A Comparison of Continuous SPD Processes for Improving the Mechanical Properties of Aluminum Alloy 6111

Abstract

Microstructure evolution, mechanical properties, formability, and texture development were determined for AA6111 samples processed by asymmetric rolling (ASR) with different roll friction, velocity, or diameters, conventional rolling (CR), and equal-channel-angular pressing (ECAP). Highly elongated or sheared grain structures were developed during ASR/CR and ECAP, respectively. ASR led to improved r-values and formability compared to CR primarily as a result of the development of moderate shear-texture components analogous to those developed during ECAP of billet material. ASR based on different roll diameters gave the best combination of strength, ductility, and formability.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2008
Accession Number
ADA490130

Entities

People

  • L. S. Toth
  • Martin Wolfgang Winkler
  • R. Lapovok
  • Sheldon Lee Semiatin

Organizations

  • Air Force Research Laboratory

Tags

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Alloys
  • Aluminum
  • Aluminum Alloys
  • Chemical Compounds
  • Crystallography
  • Diameters
  • Ductility
  • Friction
  • Materials
  • Materials Engineering
  • Materials Science
  • Mechanical Properties
  • Metals
  • Microstructure
  • Orientation (Direction)

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Mechanical Engineering/Mechanics of Materials.
  • Speech Processing/Speech Recognition.