ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
WC-10Co-0.8VC nanocrystalline powders were sintered by spark plasma sintering (SPS)and hot pressing sintering (HPS), and the microstructure and properties were compared. Resultsshow that, sintered at 1300℃, the sample prepared by SPS for only 3 minutes has higher densitythan that prepared by HPS for 60 minutes. SEM and SPM observation shows SPS at 1200℃ has amore uniform and finer microstructure, and most of the WC grains are smaller than 100nm. It has arelative density of 95.1%, HV30 of 1887, and KIC of 11.5 MPam1/2. If a suitable sintering parameteris chosen, SPS is a promising consolidation technique to prepare nanocrystalline WC-10Co-0.8VCwith improved properties
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/14/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.534-536.1229.pdf