Conclusions
A study was made of the reactions of TiCx phases with titanium diboride over wide ranges of temperatures and concentrations. It was found that, up to 2000–2100°C, there is virtually no intersolubility in such alloys. At the eutectic temperatures, however, which fall in TiCx-TiB2 sections from 2520 to 2380°C as the carbon index x changes from 0.95 to 0.68, the solubility of TiB2 becomes appreciable, increasing from 3–4 wt.% in alloys of the TiC0.95-TiB2 section to 7–8 wt.% in alloys of the TiC0.68-TiB2 section. On the basis of data yielded by x-ray structural and chemical analyses, metallographic examinations, and microhardness and initial melting-point determinations, a constitution diagram of the quasi-binary system TiC0.95-TiB2 has been constructed.
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Translated from Poroshkovaya Metallurgiya, No. 9(153), pp. 40–43, September, 1975.
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Ordan'yan, S.S., Unrod, V.I. & Avgustinik, A.I. Reactions in the system TiCx-TiB2 . Powder Metall Met Ceram 14, 729–731 (1975). https://doi.org/10.1007/BF00800242
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DOI: https://doi.org/10.1007/BF00800242