Processing of titanium aluminides by ceramic crucible induction melting

• Autor(es): Barbosa, J. ; Ribeiro, Carlos Silva ; Monteiro, A. Caetano
• Data: 1999
• Identificador Persistente: http://hdl.handle.net/1822/12498
• Origem: RepositóriUM - Universidade do Minho
• Assunto(s): Titanium; Aluminides; Induction melting; Crucible; TiAl
• Tipo de Documento: Documento de conferência
• Idioma: Inglês

Descrição

This work describes the processing results of TiAl alloys melted in controlled atmosphere induction furnace, using crucibles made of calcia and zirconia stabilised with yttria, calcia and magnesia, solidified and inside the crucible, in order to simulate the worst situation using this processing. In the results are presented segregation profiles of residual elements and its relation with micro hardness and “alpha-case” extension, in the microconstituents present at room temperature