The Effects of Powder Metallurgical Processing and Intermediate Thermal Mechanical Treatment on the Fatigue Properties of High Strength Aluminum Alloys.

Abstract

The application of advanced metallurgical processing techniques, e.g., intermediate thermomechanical treatment (ITMT) and powder metallurgy (P/M), has produced a recrystallized X7091 P/M alloy having fine grain and particle structures and weak texture with the best overall mechanical properties compared to those of ingot metallurgical and conventional P/M alloys. The dependence of mechanical properties on grain size and particle distribution has been demonstrated among these alloys. The study of the effect of the last microstructural feature, crystallographic texture, is necessary for further property improvement through texture control.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1983
Accession Number
ADA130790

Entities

People

  • E. A. Starke Jr.
  • Hongrok Chang
  • Victor Kuo

Organizations

  • Georgia Tech

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aluminum
  • Aluminum Alloys
  • Crack Propagation
  • Crack Tips
  • Cracks
  • Grain Boundaries
  • Grain Size
  • Heat Energy
  • Heat Treatment
  • Materials
  • Mechanical Properties
  • Metallurgy
  • Particles
  • Powder Metallurgy
  • Powders
  • Resistance
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.