Microstructure and properties of welds between 5754 Al alloys and AZ31 Mg alloys using a Yb:YAG laser

Sana Bannour; Michel Autric; Jean-Eric Masse; Simone Mattei; Hatem Mhiri

doi:10.1117/12.2070989

3 February 2015 Microstructure and properties of welds between 5754 Al alloys and AZ31 Mg alloys using a Yb:YAG laser

Sana Bannour, Michel Autric, Jean-Eric Masse, Simone Mattei, Hatem Mhiri

Proceedings Volume 9255, XX International Symposium on High-Power Laser Systems and Applications 2014; 92553Z (2015) https://doi.org/10.1117/12.2070989
Event: XX International Symposium on High Power Laser Systems and Applications, 2014, Chengdu, China

Abstract

Dissimilar laser beam welding between A5754 Al alloys and AZ31 Mg alloys with the plate thickness of 2 mm was investigated. Complex flow pattern characterized by a large volume of intermetallic compounds Al₁₂Mg₁₇ and Al₃Mg₂ is formed in the fusion zone. Microhardness measurement of the dissimilar welds presents an uneven distribution due to the complicated microstructure of the weld, and the maximum value of microhardness in the fusion zone is much higher than of the base materials.

Citation Download Citation

Sana Bannour, Michel Autric, Jean-Eric Masse, Simone Mattei, and Hatem Mhiri "Microstructure and properties of welds between 5754 Al alloys and AZ31 Mg alloys using a Yb:YAG laser", Proc. SPIE 9255, XX International Symposium on High-Power Laser Systems and Applications 2014, 92553Z (3 February 2015); https://doi.org/10.1117/12.2070989

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