Ceramic molds based on yttrium oxide for the casting of titanium alloys

M.T. Chukmanova; A.V. Panichkin; A.A. Mamayeva; B.K. Kenzhaliyev; M.N. Azlan

doi:10.31643/2023/6445.10

Authors

M.T. Chukmanova “Institute of Metallurgy and Ore Beneficiation” JSC; Satbayev University
A.V. Panichkin “Institute of Metallurgy and Ore Beneficiation” JSC; Satbayev University
A.A. Mamayeva “Institute of Metallurgy and Ore Beneficiation” JSC; Satbayev University
B.K. Kenzhaliyev “Institute of Metallurgy and Ore Beneficiation” JSC; Satbayev University
M.N. Azlan Universiti Pendidikan Sultan Idris

DOI:

https://doi.org/10.31643/2023/6445.10

Keywords:

molding mixture, yttrium oxide, binding agent, casting mold, titanium alloy.

Abstract

The effect of various binding agents based on aqueous solutions of nitric acid, yttrium nitrate and orthophosphoric acid and yttrium hydroxide gel on the physical and mechanical properties of casting molds based on Y₂O₃ has been studied. It is shown that the most promising binding agent for yttrium oxide casting molds is a phosphate bond. The data describing the curing mechanism of phosphate-bonded molding mass is presented. The influence of the concentration of binding agent solutions on the strength characteristics of molding materials after curing and heat treatment is shown. Information about the interaction of yttrium oxide powder molds with phosphate-binding with titanium melt of VT1-0 and VT6 grades is presented. The obtained data allowed us to describe the advantages and disadvantages of the developed molding compound. A method for producing casting molds based on yttrium oxide powder with a yttrium phosphate-binding agent was developed based on this research.

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Author Biographies

M.T. Chukmanova, “Institute of Metallurgy and Ore Beneficiation” JSC; Satbayev University

Junior researcher, JSC "Institute of Metallurgy and Ore Beneficiation", Almaty, Kazakhstan.

A.V. Panichkin, “Institute of Metallurgy and Ore Beneficiation” JSC; Satbayev University

Candidate of technical sciences, Senior Researcher, JSC "Institute of Metallurgy and Ore Beneficiation", Almaty, Kazakhstan.

A.A. Mamayeva, “Institute of Metallurgy and Ore Beneficiation” JSC; Satbayev University

Candidate of physical and mathematical sciences, JSC "Institute of Metallurgy and Ore Beneficiation", Almaty, Kazakhstan.

B.K. Kenzhaliyev, “Institute of Metallurgy and Ore Beneficiation” JSC; Satbayev University

Doctor of Technical Sciences, Professor, General Director-Chairman of the Management Board of the JSC "Institute of Metallurgy and Ore Beneficiation", Almaty, Kazakhstan.

M.N. Azlan, Universiti Pendidikan Sultan Idris

Physics Department, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, Tanjung Malim, Perak, 35900, Malaysia.

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