Durability and Damage Tolerance of Aluminum Castings

Abstract

A durability and damage tolerance property data base for D357-T6 and B201-T7 cast by three commercial foundries was developed. The specifications for the two alloys were selected based on the results of screening evaluations which are included in the first interim report published in September 1987. Tensile, fatigue, and fracture toughness properties were determined and microstructural and fractographic evaluations were conducted. The fatigue data (stress-life and crack growth rate) were used to calculate an equivalent initial flaw size for both alloys and will be used to assess the applicability of current DDT specifications to castings. Keywords: Aluminum castings; Mechanical properties; durability; Damage tolerance; Equivalent initial flaw size; Fatigue; Fracture toughness.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1988
Accession Number
ADA200066

Entities

People

  • G. R. Turk
  • M. W. Ozelton

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Contracts
  • Damage Tolerance
  • Databases
  • Death
  • Diffraction
  • Elements
  • Fatigue Tests (Mechanics)
  • Manufacturing
  • Materials
  • Mechanical Properties
  • Sensitivity
  • Stress Corrosion
  • Tensile Properties
  • Tensile Strength
  • Test And Evaluation
  • Test Methods
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Metallurgy
  • Reinforced Composite Materials