The Effects of Growth Speed and Heat Treatment on Deformation of Aligned Ag3Mg-AgMg and Al-Ag2Al Eutectics

Abstract

Tensile properties of aligned Ag3Mg-AgMg and Al-Ag2Al eutectics were determined as a function of growth speed at temperatures between -196C and 300C. Strength of Ag3Mg-AgMg increases with decreasing spacing, lambda at all test temperatures, but the strength of Al-Ag2Al is more dependent on eutectic grain size. Ordering of the Ag3Mg phase increases the effectiveness of interphase boundaries as barriers to slip and increases the strength of Ag3Mg-AgMg. Aging treatments to produce gamma' in the Al-rich phase markedly increases strength of Al-Ag2Al. Fracture behavior of both alloys is discussed.

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Document Details

Document Type
Technical Report
Publication Date
Aug 31, 1972
Accession Number
AD0747310

Entities

People

  • N. S. Stoloff
  • R. H. Bellows
  • Y. G. Kim

Organizations

  • Rensselaer Polytechnic Institute

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Crystal Structure
  • Electron Microscopy
  • Eutectic Composites
  • Grain Boundaries
  • Grain Size
  • Heat Treatment
  • Low Temperature
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Plastic Flow
  • Scanning Electron Microscopy
  • Solid Solutions
  • Tensile Properties
  • Tensile Strength
  • Tensile Stress
  • Tensile Testing

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.

Technology Areas

  • Space