Accession Number : AD0758294

Title :   Evaluation of Compatible Titanium Alloys in Boron Filament Composites.

Descriptive Note : Final technical rept. 1 Dec 70-30 Nov 72,

Corporate Author : SOLAR SAN DIEGO CALIF

Personal Author(s) : Schmitz,Gunther K. ; Metcalfe,Arthur G.

Report Date : FEB 1973

Pagination or Media Count : 89

Abstract : Development of a compatible titanium alloy for boron reinforced composites was completed successfully with the alloy Ti-13V-10M0-5Zr-2.5Al (Ti 1310). Properties are typical for beta alloys. Reaction rates with boron were found to be in excess of values predicted from initial research work but are adequate for primary and secondary fabrication yet leave life available for long-term (e.g., 10,000 hour) service application at 1000F. Roll-bonded two-ply tape of 25 percent boron and three-ply press-bonded sheet of 27 percent boron showed rule-of-mixture elastic moduli with strengths corresponding to failure strains of 0.006 inch/inch. Typical fabrication parameters for press bonding are 1520 degrees F/16 ksi/30 minutes. Fabrication of roll-bonded tape is a Solar developed process using higher temperatures for much shorter times (approximately 1800 degrees F for 1 second). (Author Modified Abstract)

Descriptors :   (*COMPOSITE MATERIALS, *TITANIUM ALLOYS), BORON, COMPATIBILITY, VANADIUM ALLOYS, MOLYBDENUM ALLOYS, ZIRCONIUM ALLOYS, FILAMENTS, ALUMINUM ALLOYS, REACTION KINETICS, BONDING

Subject Categories : Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE