Abstract
The diamond-coated cemented carbide (WC-6%Co) inserts have been produced using a CVD intermediate tungsten layer (∼5 m) between substrate and diamond. Diamond films about 15 m thick were grown in ASTex and a pilot plant with anomalous glow discharge plasma using H 2-CH 4(10%)-O 2(1%) and H 2-CH 4(1%) mixtures, respectively. Gas pressure, temperature and growth rate in both cases were about 10 kPa, 800 °C, and 7 m h −1. Chemical and phase composition of tungsten and diamond coatings have been studied by electron probe microanalysis and X-ray diffraction. The wear resistance of the inserts was estimated by the turning of Al-12%Si alloy. It has been shown that wear resistance of the inserts increases by about three times compared with PCD tools.
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.
