of Metal-Active Gas Double-Sided Double-Power Arc Welded Joints of High-Strength Low-Alloy Steel

被引：0
作者：
Y. X. Chen
C. D. Yang
X. J. Wang
H. B. Chen
机构：
[1] Hohai University,School of Mechanical and Electrical Engineering
[2] Shanghai Jiao Tong University,Intelligentized Robotic Welding Technology Laboratory, School of Materials Science and Engineering
[3] Jiangsu University of Science and Technology,undefined
来源：
Strength of Materials | 2015年 / 47卷
关键词：
high-strength low-alloy steel; double-sided double arc welding; multilayer welding; mechanical properties;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
High-strength low-alloy steel 50 mm thick is well joined by metal-active gas double-sided double-power arc welding, which does not require preheating, postheating, and back chipping. Mechanical properties of the weld seam and base metal were investigated. Results of the tensile test indicate that the strength of the weld seam is about 862.73 MPa and its average elongation is 20.74%. The hardness of the base metal and weld zone is 299 and 361 HV, respectively. The maximum hardness (395 HV) is observed in the heat-affected zone. The average toughness of the face and root sides of the weld center is 75 and 71 J, respectively.
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页码：164 / 169
页数：5
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