PSI - Issue 20

Sharin P.P. et al. / Procedia Structural Integrity 20 (2019) 236–241 Sharin P.P. et al. / Structural Integrity Procedia 00 (2019) 000–000

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4. Conclusion Thin metal-carbide coatings formed on the transition zone consisting of an interacting metal, carbide phases, traces of oxide and graphite during solid-phase contact interaction of diamond with transition metals in the conditions specified in the experiment. Metal-carbide coatings bond strength were determined by shear test: diamond-iron and diamond-chromium contact pairs have the highest contact strength of 24.12 MPa and 6.76 MPa, respectively. The revealed structural-phase features of the transition zone are caused by the difference in the degree of the catalytic effect of metals on the phase transformation of diamond into amorphous carbon. The formation of a durable metal-carbide layer during the contact interaction of diamond with iron and chromium – which essentially is a metallized coating obtained under conditions corresponding to sintering copper-impregnated diamond-containing matrices based on cemented carbide powder mixtures – can be used in a technology development that provides an increased level of diamond retention in composite materials. References Artini, C., Muolo, M.L., Passerone, A, 2012. Diamond-metal interfaces in cutting tools: a review. Journal of Materials Science 47, 3252–64 Cu(Cr)–diamond composite interlayer. Materials Letters 81, 155–157 Hsieh, Y.Z., Lin, S.T., 2001. Diamond tool bits with iron alloys as the binding matrices. Materials Chemistry and Physics 72, 121–125. Huang, Y., Xiao, H., Ma, Zh., Wang, J., Pengzhao, G., 2007. Effects of Cu and Cu/Ti interlayer on adhesion of diamond film. Surf. Coat. Technol. 202, 180–184 Isonkin, A.M., Duda, T.M., Belyavina, N.N., Tkach, V.N., 2013. 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