INVESTIGATION OF TOUGHNESS OF ALUMINUM MAGNESIUM WELDMENTS

Abstract

The response of cold worked 5,000 series aluminum alloys to the heat of welding shows that softening is a time-dependent phenomenon in terms of strength distributions, although this is not reflected in hardness distributions. In weld metal and in heat affected zones, generally the effect of increasing strain rate up to impact levels was to increase yield strength, decrease tensile strength, and markedly decrease elonga tion and toughness. Subsequent passes in 5,000 series aluminum alloy weds do not improve the properties of prior deposits. Elongation and toughness are higher in weld metal which has not been heat affected by subsequent passes.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1963
Accession Number
AD0409793

Entities

People

  • C. M. Adams Jr.

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Counter WMD
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aluminum Alloys
  • Energy
  • Heat Treatment
  • Magnesium Alloys
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • New York
  • Physical Metallurgy
  • Plastic Properties
  • Strain Rate
  • Stress Strain Relations
  • Stresses
  • Tensile Properties
  • Tensile Strength
  • Test And Evaluation
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Metallurgy