EVALUATION OF INCONEL 718, AGE HARDENABLE NICKEL-CHROMIUM ALLOY

Abstract

Tests were conducted to investigate fabrication characteristics of . 048 inch and .250 inch thick Inconel 718. Evaluations were made in the following areas: Formability (Brake Forming, Uniform Elongation in eight inches, and Guerin and Impact Rubber Forming, and Dimple Forming); Resistance Welding, Fusion Butt Welding, and TIG Spot Welding. Total elongation and uniform elongation tests indicated good formability characteristics of the alloy in the annealed condition. A minimum bend radius of .031 inch was attained when bending specimens perpendicular to the rolling direction; a .047 inch minimum bend radius was obtained when specimens were bent parallel to the rolling direction. Guerin Rubber Forming and Impact Rubber Forming methods were used to form .048 inch specimens on a stretch flange radius of 6.05 inches and a shrink flange radius of 9.95 inches. The specimens were formed around a .090 inch bend radius.

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Document Details

Document Type
Technical Report
Publication Date
Dec 10, 1963
Accession Number
AD0425059

Entities

People

  • Gorman Morris

Organizations

  • McDonnell Aircraft Corporation

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acids
  • Air Force
  • Butt Welding
  • Elongation
  • Fabrication
  • Fusion Welding
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Nitric Acid
  • Production
  • Resistance
  • Tensile Strength
  • Test And Evaluation
  • Welding
  • Welds
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Metallurgy