Abstract
In this study, WC-0.5 Co cemented carbides containing WC platelet are prepared by spark plasma sintering (SPS) with the certain B4C content. The effect of B4C additive on formation mechanism of WC platelet grains is mainly investigated. According to XRD and EPMA analyses, the excess (101¯1) peak is present only when adding 1 wt% B4C, and B2CoW2 and carbon are generated around WC platelet grains. TEM studies indicate that some planar defects and facet-roughening surfaces (steps/kinks) exist in platelet grains. It illustrates that the growth of WC platelet crystal is through the defect-assisted nucleation. WC platelet may cause the reducing of hardness, but it can increase fracture toughness.
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.
