Metal treatment – Process of modifying or maintaining internal physical... – With explosive or exothermic agent
Patent
1997-08-21
1999-09-21
Wyszomierski, George
Metal treatment
Process of modifying or maintaining internal physical...
With explosive or exothermic agent
148527, 419 8, 419 68, B22F 704
Patent
active
059548959
ABSTRACT:
A method of making a deposit on a component made of a nickel or cobalt based superalloy is described wherein a deposit material consisting of reactive powders corresponding to an intermetallic material or of a superalloy powder is deposited on the component before placing it in a chamber and subjecting it to a neutral gas at a hydrostatic pressure of up to 1.5 GPa, the chamber being provided with heater means for producing a controlled temperature of up to 1200.degree. C. at a rate of increase of from 5.degree. C. to 120.degree. C. per minute and a thermal gradient of 200.degree. C. between the ends of the component, and the temperature and pressure conditions in the chamber are selected such that the deposit material undergoes a synthesis reaction by self-propagated combustion under high pressure so as to obtain densification of the deposit and a metallurgical bonding between the deposit and the component.
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Patent Abstracts of Japan, vol. 4, No. 129 (c-024), Sep. 10, 1980 & JP 55 082762 Jun. 21, 1980 p. 1.
Dumez Marie-Caroline
Huchin Jean-Pierre
Marin-Ayral Rose Marie
Perraud Didier
Tedenac Jean-Claude
Societe Sochata
Wyszomierski George
LandOfFree
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