EFFECT OF CORROSION ON THE FATIGUE BEHAVIOR OF 2024-T4 ALUMINUM ALLOY

Abstract

An investigation was conducted to determine the effect of corrosion pitting on the fatigue behavior of 2024-T4 aluminum alloy and to establish a method of measuring pitting corrosion daage wih respect to fatigue. Surface roughness measurements were used to give a useful indication of the fatigue life that may be expected from a corroded structural member of 2024-T4 aluminum. The effect of pre-existing corrosion on the mechanism of fatigue was determined to be largely that of a stress raiser. In the case of pitting corrosion, calculaions could be made, based upon critical pit measurements, to determine the stress concentration effect of the corrosion pit. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1961
Accession Number
AD0268569

Entities

People

  • Clayton L. Harmsworth

Tags

Communities of Interest

  • Advanced Electronics
  • Weapons Technologies

DTIC Thesaurus Topics

  • Alloys
  • Aluminum
  • Aluminum Alloys
  • Engineering
  • Environment
  • Fatigue Life
  • Fatigue Tests (Mechanics)
  • Materials
  • Measurement
  • Normal Distribution
  • Roughness
  • Standards
  • Statistical Analysis
  • Stress Concentration
  • Stresses
  • Surface Properties
  • Surface Roughness

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Structural Health Monitoring of Composite Structures.