Abstract
In this study, the surface of AZ91 magnesium alloy plasma sprayed with WC–12 wt-%Co powder was melted by pulsed Nd:YAG laser. Microstructure, chemical composition and phase analyses of the treated layers were studied by utilising a scanning electron microscope equipped with energy dispersive spectroscopy, X-ray diffraction technique and a microhardness testing machine. Laser treated layers showed much finer structure compared to that of the original base material with suitable distribution of WC particles. Microhardness of melted zone achieved at optimum condition was ∼3.5 times higher than that of the base material. In addition, the presence of WC particle and refined structure reduced the wear rate to less than half in the laser treated layer.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
