Accession Number : AD0744109

Title :   Development of Alloy for Cast Air-Cooled Turbine Blades.

Descriptive Note : Technical rept. 1 Jul 69-31 Dec 71,

Corporate Author : TRW INC CLEVELAND OHIO

Personal Author(s) : Collins,H. E. ; Graham,L. D.

Report Date : JAN 1972

Pagination or Media Count : 126

Abstract : The objective of the program was to develop an alloy and to improve processing for cast air-cooled blades used in high performance gas turbines. The program was divided into three phases. Phase 1 was a screening study where 36 compositions were melted, cast and evaluated on the basis of 1400F tensile, 1800F/20 ksi stress rupture and hot corrosion tests. Phase 2 was a concurrent study of the effect of section size and processing variables upon the thin section properties of high temperature alloys. Phase 3 included the characterization of the two most promising alloys from Phase 1 using the processing results from Phase 2. (Author)

Descriptors :   (*NICKEL ALLOYS, *GAS TURBINE BLADES), HEAT RESISTANT ALLOYS, HEAT RESISTANT METALS, MECHANICAL PROPERTIES, MICROSTRUCTURE, CORROSION RESISTANCE, CHROMIUM ALLOYS, HAFNIUM ALLOYS, TANTALUM ALLOYS, TUNGSTEN ALLOYS, ALUMINUM ALLOYS, TITANIUM ALLOYS, MOLYBDENUM ALLOYS, VANADIUM ALLOYS

Subject Categories : Properties of Metals and Alloys
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE