Accession Number : AD0435698

Title :   DEVELOPMENT OF A STABLE-BETA TITANIUM ALLOY.

Descriptive Note : Quarterly rept. no. 5, 1 July-30 Sep 63,

Corporate Author : TITANIUM METALS CORP OF AMERICA NEW YORK

Personal Author(s) : Hunter,D. B.

Report Date : 30 SEP 1963

Pagination or Media Count : 51

Abstract : Tensile and bend tests were performed on the three base alloys, Ti-17V-10Cr-3A1, Ti-8Mo-8V7.5Fe-3A1 and Ti-15Mo-5Fe-3A1, containing additions of up to 5% Cu, Ni and Co. Complete replacement of Cr of Fe by Cu in the base alloys resulted in brittleness upon aging at 900F. Addition of up to 1% Si to Ti-17V-10Cr-3A1 increased tensile strength but lowered ductility after aging. Investigation of two metastable beta alloys was undertaken in the compositional range Ti-17V-(1.5 to 4)Fe-3A1 and Ti-8Mo-8V-(1 to 3)Fe-3A1 by hardness and tensile tests, and of two compositional ranges of stable non-hardening beta alloys, Ti-17V-(10 to 12)Mn-3A1 and Ti-8Mo8V-(6 to 7)Fe-3A1, by tensile, bend and impact tests. These indicated that Ti-17V-4Fe-3A1 and Ti-8Mo-8V-1Fe-3A1 were the better metastable beta alloys, and Ti-17V-11Mn-3A1 and Ti-8Mo-8V-6Fe3A1 the preferable stable alloys. (Author)

Descriptors :   (*TITANIUM ALLOYS, MANUFACTURING), (*ALLOYS, TITANIUM ALLOYS), ALUMINUM ALLOYS, CHROMIUM ALLOYS, COPPER ALLOYS, COBALT ALLOYS, IRON ALLOYS, MANGANESE ALLOYS, MOLYBDENUM ALLOYS, VANADIUM ALLOYS, TENSILE PROPERTIES, DUCTILITY, BRITTLENESS, HARDNESS, SILICON ALLOYS, DISPERSION HARDENING, HEAT TREATMENT

Distribution Statement : APPROVED FOR PUBLIC RELEASE