Accession Number : AD0877904
Title : Development of Oxidation Resistant, High-Strength, Columbium-Base Alloys.
Descriptive Note : Final technical rept. 1 Jul 66-30 Jun 69,
Corporate Author : UNION CARBIDE CORP KOKOMO IN STELLITE DIV
Personal Author(s) : Roche, T. K. ; Graham, D. L.
Report Date : JAN 1970
Pagination or Media Count : 197
Abstract : The program was carried out for the development of a fabricable columbium-base alloy with improved oxidation resistance and good strength-properties at 2000F and above for use as a blade material in gas turbine engines. Nineteen electron beam melted ternary alloys from the Cb-W-Ta and Cb-W-Hf systems within the composition range 10-25 percent tungsten, 15-30 percent tantalum, 2-35 percent hafnium, were evaluated for fabricability, tensile and creep-rupture strength properties, and oxidation resistance. (Author)
Descriptors : (*NIOBIUM ALLOYS, MECHANICAL PROPERTIES), (*GAS TURBINE BLADES, NIOBIUM ALLOYS), CREEP STRENGTH, CORROSION RESISTANCE, MANUFACTURING, THERMAL STABILITY, ELECTRON BEAM MELTING, HARDNESS, TUNGSTEN ALLOYS, TANTALUM ALLOYS, HAFNIUM ALLOYS.
Subject Categories : Properties of Metals and Alloys
Jet and Gas Turbine Engines
Distribution Statement : APPROVED FOR PUBLIC RELEASE