Composition and Method for Producing an Aluminum Alloy Resistant to Environmentally-Assisted Cracking.

Abstract

The present invention relates generally to aluminum alloys and more particularly to high-strength, molybdenum-containing, powder-derived aluminum alloys which have improved resistance to environmentally assisted cracking at room or moderately elevated temperatures. High-strength aluminum alloys, such as those in the 7000 series (Aluminum Association designation), are used extensively for structural aircraft components because of their combined lightness of weight and high strength. Generally speaking, these high-strength aluminum alloys suffer from poor resistance to environmentally-assisted cracking. For instance, when under load and subjected to a corrosive environment such as the sea water environment, these alloys are susceptible to stress corrosion cracking.

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Document Details

Document Type
Technical Report
Publication Date
Oct 15, 1990
Accession Number
ADD015044

Entities

People

  • John J. Deluccia

Organizations

  • United States Department of the Navy

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircraft Equipment
  • Alloys
  • Aluminum Alloys
  • Corrosion
  • Environment
  • Hot Pressing
  • Hot Working
  • Inventions
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Molybdenum
  • Particle Size
  • Particles
  • Resistance
  • Stress Corrosion
  • Stress Corrosion Cracking

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Systems Analysis and Design