宇航材料工艺2018，Vol.48Issue(3)：56-60,5.DOI:10.12044/j.issn.1007-2330.2018.03.012
2219铝合金静止轴肩搅拌摩擦焊接头组织及性能
Microstructure and Properties of 2219 Aluminum Alloy Joint Obtained by Stationary Shoulder Friction Stir Welding
武颖 1李迎 2张玉芝2
作者信息
- 1. 太原理工大学机械工程学院,太原030024
- 2. 首都航天机械有限公司,北京100076
- 折叠
摘要
Abstract
2219C10S aluminum alloy welded joints were obtained by stationary shoulder friction stir welding (SSFSW).The paper presented the typical macroscopic and microstructural characteristics of welded joints,the influences of welding parameters on the forming characteristics and the mechanical properties of welded joints.The results showed that as compared with the traditional friction stir welding (C-FSW),flash and the defects of the weld could be effectively avoided during welding due to the structural characteristics of the stationary shoulder mixing head.With the increase of welding speed,the joint nuclear changed from "bowl" to "waist drum",and the volume decreased,and the welded joint was also specially characterized with the shoulder-affected zone.The microhardness distribution of the welded joints presented a unique " U " shape,and the nuclear was the lowest.With the increase of welding speed which was under 250 mm/min,structure property increased;when welding speed reached to 300 mm/min,the structure property fell sharply.关键词
静止轴肩式搅拌摩擦焊/2219C10S铝合金/组织/拉伸性能Key words
Stationary shoulder friction stir welding/2219C10S aluminum alloy/Microstructure/Structure property分类
矿业与冶金引用本文复制引用
武颖,李迎,张玉芝..2219铝合金静止轴肩搅拌摩擦焊接头组织及性能[J].宇航材料工艺,2018,48(3):56-60,5.
