冷丝辅助旋转/摇动电弧窄间隙MAG焊缝成形特性及接头组织性能演变机制
Weld Formation Characteristics and the Evolution Mechanisms of Joint Microstructure and Mechanical Properties for Rotating/Swing Arc Narrow Gap MAG Welding Assisted by Cold Wire
冷丝辅助旋转/摇动电弧窄间隙MAG焊缝成形特性及接头组织性能演变机制 |
| 李红, 姜玉清, 曹玉鹏, 王加友, 刘澍彬 |
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Weld Formation Characteristics and the Evolution Mechanisms of Joint Microstructure and Mechanical Properties for Rotating/Swing Arc Narrow Gap MAG Welding Assisted by Cold Wire |
| LI Hong, JIANG Yuqing, CAO Yupeng, WANG Jiayou, LIU Shubin |
| 图11 窄间隙多层焊第三层焊缝及其形成的再热热影响区RHAZ32微观组织的OM像 |
| Fig.11 OM images of microstructure in the 3rd-layer narrow gap weld and its forming reheat-affected zone RHAZ32 (WMC3—current non-reheated weld metal, WMC2—the 2nd-layer of non-reheated weld metal, CGRHAZ32—coarse-grain reheated affected zone, FGRHAZ32—fine-grain reheated affected zone, PFm—polygonal ferrite) (a, a1-a3) RA (Figs.11a1-a3 are magnified views for the local regions in Fig.11a) (b) RA + CW (c) SA (d) SA + CW |
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