Preparation Technology of Investment Casting Cerium Oxide Mold Shell for Titanium Alloy
Author of the article:FAN Lipeng;WANG Baobing;FENG Gangwen;JI Yanshuo;ZHANG Xuliang;XU Xinfeng;GU Huiwang;YANG Jian
Author's Workplace：Shanghai Spaceflight Precision Machinery Institute,Shanghai 201600,China;Shanghai Jiaotong University,School of Materials Science and Engineering,Shanghai 200240,China
Key Words：titanium investment casting yttria shell preparation process
Abstract：
The surface coating of titanium alloy precision casting was prepared by using ammonium zirconium carbonate as binder and yttrium oxide gradation powder as refractory.TG-DSC thermal analysis was carried out on the surface and back layer of the shell to optimize the firing process of the shell.The morphology of the fired shell was observed and the strength of the fired shell was tested.The results show that the normal temperature and high temperature residual strength of yttria shell can meet the requirements of titanium alloy investment casting process.
