Aluminum Alloy 7050 Extrusions.

Abstract

Practices for casting 25 and 35-inch diameter alloy 7050 ingot were developed; effects of fabricating variables on mechanical properties and corrosion characteristics were evaluated, and aging conditions were established to produce two tempers, T7651X and T7351X, having two combinations of strength, stress-corrosion characteristics, and toughness. Twenty extruded shapes were subsequently fabricated to provide material for determination of design mechanical properties, modulus of elasticity, stress-strain curves, fracture toughness (KIc), fatigue strengths, fatigue crack propagation rates, and stress- corrosion and corrosion characteristics. The alloy 7050 extrusions developed combinations of properties desired by the airframe industry that were superior to those of extrusions of commercially established aluminum alloys.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1977
Accession Number
ADB019780

Entities

People

  • Glenn E. Nordmark
  • J. D. Walsh
  • J. E. Jacoby
  • J. T. Staley
  • R. E. Davies

Organizations

  • Alcoa

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Manufacturing
  • Materials
  • Materials Science
  • Measurement
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Modulus Of Elasticity
  • Notch Toughness
  • Regression Analysis
  • Stress Corrosion
  • Stress Corrosion Cracking
  • Stress Strain Relations
  • Tensile Strength
  • Test And Evaluation

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Metallurgy