Accession Number : AD0282037

Title :   COMPOSITION AND MECHANICAL PROPERTIES OF SELECTED COLD-HOLD AND SKULL-CAST TITANIUM ALLOYS,

Descriptive Note : Report of investigations,

Corporate Author : BUREAU OF MINES WASHINGTON D C

Personal Author(s) : Calvert ,E. D. ; Magnusson,P. C.

Report Date : DEC 1962

Pagination or Media Count : 26

Abstract : Physical properties of 4 Ti-base alloys in ingot form and in sheet form were evaluated and correlated, where possible, with variations in the melting and casting procedure. Cold-mold ingots of Ti-8Mn and Ti-16V-2.8Al had cores of coarse dendritic-structured metal, and those of Ti-Mo-2Al had inclusions of undissolved alloying constituent. The skull-cast ingots of all compositions appeared sound. Mn content of the finished ingots was approximately the same in cold-mold and skull-cast ingots, but volatilization had removed about one quarter of the Mn which had been added. Al and Mo contents were appreciably lower in skull-cast than in cold-mold ingots, and the same was true to a lesser degree with Va. Skull-cast ingots had higher carbon content than cold-mold ingots. Cold-mold ingots of Ti-6Mo-2Al were harder by the Brinell test than skull-cast ingots, but the reverse was true of Ti-16V-2.8Al. (Author)

Descriptors :   *TITANIUM ALLOYS, *TITANIUM CASTINGS, METALLURGY, SHEETS, MOLYBDENUM ALLOYS, ALUMINUM ALLOYS, VANADIUM ALLOYS, MANGANESE ALLOYS, FORGING, MELTING, CASTING, PHYSICAL PROPERTIES, MECHANICAL PROPERTIES

Distribution Statement : APPROVED FOR PUBLIC RELEASE