Influence of the Local Chemical Composition on the Mechanical Properties of Laser Beam Welded Al-Li Alloys

被引：40

作者：

Enz, Josephin ^{[1
]}

Riekehr, Stefan ^{[1
]}

Ventzke, Volker ^{[1
]}

Kashaev, Nikolai ^{[1
]}

机构：

[1] Helmholtz Zentrum Geesthacht, Inst Mat Res, Mat Mech ACE Ctr, D-21502 Geesthacht, Germany

来源：

LASER ASSISTED NET SHAPE ENGINEERING 7 (LANE 2012) | 2012年 / 39卷

关键词：

CO2 laser beam welding; high strength aluminium alloys; Al-Li; decomposition behaviour; micro-tensile test;

D O I：

10.1016/j.phpro.2012.10.013

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The increasing interest of the aircraft industry in reduction of structural weight of aircrafts has resulted in the development of lightweight and high-strength Al-Li alloys as well as in the introduction of laser beam welding to the manufacturing process. The objective of this study is the investigation of the influence of variations in the chemical composition on local mechanical properties, like micro-hardness and micro-tensile strength, of CO2 laser beam welded skin-stringer joints made from AA2196 and AA2198. Additionally the influence of the welding process on weld chemistry is studied in view of the improvement of the weld quality. (C) 2011 Published by Elsevier B.V. Selection and/or review under responsibility of Bayerisches Laserzentrum GmbH

引用

页码：51 / 58

页数：8

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