Aluminum Matrix Controlled Eutectics.

Abstract

Controlled eutectic Al-Si ingots were grown. Under the growth conditions of the investigation, it was necessary to raise the silicon content from 11.7 to 15.4 weight percent to eliminate aluminum dendrites. Fibrous, flake, and complex lamellar structures were observed in these ingots and appear to be a function of growth parameters and composition. Improvements in equipment and experimental technique will be necessary to provide more uniform growth speed, reduce oxidation, and insure homogeneity in composition. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1971
Accession Number
AD0726424

Entities

People

  • Marshall K. Thomas
  • Ronald E. Trabocco

Organizations

  • Naval Air Warfare Center Warminster

Tags

DTIC Thesaurus Topics

  • Aluminum
  • Castings
  • Chemical Reactions
  • Chemistry
  • Elements
  • Eutectics
  • Group 13 Elements
  • Homogeneity
  • Materials Science
  • Metallurgy
  • Oxidation
  • Structural Components

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.