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TitleControlled residual surface contamination of gamma-TiAl, induction melted in ceramic crucibles
Author(s)Barbosa, J.
Ribeiro, Carlos Silva
Monteiro, A. Caetano
Issue date2001
PublisherDeutsche Gesellschaft für Materialkunde (DGM)
CitationEUROPEAN CONGRESS ON ADVANCED MATERIALS, PROCESSES AND APPLICATIONS, Munich, Germany, 2001 – “Proceedings of the European Congress on Advanced Materials, Processes and Applications : materials week 2001.” Munich : Deutsche Gesellschaft für Materialkunde, 2001. p. 100-108.
Abstract(s)This paper describes the melting procedure of gamma TiAl, using a multi-layered refractory crucible based on stabilized zirconia. Hardness and residual element contamination will be presented and discussed for samples let solidified and cooled inside the crucible in order to simulate the worst cooling conditions, regarding metal-mould reaction (samples subjected to the longest cooling time experimentally available). Results will be compared with samples melted and solidified in calcia and single stabilized zirconia crucibles. Some microhardness, residual contamination profiles and surface finish of samples poured into different refractory investment casting moulds will also be presented and discussed.
Appears in Collections:CITEPE - Publicações em actas de encontros científicos / Papers in conference proceedings
CGIT - Publicações em actas de encontros científicos / Papers in conference proceedings

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