Effect of post-weld heat treatment on the microstructure and mechanical properties of CWW GMAW

被引：0
|
作者：
Ma, Chaofan [1 ]
Wang, Xianglong [1 ]
Ni, Zhengxuan [1 ]
Chen, Zhihong [1 ]
Yang, Zhidong [1 ]
机构：
[1] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Peoples R China
来源：
MODERN PHYSICS LETTERS B | 2025年 / 39卷 / 06期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
CWW; GMAW; heat treatment; microstructure; mechanical property;
D O I：
10.1142/S0217984924420132
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
This study aims to investigate the impact of heat treatment on the microstructure and welding properties of cable-type welding wire gas metal arc welding (GMAW) in shipping steel. In contrast to the untreated weld, the width of the heat-affected zone of the weld after heat treatment decreased. The microstructure of welded joints following heat treatment and air cooling is relatively and finer compared to the grain structure after furnace cooling and without heat treatment. The tensile strength of welded joints decreases compared to that of untreated weld, while it is higher than that of joints after heat treatment and furnace cooling. The impact toughness of heat treatment is higher than that of the weld seam, heat-affected zone, and fusion line without heating treatment, and the impact performance is higher than that of post-weld heat treatment with furnace cooling.
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页数：7
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