GC TESTS OF WELDS IN TI-13V-11CR-3A1 ALLOY SHEETS FROM COMPANY A AND GC TESTS OF AGE-STRENGTHENED BASE METAL AND OF WELDS IN TI-6A1-4V AND TI-13V-11CR- 3A1 ALLOY SHEETS FROM COMPANY F-SUMMARY REVIEW OF FRACTURE TOUGHNESS RESULTS ON TITANIUM ALLOYS BEING CONSIDERED FOR SOLID-PROPELLANT ROCKET MOTOR CASES

Abstract

Several conditions of welds in all-beta Ti-13V11Cr-3Al alloy were examined for fracture toughness properties. Similar tests were run on agestrengthened base metal and on annealed welds in samples from another source representing Ti-6Al4V and Ti-13V-11Cr-3Al alloys. The results were included in a summary review of fracture toughness in base metal and in welds of both alloys. At a yield strength to density ratio of approximately one million in., there appeared to be no serious fracture toughness problems with Ti-6Al4V alloy. Under similar conditions, the all-beta base metal (Ti-13V-11Cr-3Al) had somewhat less than optimum fracture toughness so that a construction practice practically eliminating flaws in finished cases would be required. In the allbeta welds, some practices appeared to give satisfactory toughness.

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Document Details

Document Type
Technical Report
Publication Date
Mar 30, 1962
Accession Number
AD0273711

Entities

People

  • H.e. Romine

Organizations

  • Naval Surface Warfare Center Dahlgren Division

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Ballistics
  • Base Metal
  • Creep
  • Fast Fractures
  • Grain Size
  • Heat Treatment
  • Materials
  • Mechanical Working
  • Propellants
  • Rocket Engines
  • Solid Propellants
  • Strength Weight Ratio
  • Terminal Ballistics
  • Test And Evaluation
  • Titanium Alloys
  • Virginia
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Aerospace Engineering
  • Metallurgy