Accession Number:

AD0425059

Title:

EVALUATION OF INCONEL 718, AGE HARDENABLE NICKEL-CHROMIUM ALLOY

Descriptive Note:

Final rept.

Corporate Author:

MCDONNELL AIRCRAFT CORP ST LOUIS MO

Personal Author(s):

Report Date:

1963-12-10

Pagination or Media Count:

51.0

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.

Subject Categories:

  • Properties of Metals and Alloys
  • Couplers, Fasteners and Joints

Distribution Statement:

APPROVED FOR PUBLIC RELEASE