Mechanism of Fatigue Enhancement in Selected High Strength Aluminum Alloys.

Abstract

The initial phase of an investigation concerned with the mechanism of fatigue enhancement in selected high strength/weight aluminum alloys was completed. Data indicates that in both X7080-T7 and X 7050, aluminum alloys fatigue enhancement is related to unique microstructures. In the case of the X7080 Al alloy it is the presence of aligned light etching regions and in the X 7050 alloy, it is the directional proliferation of precipitates predominately at grain boundaries. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 10, 1971
Accession Number
AD0738450

Entities

People

  • Ronald E. Trabocco

Organizations

  • Naval Air Warfare Center Warminster

Tags

DTIC Thesaurus Topics

  • Alloys
  • Aluminum
  • Aluminum Alloys
  • Boundaries
  • Directional
  • Grain Boundaries
  • Microstructure
  • Precipitates

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Nanofabrication and Microfabrication.
  • Structural Health Monitoring of Composite Structures.