An Approach to Low Temperature High Strain Rate Superplasticity in Aluminum Alloy 2090

Abstract

Successful study of processing microstructural development and superplasticity in Al-Mg alloys has been extended to the Lithium-containing 2090 alloy. Attainment of superior superplastic response in the 2090 alloy has proven more difficult. Successive reductions in the temperature at which rolling was conducted have resulted in moderate improving to superplastic response. Modification to the rolling schedule has resulted in a continuously increasing strain rate during rolling while recovery temperature and rolling speed are unaltered from previous work. Keywords: Superplasticity.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1989
Accession Number
ADA212271

Entities

People

  • Michael W. Reedy

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Space

DTIC Thesaurus Topics

  • Aerospace Industry
  • Aluminum Alloys
  • Computer Programs
  • Electron Microscopy
  • Engineering
  • Grain Boundaries
  • Grain Size
  • Low Temperature
  • Mainframe Computers
  • Materials
  • Materials Engineering
  • Materials Science
  • Mechanical Properties
  • Mechanical Working
  • Microscopy
  • Modulus Of Elasticity
  • United States Naval Academy

Fields of Study

  • Materials science

Readers

  • Mathematics or Statistics
  • Powder metallurgy of Titanium alloys.