Microstructure and mechanical properties of precision cast TiAl turbocharger wheel
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From a technical perspective, many of the unique properties of TiA1-based alummides making them attractive for high-temperature structural application also assign these alloys a challenge to process into useful products. Cast TiA1 alloys due to their relatively low production cost are on the verge of a commercial application, especially in vehicle industry. The results concerning technology of precision casting together with microstructural and mechanical tests examinations of a turbocharger TiAl-based wheel prototype have been described. The processing technology of self-supporting ceramic shell molds was successfully verified during precision casting of turbocharger wheels. According to all results, a processing window for precision casting was established. (c) 2005 Elsevier B.V. All rights reserved.
Кључне речи:TiAl / self-supporting ceramic mold / precision casting / microstructure / tensile properties / processing window
Извор:Journal of Materials Processing Technology, 2005, 167, 1, 14-21
ISSN: 0924-0136 (print)