Abstract
In this study, we have firstly proposed a high-speed electron beam sintering technique for producing fully dense submicron-grained WC-8Co hardmetals. A distinctive feature of the sintering process is the controlled stress-strain state by varying thermal stresses during local electron beam heating at different rotation speed (0.1; 1.0; 2.5 mm/s) of a cylindrical powder compact. As a result, the sintering time of porous compacts to full density does not exceed 150 s. The experimental and calculated results indicate that the main requirement for obtaining well-sintered material is the shrinkage rate should be less or equal to the rate of thermal expansion of the sample segments subjected to repeated local heating.
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 callMore From: International Journal of Refractory Metals and Hard Materials
Disclaimer: 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.
