电焊机2017，Vol.47Issue(12)：13-16,4.DOI:10.7512/j.issn.1001-2303.2017.12.03
铝/钢多层多道耗材摩擦焊接头组织性能研究
Study on microstructure and properties of multi-pass friction surfacing joint of aluminum/steel
摘要
Abstract
Multi-pass welding of 2A12 aluminum and Q235 low carbon steel was realized by friction surfacing.The result showed that multi layer and multi-channel welded joints with good surface forming and no internal defects can be obtained by friction welding.Under the thermal cycle of welding,the second phase particles gathered and grew up,and the aggregation and growth of the second phase particles of the first surfacing layer is more obvious.The hardness of the welding layer is higher than that of the first welding layer.The joint shear strength is up to 130.3 MPa which is 63％ of the 2A12 aluminum alloy.The joint is broken on the aluminum alloy side,and the fracture mode is ductile fracture.关键词
耗材摩擦焊/多层多道焊/热循环/第二相颗粒Key words
friction surfacing/multi-pass welding/thermal cycling/second phase particle分类
矿业与冶金引用本文复制引用
王春桂,赵运强,董春林,李继忠..铝/钢多层多道耗材摩擦焊接头组织性能研究[J].电焊机,2017,47(12):13-16,4.基金项目
广东省省级科技计划项目(2015B090922011) （2015B090922011）
广东省现代焊接技术重点实验室项目(2012A061400011) （2012A061400011）
