Accession Number : AD0617565

Title :   TITANIUM ALLOY DEVELOPMENT FOR DEEP DIVING SUBMARINE PROGRAM.

Descriptive Note : Final rept.,

Corporate Author : REACTIVE METALS PRODUCTS NILES OHIO

Personal Author(s) : Seagle,S. R. ; Bertea,O.

Report Date : 01 NOV 1963

Pagination or Media Count : 57

Abstract : The beta stabilizers Cu, Fe, V, Mo and Co were added to a Ti-7Al-3Cb base composition in order to increase the yield strength while maintaining statisfactory impact properties. For each beta stabilizer, the amount added was the estimated maximum solubility near room temperature and the maximum soluble in the alpha phase at any temperature. Ingots of these compositions along with the Ti-7Al-3Cb were made by the standard cold wall consumable electrode process. The ingots were fabricated to 0.5 in plate using temperatures below the beta transus except for the initial ingot reduction. The plates were evaluated after an alpha phase anneal and after a beta phase anneal. The stability of the annealed plates was measured by testing after a 1000F-1Hr-AC heat treatment. The testing consisted of room temperature tensile tests and impact tests at -80F and +32F. The effects of the additives and the effect of processing on the tensile and impact properties are discussed. (Author)

Descriptors :   (*TITANIUM ALLOYS, TENSILE PROPERTIES), (*SUBMARINES, TITANIUM ALLOYS), NIOBIUM ALLOYS, ALUMINUM ALLOYS, MICROSTRUCTURE, HEAT TREATMENT, CASTINGS, ADDITIVES, COPPER, IRON, VANADIUM, MOLYBDENUM, COBALT, METAL PLATES, PRESSURE VESSELS, SUBMARINE HULLS

Distribution Statement : APPROVED FOR PUBLIC RELEASE