Abstract
Sintering injection-moulded WC–7 wt% Ni in a hydrogen atmosphere at temperatures higher than 900°C resulted in an inhomogeneous microstructure, as Ni2W4C (η phase) preferentially developed near the surface of specimens. Subsequent to sintering at temperatures higher than the liquid-phase formation temperature, the surface of specimens was virtually composed of η phase. This arose from the excessive decarburization occurring near the surface of specimens, and the exudation of the Ni-based metal binder towards the surface of specimens. Primarily caused by the dissolution of W into the Ni binder phase, the saturation magnetization of WC–7 wt% Ni decreased at temperatures lower than 1000°C.
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.
