Electron beam welding of aluminium alloy aw2099

被引：0
|
作者：
Ján U. [1 ]
Marônek M. [1 ]
Bárta J. [1 ]
Sahul M. [2 ]
Jurina F. [1 ]
Pašák M. [2 ]
机构：
[1] 1Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology in Trnava, Institute of Production Technologies, J. Bottu 25, Trnava
[2] Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology in Trnava, Institute of Materials Science, J. Bottu 25, Trnava
来源：
Ján, Urminský (jan.urminsky@stuba.sk) | 1600年 / Trans Tech Publications Ltd卷 / 994期
关键词：
Aluminium lithium alloy; Electron beam welding; Structural analysis;
D O I：
10.4028/www.scientific.net/msf.994.28
中图分类号：
学科分类号：
摘要：
The paper deals with the analysis of mechanical properties of welded joints made of AW 2099 aluminium-lithium alloy by electron beam welding. The thickness of the experimental material was 3±0.2 mm. PZ EZ 30 STU electron beam welding machine was used for production of welds. Maximum accelerating voltage used within this study was 55 kV. Metallographic analysis, hardness measurement test and static tensile were carried out. The structure of the weld joint of aluminiumlithium alloy was investigated. Produced welded joints were characterized by the presence of following zones: Heat affected zone (HAZ), equiaxed non-dendritic zone (EQZ), columnar dendritic zone (CDZ) and equiaxed dendritic zone (EDZ). EQZ grains were formed due to heterogeneous nucleation on precipitates at the fusion boundary. EQZ is typical for joining of aluminium lithiumalloys. © 2020 Trans Tech Publications Ltd, Switzerland.
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页码：28 / 35
页数：7
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