Abstract
Defect-free Ni–Mo–Si metal silicide coatings with a microstructure consisting of Mo 2Ni 3Si primary dendrites and the interdendritic Mo 2Ni 3Si/NiSi eutectics were deposited on austenitic stainless steel AISI321 by laser cladding. Wear resistance of the coating is evaluated on pin-on-disc metallic dry sliding wear tester as functions of contact stress and sliding speed. The Mo 2Ni 3Si/NiSi coatings have excellent wear resistance under dry sliding wear test conditions. Wear mass loss of the coating is nearly invariant with the increasing applied contact stress and sliding speed when subjected to a fixed total sliding distance of 900 m, whereas that of the austenitic stainless steel AISI321 increases drastically with increasing contact stress and sliding speed. Worn surface of the Mo 2Ni 3Si/NiSi intermetallic coatings has an unique “non-adhesion” feature characterized by its very clean and smooth surface similar to a polish and etched metallographic section.
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.
