焊丝成分对2050铝锂合金焊接性能影响研究
Effect of the Welding Wires Variation on Structure and Mechanical Property of Fusion-welding Joint of 2050 Al-Li Alloy Plate
陈永来 1丁俊峰 1杜玥 1黄思源 1石钲 1康黎 1吕宏军1
作者信息
- 1. 航天材料及工艺研究所,北京 100076
- 折叠
摘要
采用十字搭接试验方法测定 2050铝锂合金焊接裂纹敏感性,研究了焊丝成分变化对 2050铝锂合金焊接结晶裂纹率、液化裂纹率的影响,并对焊接接头的组织形貌、断裂特征和力学性能等进行了测试和分析.研究结果表明:采用钨极氩弧焊匹配Al-Cu-Si-Ti-Sc-Ce-B系焊丝对 2050铝锂合金进行焊接,获得的焊接接头结晶裂纹率K1 和液化裂纹率K2均为0,其强度系数可达母材的 70%.
Abstract
Welding crack susceptibility of 2050 Al-Li alloy is studied by using the cross-lap-joints method.Difference of welding wire component on the solidification crack rate and liquefied crack rates is analyzed.And the microstructure,fracture morphology,mechanical properties of the weld-joint are characterized.Results show that the solidification crack rate and liquefied crack rate of the weld-joint with Al-Cu-Si-Ti-Sc-Ce-B wire are zero,and the strength coefficient of the weld-joint reaches 0.7.
关键词
2050铝锂合金/焊丝/焊接性能Key words
2050 Al-Li alloy/welding wire/welding properties引用本文复制引用
出版年
2024
NETL
NSTL
万方数据