Serge PRIGENT, Jean DEBUIGNE
This study addresses the challenges posed by the investment casting process of titanium and its alloys, particularly the pollution caused by mould/metal reactions. The objective is to explore an innovative approach involving pure Calcia dip slurry to produce ceramic moulds using the lost wax casting process. An experimental setup simulating the casting conditions for titanium was constructed to analyze the interaction at the reaction zone through metallography, microhardness tests, and Electron Probe Micro-Analysis (EPMA). Results demonstrated that conventional contaminants such as Alumina, Zirconia, and Magnesia adversely affect the quality of Calcia ceramics, leading to undesirable modifications in the titanium microstructure. Crucially, the formation of an “α-case” layer was not observed, even at elevated temperatures, indicating a potential improvement in casting quality when Calcia is utilized. The reaction dynamics between titanium and mold materials were further elucidated, revealing that while Calcium Oxide's reactivity is limited, it is influenced by the presence of SiO2 and Fe2O3 in industrial Calcia. These findings highlight the viability of using Calcia in investment casting, suggesting enhanced performance in the processing of titanium alloys.
@article{fc321a11-d3d1-4c74-b1d8-01ef884ac756,
title={1992 Vol.2 2 A New Calcia Technology for Investment Casting of Titanium Serge Prigent},
author={Serge PRIGENT and Jean DEBUIGNE},
year={2026},
language={en}
}TY - JOUR TI - 1992 Vol.2 2 A New Calcia Technology for Investment Casting of Titanium Serge Prigent AU - Serge PRIGENT AU - Jean DEBUIGNE PY - 2026 LA - en ER -
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