INVESTIGATION AND OPTIMIZATION OF HIGH STRENGTH ALLOYS FOR CRYOGENIC STRETCHFORMING.

Abstract

Several specimens of commercially available 301 were cryogenically stretched, fatigue cracked, and tested, in order to establish proper test procedures. This heat was shown to be very tough, with notch ratios close to 1. Uniaxial specimens were then fabricated from nine residual heats of material. The specimens from two heats were cryogenically prestrained, fatigue cracked, aged, and tested. A set of four heats of material was ordered. This initial procurement was for two straight 301 heats, and two Co-Mo heats. The biaxial test fixture design was completed and reviewed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 31, 1965
Accession Number
AD0615629

Entities

People

  • Roger Mcdonough

Tags

DTIC Thesaurus Topics

  • Alloys
  • High Strength Alloys
  • Materials
  • Optimization
  • Procurement
  • Residuals
  • Test Fixtures

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Metallurgy