Accession Number : AD0474274

Title :   THE DEVELOPMENT OF A SUPERIOR TITANIUM-BASE ALLOY FOR CRYOGENIC APPLICATIONS. VOLUME I.

Descriptive Note : Summary rept. May 64-May 65,

Corporate Author : GENERAL DYNAMICS SAN DIEGO CA CONVAIR DIV

Personal Author(s) : Tryon, R. W.

Report Date : OCT 1965

Pagination or Media Count : 82

Abstract : The purpose of this program is to develop a superior Ti-base alloy that exhibits good formability, weldability, and possesses adequate toughness, strength, and ductility for structural applications from ambient to liquid-hydrogen (-423 F) temperatures. This report describes the work performed in Phase I of a three-phase program. A total of thirty-two 4-1/2- to 6-pound ingots were prepared, processed and tested. Experimental compositions were based upon the TiAl, Ti-Al-Sn, and Ti-Al-V systems. The Al contents varied from 5 to 7-1/2%, the Sn from 2-1/2 to 5%, and the V held to 2-1/2%. Other substitutional alloying elements included Zn, Nf, Nb, Ta, and Mo - whose additions varied from 1 to 5%. Experimental procedures describing the melting, reduction of ingot to sheet, and testing are discussed in detail. (Author)

Descriptors :   (*TITANIUM ALLOYS, MECHANICAL PROPERTIES), (*LOW TEMPERATURE ALLOYS, TITANIUM ALLOYS), CRYOGENICS, SPACECRAFT, TENSILE PROPERTIES, HARDNESS, TOUGHNESS, MANUFACTURING, ROLLING(METALLURGY), WELDING, MICROSTRUCTURE, DUCTILITY, SHEETS, ALUMINUM ALLOYS, TIN ALLOYS, ZIRCONIUM ALLOYS, VANADIUM ALLOYS, CHEMICAL ANALYSIS.

Subject Categories : Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE