Title:
GAS TURBINE NOZZLE MATERIAL
Document Type and Number:
Japanese Patent JPS5582754
Kind Code:
A
Abstract:
PURPOSE: To provide a Fe-base heat resistant super alloy for the title nozzle material with superior high temp. corrosion resistance and high temp. ductility which alloy contains a specified ratio of C, Cr, Ni and W and/or Mo.
CONSTITUTION: The Fe-base super alloy consists of, by wt., C 0.2W1, esp. 0.3W 0.6%, Cr 20W40, esp. 25W30%, Ni 15W50, esp. 35W48%, W and/or Mo 5W20, esp. 7W13%, and the balance Fe. Because of its high Cr content this alloy can be manufactured by melting in the air, and the low m.p. of Fe results in superior precision castability. This alloy exhibits high ductility, superior weldability and machinability. In addn., the nozzle material is cheap since it is based on Fe and contains no expensive Co.
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Inventors:
FUKUI HIROSHI
KAGOHARA HIROMI
KAGOHARA HIROMI
Application Number:
JP15722478A
Publication Date:
June 21, 1980
Filing Date:
December 15, 1978
Export Citation:
Assignee:
HITACHI LTD
International Classes:
F01D9/02; C22C19/05; C22C27/06; C22C30/00; C22C38/00; C22C38/44; C22C38/48; C22C38/50; C22C38/52; F02C7/00; (IPC1-7): C22C19/05; C22C27/06; C22C38/44; C22C38/48; C22C38/50; C22C38/52; F01D9/02; F02C7/00