The influence of position in overlap joints of Mg and Al alloys on microstructure and hardness of laser welds
TypeArticles dans des revues avec comité de lecture
Structure and properties of laser beam welding zone of dissimilar materials, AZ31 magnesium alloy and A5754 Aluminum alloy, are investigated. The microstructure and quality of the Mg/Al weld were studied by metallography, microhardness and optical microscopy. Differences in physical and mechanical properties of both materials, magnesium and aluminum, affect weldability and resistance of this combination, and lead to the formation of intermetallic compounds in the welded metal.
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Microstructure and properties of welds between 5754 Al alloys and AZ31 Mg alloys using a Yb:YAG laser BANNOUR, Sana; AUTRIC, Michel; MASSE, Jean-Eric; MATTEI, Simone; MHIRI, Hatem (SPIE, 2014)Dissimilar laser beam welding between A5754 Al alloy and AZ31 Mg alloy with the plate thickness of 2 mm was investigated. Complex flow pattern characterized by a large volume of intermetallic compounds Al12Mg17 and Al3Mg2 ...
Excimer laser treatment of ZE41 magnesium alloy for corrosion resistance and microhardness improvement KHALFAOUI, Walid; VALÉRIO, Eric; MASSE, Jean-Eric; AUTRIC, Michel (Elsevier, 2010)A laser surface melting treatment (LSMT) was performed on a ZE41 Mg-alloy using an excimer KrF laser. The laser-melted layer depth depends on the laser scan speed. The morphology and the microstructure of the laser-melted ...
OUALLAM, Seddik; MASSE, Jean-Eric; DJEGHLAL, Lamine; BARRALLIER, Laurent; KABBA, L (Congrès Français de Mécanique, 2013)Recent programs of aircraft design are characterized in terms of materials, by introducing weldable alloys as alternatives to the traditional technique of riveting, open the way to reduce weight and allow cost reductions ...
JEMAL, Nejah; MASSE, Jean-Eric; LANGLOIS, Laurent; TCHERNIAEFF, Serge; GIROT, Franck (CSC, 2010)Le procédé Friction Stir Welding qui peut se traduire en français par friction malaxage a été inventé par le TWI de Cambridge en 1991. La soudure est réalisée par apport de chaleur provoqué par le frottement d’un outil en ...
BELHADJ, Asma; BESSROUR, Jamel; MASSE, Jean-Eric; BOUHAFS, Mahmoud; BARRALLIER, Laurent (Elsevier, 2010)In this paper, a three-dimensional finite element model is developed to simulate thermal history magnesium-based alloys during laser beam welding. Space–time temperature distributions in weldments are predicted from the ...