宇航材料工艺2012，Vol.42Issue(3)：24-28,5.
2219铝合金搅拌摩擦焊缝匙孔形缺陷修补技术
Technique for Repairing Keyhole Defect for FSW Joint of 2219 Aluminium Alloy
王国庆 1赵刚 2郝云飞 2陈雪峰 2赵衍华2
作者信息
- 1. 中国运载火箭技术研究院,北京 100076
- 2. 首都航天机械公司,北京 100076
- 折叠
摘要
Abstract
The combined process of solid-state filling+friction stir repaired welding has been used to repair the keyhole defect in 2219 aluminium alloy friction stir weld,and the microstructure and mechanical properties of the repaired joint at the keyhole position have been analyzed. As indicated, the microsturcture of the repaired joint can be divided into three distinctive region: nugget zone ( NZ), thermomechanical affected zone ( TMAZ ) and heat affected zone(HAZ). The nugget zone consists of refined equiaxed grains, and a greater bending deformation occurs in TMAZ. The mechanical properties measurements demonstrate that the tensile strength of the repaired joint can reach 335 MPa,and the ductility can get by 8.0%.关键词
固相填充+搅拌摩擦焊修补工艺/匙孔形缺陷/微观组织/力学性能Key words
Solid-state filling+friction stir welding,Keyhole defect,Microstructure,Mechanical property引用本文复制引用
王国庆,赵刚,郝云飞,陈雪峰,赵衍华..2219铝合金搅拌摩擦焊缝匙孔形缺陷修补技术[J].宇航材料工艺,2012,42(3):24-28,5.
