Abstract
Processes are considered in the selective laser sintering of multilayer composites based on TiN’MTiB2 refractory powder mixtures, hard-alloy material of TN20 type, and a steel substrate. Selectivity of the process, which is expressed in the behavior of the multilayer composite material in sintering regimes that differ in laser power input, is demonstrated. At low power input, the layers of refractory alloys shirnk appreciably mainly because of capillary infiltration of the liquid from the hard-alloy layer, which lies beneath it. At high power, the consolidation of the refractory mixture is due mainly to the formation of an eutectic.
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References
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Institute for Problems of Materials Science, Ukraine National Academy of Sciences, Kiev. Translated from Poroshkovaya Metallurgiya, Nos. 11–12(404), pp. 9–15, November–December, 1998.
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Ragulya, A.V., Stetsenko, V.P., Vereshchak, V.M. et al. Selective laser sintering II. Sintering multilayer refractory composites. Powder Metall Met Ceram 37, 577–582 (1998). https://doi.org/10.1007/BF02680109
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DOI: https://doi.org/10.1007/BF02680109