Investigation of the mechanism for interaction of calcium zirconate, oxides of calcium and zirconium with titanium melts
Mamayeva A. Panichkin A. Chukmanova M. Imbarova A. Kenzhaliyev B. Belov V.
2022Taylor and Francis Ltd.
International Journal of Cast Metals Research
2022#35Issue 5-6152 - 160 pp.
The problem to obtain casting molds for titanium alloys is not resolved in full. It is primarily due to the high reactivity of titanium alloys resulting in their interaction with refractory materials. This reduces the quality of the castings due to the formation of various defects. The interaction of VT1-0 grade titanium in the liquid state with CaO, ZrO2 and CaZrO3 were studied. The processes occurring at the contact boundary between these substances and a change in the structure and microhardness of titanium castings near this boundary were described herein. The data obtained showed the disadvantages of molding materials based on CaO and CaZrO3. The features revealed for the interaction of a titanium melt with CaZrO3, where a highly porous CaTiO3 layer has been formed in the reaction zone,made it possible to recommend this compound as a promising material to cast molds in order to produce castings from titanium alloys.
calcium oxide , calcium zirconate , casting mould , reaction zone , Titanium melt , zirconium oxide
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Laboratory of Material Science, Satbayev University, Institute of Metallurgy and Ore Beneficiation, Almaty, Kazakhstan
Department of foundry technologies and art processing of materials, National University of Science and Technology «Moscow Steel and Alloy Institute», Moscow, Russian Federation
Laboratory of Material Science
Department of foundry technologies and art processing of materials
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