DUCTILITY LIMITATIONS OF ALUMINUM-SILICON ALLOYS.

Abstract

The relation between microstructure and mechanical properties of cast 356 type aluminum alloys was studied to determine the cause of the variations in properties resulting from differences in solidification rate. It was found that variations in strength are a consequence of variations in ductility and that ductility is inversely proportional to the dendrite cell size. A mechanism is proposed to account for this correlation based on the fracture strain of the interdendritic silicon particles, and the differential strain across dendrite cell boundaries. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 19, 1966
Accession Number
AD0638926

Entities

People

  • S. Frederick
  • W. A. Bailey

Organizations

  • Douglas

Tags

DTIC Thesaurus Topics

  • Alloys
  • Aluminum
  • Aluminum Alloys
  • Boundaries
  • Cell Size
  • Ductility
  • Elements
  • Mechanical Properties
  • Metalloids
  • Microstructure
  • Particles
  • Physical Properties
  • Silicon
  • Silicon Alloys
  • Solidification

Fields of Study

  • Materials science

Readers

  • Fluid Dynamics.
  • Powder metallurgy of Titanium alloys.