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Development of Ceramic Moulds with Zirconia Primary Coat for Investment Casting of Gamma Titanium Aluminide Based Alloys

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Abstract:

The fabrication of ceramic moulds with zirconia primary coat for investment casting of gamma titanium aluminide based alloys (hereafter called TiAl alloys) was described in this study. The microstructures and fracture strength of ceramic moulds were characterized. The fracture strength and surface roughness of the ceramic moulds with zirconia primary coat were sufficient for the TiAl investment casting. TiAl blades were used for the technology demonstration in producing TiAl components. TiAl castings produced by the ceramic moulds exhibited an average surface roughness (Ra ) of 6 μm.

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Periodical:

Applied Mechanics and Materials (Volumes 55-57)

Pages:

881-885

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.55-57.881

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Online since:

May 2011

Authors:

Yan Fei Chen, Shu Long Xiao, Jing Tian, Li Juan Xu, Yu Yong Chen

Keywords:

Ceramic Moulds, Investment Casting, TiAl Alloys, Zirconia

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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