A Comparison of Microstructure and Properties of Equivalent Strength Ingot Metallurgy and Powder Metallurgy 7XXX Aluminum Alloys.

Abstract

Microstructure and property relationships of equivalent strength ingot and powder metallurgy (I/M and P/M) 7XXX aluminum alloy die forgings were examined. Fatigue, toughness and corrosion behavior are discussed. Unlike the I/M product, the P/M material did not exhibit a reduction in S-N fatigue behavior in the transverse orientation. Since toughness anisotropy is not similarly dependent upon check initiation variables, no such anomaly occurred in this property. P/M material was more resistant to exfoliation corrosion in any condition of heat treatment than the most resistant heat treatment condition of the I/M material.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1981
Accession Number
ADA118280

Entities

People

  • Stephen H. Doerr

Organizations

  • Wright Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Chemical Synthesis
  • Chemistry
  • Electron Microscopes
  • Electron Microscopy
  • Materials
  • Materials Laboratories
  • Materials Science
  • Materials Testing
  • Measurement
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Microscopes
  • Microscopy
  • Tensile Strength
  • Test And Evaluation

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Metallurgy