EP 0480404 A2 19920415 - Corrosion-resistant and heat-resistant metal composite and method of producing.
Title (en)
Corrosion-resistant and heat-resistant metal composite and method of producing.
Title (de)
Korrosionsbeständiger und wärme beständiger Metall-Verbundwerkstoff und Verfahren zu seiner Herstellung.
Title (fr)
Matériau métallique composite résistant à la corrosion et à la chaleur et son procédé de fabrication.
Publication
Application
Priority
- JP 7776391 A 19910410
- JP 13425891 A 19910605
- JP 27162790 A 19901009
Abstract (en)
A metal composit is prepared by covering at least a part of the surface of a substrate, typically a sheet of an Fe-based alloy or steel with Al or an Al-alloy dirctly or with an intermediate layer of Ni, annealing the covered material under vacuum or in an inert gas atmosphere, and heating in an oxidizing atmosphere to form an internal layer of inermetallic compouds and a surface portecting layer of Al2O3. In case of direct covering with Al or Al-alloy,there will occur intermetallic compounds, Fe3Al and/or FeAl, and in case of using an Ni sheet as the intermediate layer, intermetallic compounds, Ni3Al and/or NiAl Nb may be used in place of Ni. As the substrate, Ni or a Ni-alloy containing more than 20 weight % of Ni may be used. The substrate may be in the form of wire The product metal composit has improved high temperature corrosion resistance and chemical resistance as wee as good processability, and is paticularly useful for electric heater material and catalyst carrier of automobile exhaust gas cleaners.
IPC 1-7
IPC 8 full level
C23C 26/00 (2006.01); C23C 28/00 (2006.01)
CPC (source: EP)
C23C 26/00 (2013.01); C23C 28/321 (2013.01); C23C 28/345 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0480404 A2 19920415; EP 0480404 A3 19930217; EP 0480404 B1 19950719; DE 69111362 D1 19950824; DE 69111362 T2 19960104
DOCDB simple family (application)
EP 91117218 A 19911009; DE 69111362 T 19911009