电焊机Issue(6)：103-106,4.DOI:10.7512/j.issn.1001-2303.2014.06.23
异种铝合金搅拌摩擦焊与MIG焊焊缝的腐蚀性能对比
Comparsison of corrosion properties for aluminum alloy friction stir welding and metal inert - gas welding dissimilar weld
摘要
Abstract
In the ambient temperature 0. 2M NaHSO3 and 0. 6M NaCl solution,the corrosion properties for 5083 and 6082 aluminum alloy friction stir welding and metal inert - gas welding dissimilar weld were comparatively investigated by potentiodynamic polarization curve ,electrochemical impedance spectroscopy(EIS)and static weight loss experiment. The corrosion potentials of the FSW dissimi-lar weld were more positive than those of MIG dissimilar weld,meanwhile,the corrosion rate and the corrosion current density were less than those of MIG dissimilar weld and parent metals,Rp(polarization resistance)of the FSW dissimilar weld was larger than that of MIG dissimilar weld and parent metals. Scanning electron microscope(SEM)observation showed that a few shallow pits presented on the surface of the FSW dissimilar weld,however,a large number of deeper pits emerged on the surfaces of MIG dissimilar weld.关键词
搅拌摩擦焊/MIG焊/腐蚀性能/异种焊缝Key words
friction stir welding(FSW)/metal inert - gas welding(MIG)/corrosion properties/dissimilar weld分类
矿业与冶金引用本文复制引用
田龙,赵亚东,何强..异种铝合金搅拌摩擦焊与MIG焊焊缝的腐蚀性能对比[J].电焊机,2014,(6):103-106,4.基金项目
河南省教育厅科学技术重点研究项目（14A460022）；安阳市重大科技计划项目；安阳工学院青年科研基金项目 （）
