Title:
PROCESSING OF INTERMETALLIC ALLOYS
Document Type and Number:
WIPO Patent Application WO2001031071
Kind Code:
A9
Abstract:
An innovative combination of powder metallurgy and hot working steps have allowed for optimization of the processing route for extruded powder metallurgical iron aluminide that is produced from both water atomization and gas atomized powders. Utilizing strain and strain rates sufficient to achieve dynamic recrystallization or superplastic deformation of the intermetallic alloy under hot working conditions, manufacturing methods have been developed which take advantage of the inherent properties of these two regimes to optimize the processing of iron aluminide alloys.
Inventors:
DEEVI SEETHARAMA C
PRASAD Y V R K
SASTRY D H
PRASAD Y V R K
SASTRY D H
Application Number:
PCT/US2000/029028
Publication Date:
August 08, 2002
Filing Date:
October 20, 2000
Export Citation:
Assignee:
CHRYSALIS TECH INC (US)
International Classes:
B22F3/16; C21D6/00; C21D7/13; C22C1/04; C22C38/06; C22C38/12; C22C38/14; C22F1/18; (IPC1-7): C21D1/02; C21D7/13
Download PDF:
Previous Patent: MULTIPLE-LEVEL FURNACE
Next Patent: A METHOD OF OPERATING A BIOLEACH PROCESS WITH CONTROL OF REDOX POTENTIAL
Next Patent: A METHOD OF OPERATING A BIOLEACH PROCESS WITH CONTROL OF REDOX POTENTIAL