High Strength Eutectic Composites.

Abstract

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)

Document Details

Document Type
Technical Report
Publication Date
Mar 31, 1974
Accession Number
AD0776412

Entities

People

  • Alfred S. Yue

Organizations

  • University of California, Los Angeles

Tags

DTIC Thesaurus Topics

  • Agreements
  • Composite Materials
  • Electron Beams
  • Eutectic Composites
  • Freezing
  • Mechanical Properties
  • Metal Matrix Composites
  • Tensile Modulus
  • Tensile Properties
  • Tensile Strength
  • Titanium
  • Titanium Alloys
  • Transition Temperature
  • Zone Melting

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Powder metallurgy of Titanium alloys.
  • Reinforced Composite Materials

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers
  • Microelectronics