Mechanical Characteristics of a Superplastic Aluminum-10.2%Mg-0.1%Zr Alloy.

Abstract

The elevated temperature mechanical characteristics of an aluminum-magnesium-zirconium alloy were studied. Thermomechanical processing consisted of solution treating and hot working at 440 C and then warm rolling at 300 C to 94% reduction. Subsequent treatments included annealing at 200 C for one hour, and recrystallizing for one minute at 440 C. Tensile testing of warm rolled, annealed, and recrystallized material was conducted at various strain rates and temperatures. The data was analyzed to determine strain-rate sensitivity coefficients and activation energies, in turn to be correlated with microstructural data concurrently obtained on this superplastic alloy. This material exhibits particularly good ambient properties in addition to the superplasticity. Originator supplied keywords include: Aluminum; Aluminum-Magnesium alloys, Creep models.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1985
Accession Number
ADA158959

Entities

People

  • T. S. Hartmann

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alloys
  • Creep
  • Data Reduction
  • Energy
  • Grain Size
  • Heat Of Activation
  • Heat Treatment
  • Materials
  • Materials Science
  • Mechanical Engineering
  • Mechanical Properties
  • Mechanical Working
  • Plastic Explosives
  • Plastic Properties
  • Solid Solutions
  • Strain Rate
  • Tensile Testing

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.