Accession Number : AD0613651

Title :   DEVELOPMENT OF TOUGH, HIGH-STRENGTH ALPHA-BETA TITANIUM BASE ALLOYS,

Corporate Author : ARMY MATERIALS RESEARCH AGENCY WATERTOWN MASS

Personal Author(s) : AYVAZIAN,Arthur M. ; Colton,Robert M.

Report Date : MAR 1965

Pagination or Media Count : 16

Abstract : The addition of varying weight percentages of the substitutional elements Cr, Mo, Mn, Ni, U, and Zr and the interstitial elements O. N, C, and B to the basic alloy, Ti-6Al-6V-2Sn-1/2Fe-1/4Cu, resulted in alloys which exhibited mechanical properties superior to those of the basic alloy. The optimum mechanical properties ranged from 198,000 psi yield strength at 0.1 percent offset, 205,000 psi tensile strength, 5 percent elongation, 14.0 percent reduction of area, and 5.4 ft-lb Charpy V-notch impact energy at -40 F for alloy Ti-6Al-6V-2Sn-1/2Fe-1/4Cu, to 221,000 psi yield strength at 0.1 percent offset, 224,000 psi tensile strength, 11.9 percent elongation, 32.1 percent reduction of area, and 5.9 ft-lb Charpy V-notch impact energy at -40 F for alloy Ti-6Al-6V-2Sn-3/4Cu-3Zr0.015N-0.114 02-0.00217H-0.12C. (Author)

Descriptors :   (*TITANIUM ALLOYS, SCIENTIFIC RESEARCH), ALUMINUM ALLOYS, VANADIUM ALLOYS, TIN ALLOYS, COPPER ALLOYS, IRON ALLOYS, ZIRCONIUM ALLOYS, IMPURITIES, BORON, DUCTILITY, TENSILE PROPERTIES, IMPACT SHOCK, MECHANICAL PROPERTIES, HEAT TREATMENT, ADDITIVES, TOUGHNESS

Distribution Statement : APPROVED FOR PUBLIC RELEASE