MINOR ALLOY ADDITIONS TO ALUMINUM ALLOY MELTS,

Abstract

Results of tensile tests on beryllium and sodium treated aluminum alloys, with high iron impurity, are presented. The yield strength of 195-T6 alloy, 0.64% iron, is increased 30% by a 0.02% beryllium addition. Cast-to-size tensile bars from degassed and beryllium treated melts exhibit approximately 29,000 psi. yield strength, 43,000 psi. tensile strength,a nd 4% elongation. A small quantity of beryllium, (0.05% addition), slightly improves the tensile strength and elongation of 356-T6 alloy, 0.65% iron, but does not appreciably effect the yield strength. Gradual decline in yield strength and rise in elongation is observed with increase in beryllium additions to 40E alloy, 0.58% iron, in heat-treated conditions. Mechanical properties of aluminum-silicon alloys356 and A356 - were not improved by sodium treatment preceded by beryllium additions to degassed melts. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 26, 1963
Accession Number
AD0434214

Entities

People

  • R. B. Miclot

Tags

DTIC Thesaurus Topics

  • Alloys
  • Aluminum
  • Aluminum Alloys
  • Beryllium
  • Elongation
  • Impurities
  • Mechanical Properties
  • Physical Properties
  • Strength (Mechanics)
  • Tensile Strength
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Mathematics or Statistics
  • Metallurgy