Excimer laser treatment of ZE41 magnesium alloy for corrosion resistance and microhardness improvement

Article dans une revue avec comité de lecture
Auteur
KHALFAOUI, Walid
38168 Institut Universitaire des systemes Thermiques Industriels - UMR 6595
VALÉRIO, Eric
38168 Institut Universitaire des systemes Thermiques Industriels - UMR 6595
AUTRIC, Michel
38168 Institut Universitaire des systemes Thermiques Industriels - UMR 6595
ccMASSE, Jean-Eric
211915 Mechanics surfaces and materials processing [MSMP]

URI
http://hdl.handle.net/10985/8442
DOI
10.1016/j.optlaseng.2010.03.009
Date
2010
Journal
Optics and Lasers in Engineering

Résumé

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 surface were characterized, thanks to the scanning electron microscopy (SEM). The melted Mg-alloy presented a homogenous distribution of the alloying elements in the magnesium matrix. The laser surface melting treatment increased the microhardness of the ZE41 Mg-alloy and improved its corrosion resistance.

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