Friction behavior of laser cladding magnesium alloy against AISI 52100 steel
TypeArticles dans des revues avec comité de lecture
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 in inertia makes these alloys potential candidates for friction components, but they suffer from poor wear resistance. Laser surface alloying with appropriate powder mixture is an innovative technique to improve surface properties of metallic alloys. In this study, the effect of laser surface alloying using Al12%Si powder on wear resistance of a magnesium alloy ZE41 is investigated. Hardness and wear resistance of the alloy are significantly enhanced after treatment.
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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 ...
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 ...
Residual stress evolution analysis in AZ31 friction stir welds using X-Ray and neutron diffraction COMMIN, Loreleï; BARRALLIER, Laurent; MASSE, Jean-Eric (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. ...
COMMIN, Loreleï; DUMONT, Myriam; MASSE, Jean-Eric; BARRALLIER, Laurent (Elsevier, 2009)The 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 ...