DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click HERE
to register or log in.
High Strength Eutectic Composites.
Final rept. 1 Jan 71-31 Mar 74,
CALIFORNIA UNIV LOS ANGELES SCHOOL OF ENGINEERING AND APPLIED SCIENCE
Pagination or Media Count:
Fiberlike Ti-Ti5Ge3 eutectic composites were produced by electron-beam floating zone-melting. The volume fraction of the germanide fiber in the Ti-Ti5Ge3 eutectic mixtures was increased from 19.5 to 34 in agreement with theoretical predictions. The effects of freezing rate and temperature on the mechanical properties of the Ti Ti5Ge3 eutectic composites was investigated. It was found that the room temperature compression strength and tensile modulus were 325,000 psi and 26.5 x 10 to the sixth power psi. At temperatures less than 400C the average tensile strength was 160,000 psi. These properties were superior to any known commercial titanium alloys. The creep and fracture behaviors of these eutectic composites were studied as functions of freezing rate and temperature. In general, these behaviors were in good agreement with those reported from artificially-made fiber-reinforced metal matrix composites. Modified author abstract
APPROVED FOR PUBLIC RELEASE