Abstract
Ni–W alloy coating layers were successfully materialized through an innovative surface alloying approach, high-current pulsed electron beam (HCPEB) irradiation. Two levels of HCPEB irradiation, 10 and 20 pulses, were applied to tungsten powders coated on nickel substrate. In the case of 10 pulses HCPEB irradiated sample, surface defects were formed on the Ni–W alloy surface layer. As the number of HCPEB pulse increased to 20, the surface became much smoother as compared to that of 10 pulses irradiated one. During irradiation, W particles were dissolved into the Ni substrate, and the newly formed Ni–W alloy layer was mainly composed of two major phases, NiW and Ni. After HCPEB irradiation, the microhardness was significantly increased, and the coefficient of friction (COF) and wear rate were reduced, which is attributed to the ultrafine W particles formed in the Ni substrate. Moreover, the corrosion property was enhanced after HCPEB irradiation.
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.
