Influence of the silicon content on the mechanical properties of AA6xxx laser welds

被引：19

作者：

Fabregue, D. ^{[1
]}

Deschamps, A. ^{[2
]}

Suery, M. ^{[2
]}

机构：

[1] Univ Lyon, INSA Lyon, CNRS, MATEIS,Domaine Sci Doua,UMR 5510, F-69621 Villeurbanne, France

[2] Grenoble INP, SIMaP, CNRS, UJF,UMR 5266, F-38402 St Martin Dheres, France

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2009年 / 506卷 / 1-2期

关键词：

Laser welding; Mechanical properties; Aluminium alloys; Digital image correlation; Simulation; HOT CRACKING; MICROSTRUCTURE; DUCTILITY; BEHAVIOR; ALLOYS;

D O I：

10.1016/j.msea.2008.11.033

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The mechanical properties of Al-Mg-Si laser welds have been investigated as a function of the silicon content in the fusion zone which depends on the amount of the Al-12%Si filler wire used during welding. The results show that not only the tensile strength but also the fracture strain increase when the silicon content increases. This behaviour is explained by a better homogeneity of the local strains in the different zones of the welds when the silicon content increases. Finite element simulations taking into account the local mechanical properties of the various zones allow predicting the mechanical response of the macroscopic weld in tension. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：157 / 164

页数：8

共 24 条

[1] Mechanical characterization of CO2 laser beam butt welds of AA5083 [J].

Ancona, A. ;

Lugara, P. M. ;

Sorgente, D. ;

Tricarico, L. .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2007, 191 (1-3) :381-384

[2] Laser beam welding of Al-Mg-Si-Cu alloy 6013 sheet using silicon rich aluminium filler powders [J].

Braun, R .

MATERIALS SCIENCE AND TECHNOLOGY, 2005, 21 (01) :133-140

[3] Nd:YAG laser butt welding of AA6013 using silicon and magnesium containing filler powders [J].

Braun, Reinhold .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 426 (1-2) :250-262

[4] Microstructural and mechanical characterization of electron beam welded Al-alloy 7020 [J].

Cam, G. ;

Kocak, M. .

JOURNAL OF MATERIALS SCIENCE, 2007, 42 (17) :7154-7161

[5] Phase relations and precipitation in Al-Mg-Si alloys with Cu additions [J].

Chakrabarti, DJ ;

Laughlin, DE .

PROGRESS IN MATERIALS SCIENCE, 2004, 49 (3-4) :389-410

[6]

DIF R, 1998, P 6 INT C AL ALL ICA, P1991

[7] Microstructure of butt laser joints of aluminium alloy 6056 sheets with an AS12 filter [J].

Fabrègue, D ;

Deschamps, A ;

Suery, M .

MATERIALS SCIENCE AND TECHNOLOGY, 2005, 21 (11) :1329-1336

[8] Multiscale analysis of the strength and ductility of AA 6056 aluminum friction stir welds [J].

Gallais, C. ;

Simar, A. ;

Fabregue, D. ;

Denquin, A. ;

Lapasset, G. ;

de Meester, B. ;

Brechet, Y. ;

Pardoen, T. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2007, 38A (05) :964-981

[9] Comparative study on local and global mechanical properties of 2024 T351, 2024 T6 and 5251 O friction stir welds [J].

Genevois, C ;

Deschamps, A ;

Vacher, P .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 415 (1-2) :162-170

[10] Predictive model for void nucleation and void growth controlled ductility in quasi-eutectic cast aluminium alloys [J].

Huber, G ;

Brechet, Y ;

Pardoen, T .

ACTA MATERIALIA, 2005, 53 (09) :2739-2749

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