Microstructure and properties of welds between 5754 Al alloys and AZ31 Mg alloys using a Yb:YAG laser
Communication avec acte
Date
2014Résumé
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 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.
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Article dans une revue avec comité de lectureBANNOUR, Sana; ABDERRAZAK, Kamel; MATTEI, Simone; AUTRIC, Michel; MHIRI, Hatem; MASSE, Jean-Eric (Journal of Laser application, 2013)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, ...
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Article dans une revue avec comité de lectureA 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 ...
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Communication avec acteOUALLAM, Seddik; DJEGHLAL, Lamine; KABBA, L; MASSE, Jean-Eric; BARRALLIER, Laurent (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 ...
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Article dans une revue avec comité de lectureThe temperature evolution during friction stir welding (FSW) and the resulting residual stresses of AZ31 Mg alloy were studied to get a better understanding of the mechanisms involved in this process. The relationship ...
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Residual stress evolution analysis in AZ31 friction stir welds using X-Ray and neutron diffraction Communication avec acteCOMMIN, Loreleï; MASSE, Jean-Eric; BARRALLIER, Laurent (JCPDS - International Centre for Diffraction Data, 2009)The challenges of weight reduction in aerospace industry have drawn considerable interest in magnesium alloys technologies. Assessing the efficiency of new joining techniques, as Friction Stir Welding (FSW) is then required. ...