Abstract
High temperature hardness of various carbides was measured to analyse the hardness of camented carbides at high temperatures. Sintered carbide specimens which have the grain size of about 100 microns, were made. The hardness was measured up to 1200°C by a micro-Vickers hardness tester. Titanium carbide showed lower hardness at elevated temperatures in spite of high hardness at room temperature, tungsten carbide showed low hardness, and tantalum and niobium carbide showed high hardness at elevated temperatures. Mixed carbides, (WTiTa)C, showed higher hardness not only at room temperature but also at elevated temperatures. However the mixed carbides were much more brittle than single carbides. These phenomena were discussed in somedetail, comparing them with the properties of cemented carbides.
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: Journal of the Japan Society of Powder and Powder Metallurgy
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.
