C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 33/00 (2006.01) B22F 3/12 (2006.01) B22F 3/23 (2006.01) C22C 1/04 (2006.01) C22C 14/00 (2006.01) C22C 29/00 (2006.01) C22C 32/00 (2006.01)
Patent
CA 2319507
An iron aluminide composite including an oxide filler and an additive which improves metallurgical bonding of the oxide filler to the iron aluminide. The composite is useful for structural components, extruded shapes and electrical resistance heating elements. The iron aluminide can include, in weight %, 1 % Cr, 4-32 % Al, 2 % Ti, 2 % Mo, 1 % Zr, 1 % C, 3 % W and 0.1 % B. The oxide filler can comprise 40 % aluminum oxide particles and the additive can comprise up to 40 % of one or more refractory carbides such as TiC.
La présente invention concerne un composite d'aluminure de fer comprenant une charge d'oxyde et un additif qui améliore la liaison métallurgique de la charge d'oxyde à l'aluminure de fer. Le composite de la présente invention est utilisé dans des composants structurels, des profilés extrudés et des éléments chauffants à résistance électrique. L'aluminure de fer peut comprendre, en pourcentage en poids, ?1 % Cr, 4-32 % Al, ?2 % Ti, ?2 % Mo, ?1 % Zr, ?1 % C, ?3 % W et ?0,1 % B. La charge d'oxyde peut comprendre ?40 % de particules d'oxyde d'aluminium et l'additif peut comprendre jusqu'à 40 % d'un ou plusieurs carbures réfractaires tels que le TiC.
Deevi Seetharama C.
Schneibel Joachim Hugo
Chrysalis Technologies Inc.
Philip Morris Products Inc.
Ridout & Maybee Llp
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