退火态5083铝合金焊接接头组织与性能分析

Jian LUO,Haigen JIAN, Guoxin XU, Xiangxu SHEN, Kaiyang QIN, Zhiting CHEN,Zhihui DING

Journal of Hunan University of Technology（2017）

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Abstract

采用连续挤压—拉拔—刮削光亮化技术制备的ER5356铝合金焊丝对退火态5083铝合金板材进行MIG焊接,并通过金相、扫描、硬度、拉伸等观察与测试手段对其焊接接头进行试验分析.结果表明:该技术制备的焊丝焊接效果良好,焊缝无裂纹、夹杂等缺陷;焊接接头各区域组织分布均匀,焊缝中心硬度最低,为68 HV,焊接接头抗拉强度为277 MPa,强度系数为92.3%,力学性能较好,完全达到了实际焊接要求和船舶使用需求.

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