The Influence of Total Strain, Strain Rate and Reheating Time during Warm Rolling on the Superplastic Ductility of an Al-Mg-Zr Alloy.

Abstract

The effect of varying three processing variables on the superplastic ductility of an Al-10Mg-0.1Zr alloy was studied. The three variables investigated were: (1) time at temperature during warm rolling; (2) strain rate during rolling (by varying reduction per pass); and (3) total strain. After the material was warm rolled, samples were tension tested at 300 C and at strain rates varying from .0000667/S to .167/S. The greatest superplastic ductilities were achieved in material experiencing the largest total strain, lowest strain rate and most prolonged reheating time during warm rolling. The results are consistent with a model for structure development based on continuous recrystallization. Keywords: Superplastic, Ductility, Total strain, Strain rate, Reheat time, Continuous recrystallization.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1987
Accession Number
ADA183044

Entities

People

  • James E. Wise Ii

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Alloys
  • Aluminum Alloys
  • Creep
  • Electron Microscopy
  • Engineering
  • Grain Size
  • Magnesium Alloys
  • Materials
  • Materials Science
  • Mechanical Engineering
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Metallic Compounds
  • Metals
  • Plastic Explosives
  • Solid Solutions

Fields of Study

  • Materials science

Readers

  • Combustion and Flow Dynamics.
  • Environmental Engineering
  • Surface Engineering/Surface Coating Technology.