DEVELOPMENT OF HIGH-STRENGTH ALLOYS BY CRYOGENIC STRETCH-FORMING.

Abstract

The computer program has developed new expressions for room-temperature aged and unaged true ultimate tensile strengths (TUTS). The analysis on cryogenic tensile strength predictions was less successful. Chemical analyses of heats under study include computer-optimized chemistries, Cb-Al additions, Co-Mo additions, airmelted and vacuum-melted material. Tensile test data reveal significant modification in strengths and ductility by Cb-Al or Co-Mo additions. The Cb-Al heat displayed high aging response in addition to high strain response, reaching a room-temperature TUTS of 350,000 psi after aging. Vacuum-melted heats show a reduced response to aging as compared to air-melted material. It appears that factors, such as phosphorus, sulfur, and gas content, have a major effect on age response. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 09, 1963
Accession Number
AD0422933

Entities

People

  • Martin S. Miller

Tags

DTIC Thesaurus Topics

  • Chemical Analysis
  • Chemistry
  • Computer Programs
  • Computers
  • High Strength Alloys
  • Materials
  • Materials Science
  • Mechanical Properties
  • Mechanical Working
  • Stretch Forming
  • Tensile Strength

Fields of Study

  • Materials science

Readers

  • Computational Modeling and Simulation
  • Metallurgy