THE EFFECT OF CONCURRENT STRAINING AND A 1-PERCENT MAGNESIUM ADDITION ON THE RECOVERY BEHAVIOR OF ALUMINUM

Abstract

The effect of elastic strain, concurrent creep strain, and a 1% Mg addition on the recovery behavior of a high-purity Al was investigated. The degree of recovery of the prestrained test material was measured in terms of tensile flow stress at room temperature after recovery treatments between 80 and 200 C. Recovery behavior under no-load conditions was evaluated for the 99.995% Al and the Al-1% Mg alloy. The effect of concurrent elstic strain and creep straining duing recovery of 99.995% Al was also studied. The activation energy for recovery of the 99.995% Al between 80 and 200 C was found to be 23,300 +- 2,000 cal/mole, and the activation energy for the Al-1% Mg alloy was 27, 500 cal/mole. Concurrent elastic strain was concluded to have no effect on the rate of recovery of the 99.995% Al in terms of flow stress, but concurrent creep straining had a significant effect. The activation energy of the recovery process was not significantly different as a result of concurrent creep straining.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1961
Accession Number
AD0268438

Entities

People

  • C. L. Meyers
  • J. L. Lytton
  • T. E. Tietz

Organizations

  • Lockheed Martin Missiles and Space

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Creep
  • Crystal Structure
  • Crystals
  • Government Procurement
  • Grain Size
  • Magnesium Alloys
  • Materials
  • Measurement
  • Mechanical Properties
  • Plastic Explosives
  • Single Crystals
  • Solid Solutions
  • Stress Strain Relations
  • Tensile Properties
  • United States
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Marine Ecotoxicology
  • Materials Science (Mechanical Engineering).
  • Materials Science and Engineering.