Mechanical Properties, Including Fracture Toughness and Fatigue, Corrosion Characteristics and Fatigue-Crack Propagation Rates of Stress-Relieved Aluminum Alloy Hand Forgings

Abstract

Except for a few tests, the tensile, compressive, shear and bearing properties were determined for all but three of a total of forty 2014-T652, 2024-T852, 7075-T7352 and 7079-T652 hand forgings scheduled for test. Ratios among these properties were calculated. Plane-strain fracture-toughness values were determimed for two of the hand forgings. The results of axial-stress fatigue tests (R = 0.0) of smooth specimens are presented. The preparation of specimens for the stress-corrosion and exfoliation tests was initiated. Tests of the 6x24-in. 2014-T652 hand forging are in progress to study the effects of notch geometry, specimen length and stress on the rate of fatigue crack propagation.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1968
Accession Number
AD0849129

Entities

People

  • C. F. Babilon
  • D. J. Brownhill
  • D. O. Sprowls
  • Glenn E. Nordmark

Organizations

  • Alcoa

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Alloys
  • Aluminum
  • Aluminum Alloys
  • Contracts
  • Corrosion
  • Crack Propagation
  • Cracks
  • Fatigue Tests (Mechanics)
  • Geometry
  • Materials
  • Mechanical Properties
  • Orientation (Direction)
  • Plastic Explosives
  • Stress Corrosion
  • Stress Corrosion Cracking
  • Tensile Properties
  • Toughness

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Mechanical Engineering/Mechanics of Materials.
  • Metallurgy