Fundamental Investigation of the Retrogression and Reaging (RRA) of Commercial Al-Base Alloys and Its Effect on Stress Corrosion Cracking.

Abstract

The microstructure of 7075 Al, aged to the T6 and T76 temper conditions, has been carefully characterized with respect to the nature of the precipitate phases that exist in the matrix and in grain boundaries, and the parameters associated with their dispersions. The microstructural changes that occur during various retrogression and retrogression and reaging heat-treatments have been thoroughly documented. The possible consequences of these latter heat treatments on the stress-corrosion susceptibility and yield strength of Al 7075 are discussed. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 26, 1982
Accession Number
ADA118553

Entities

People

  • A. J. Ardell
  • J. K. Park

Organizations

  • University of California, Los Angeles

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Aerospace Industry
  • Crystal Structure
  • Diffraction
  • Dispersion Hardening
  • Electron Microscopy
  • Hardening
  • Hardness
  • Heat Treatment
  • Hydrogen Embrittlement
  • Materials
  • Materials Science
  • Microscopy
  • Particle Size
  • Phase Transformations
  • Stress Corrosion
  • Stress Corrosion Cracking
  • Transitions

Fields of Study

  • Materials science

Readers

  • Game Theory.
  • Materials Science (Mechanical Engineering).
  • Powder metallurgy of Titanium alloys.