Mechanical properties of underwater friction stir welded 2219 aluminum alloy

被引：111
|
作者：
Liu Hui-jie [1 ]
Zhang Hui-jie [1 ]
Huang Yong-xian [1 ]
Yu Lei [1 ]
机构：
[1] Harbin Inst Technol, State Key Lab Adv Welding Prod Technol, Harbin 150001, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2010年 / 20卷 / 08期
关键词：
aluminum alloy; underwater friction stir welding; mechanical property; MICROSTRUCTURE; PRECIPITATION;
D O I：
10.1016/S1003-6326(09)60309-5
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Underwater friction stir welding of 2219 aluminum alloy was carried out in order to further improve the joint performances by varying welding temperature history. The results indicated that the tensile strength of the joint can be improved from 324 MPa by external water cooling action in normal to 341 MPa. However, the plasticity of the joint is deteriorated. The underwater joint tends to fracture at the interface between the weld nugget zone and the thermal mechanically affected zone on the advancing side during tensile test, which is significantly different from the normal joint.
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页码：1387 / 1391
页数：5
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