Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 506, Issue 1-2, Pages 157-164Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2008.11.033
Keywords
Laser welding; Mechanical properties; Aluminium alloys; Digital image correlation; Simulation
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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.
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