Fracture and Fatigue of Diffusion, Adhesive, and Roll Bonded Aluminum, Titanium, and Ultrahigh Carbon Steel Laminates.

Abstract

The fracture characteristics of twelve different diffusion bonded Al/Al, Ti/Ti and Ultrahigh Carbon Steel/Iron and adhesively bonded Al/Epoxy laminates were evaluated. The effects of periodic overloads on the fatigue crack retardation behavior in a roll bonded Al/Al laminate was also investigated. Specific systems investigated included: diffusion bonded 7475 Al/1100 Al, 7475 Al/6061 Al, 7075 Al/1100 Al, 7075 Al/7072 Al, Ti-6Al-4V/Commercially Pure Ti, and Ultrahigh Carbon Steel/Interstitial Free Iron; adhesively bond 7475 Al/FM73M and 7075 Al/FM73M; and roll bonded 7475 Al/1100 Al. It was found that all laminates with Al primaries exhibited substantially higher critical fracture toughness in the crack divider orientation than the corresponding baseline monolithic plate alloys.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1978
Accession Number
ADA058553

Entities

People

  • Robert M. Johnson

Organizations

  • Vought

Tags

Communities of Interest

  • Air Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Carbon Steels
  • Chemical Analysis
  • Chemistry
  • Composite Materials
  • Epoxy Laminates
  • Fabrication
  • Hardness
  • Heat Treatment
  • Laminates
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Mechanical Working
  • Mechanics
  • Plastic Explosives

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Powder metallurgy of Titanium alloys.
  • Reinforced Composite Materials