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 ...
FABRE, Agnès; MASSE, Jean-Eric (Elsevier, 2012)The use of magnesium alloys in engineering applications is becoming increasingly important as a relatively low density allows savings in energy consumption and therefore reduction in air pollution. An associated reduction ...
Texture evolution in Nd:YAG-laser welds of AZ31 magnesium alloy hot rolled sheets and its influence on mechanical properties COMMIN, Loreleï; DUMONT, Myriam; ROTINAT, René; PIERRON, Fabrice; MASSE, Jean-Eric; BARRALLIER, Laurent (Elsevier, 2011)AZ31 hot rolled magnesium alloy presents a strong basal texture. Using laser beam welding (LBW) as a joining process induces high temperature gradients leading to major texture changes. EBSD was used to study the texture ...
BELHADJ, Asma; MASSE, Jean-Eric; BARRALLIER, Laurent; BOUHAFS, Mahmoud; BESSROUR, Jamel (Laser Institute of America, 2010)Magnesium alloys have a 33% lower density than aluminum alloys, whereas they exhibit the same mechanical characteristics. Their application increases in many economic sectors, in particular, in aeronautic and automotive ...