Investigation by Differential Scanning Calorimetry of Microstructure in a Superplastic Al-Mg-Zr Alloy.

Abstract

The three significant variables identified in thermomechanical processing of an A1-10Mg-0.1Zr alloy to obtain superplastic ductilities are reduction per pass, reheating time between passes, and total strain during warm rolling at 573K. The effect of adjusting these variables on elevated temperature mechanical properties has been evaluated and the microstructures characterized using transmission electron microscopy. Comparison of the differential scanning calorimetry results with mechanical property and microstructural data reveal that the endothermic energy absorbed by the material, which is related to microstructural stability, can be correlated with superplastic behavior.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1987
Accession Number
ADA184902

Entities

People

  • Donald L. Stewart Ii

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Alloys
  • Aluminum Alloys
  • Chemistry
  • Computer Programs
  • Electron Microscopes
  • Electron Microscopy
  • Engineering
  • Materials
  • Materials Science
  • Mechanical Properties
  • Metallurgy
  • Metals
  • Microscopy
  • Physical Metallurgy
  • Solid Solutions
  • Tensile Testing
  • Transmission Electron Microscopy

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.
  • Thermal Physics or Thermal Science.

Technology Areas

  • Microelectronics