Fracture Toughness Measurements of Three Titanium Alloy Extrusions

Abstract

nium alloy 11.5mo 4.5sn 6zrPlane strain static K sub (Ic) and dynamic, K sub (Id) measurements were obtained on three-inch-diameter titanium alloy extrusions which received a 5.9:1 reduction followed by air cooling. The alloys investigated were Ti-6Al-6V-2Sn, Ti-8Mo-8V-2Fe-3Al, and Ti-11.5Mo-6Zr-4. 5Sn (Beta III). Compact tension specimens were used to obtain K sub (Ic) measurements and precracked standard Charpy V-notched specimens were used to obtain K sub (Id) measurements. The highest K sub (Ic) and K sub (Id) values were obtained from the Beta III extrusion while the lowest K sub (Ic) and K sub (Id) values were obtained for the Ti-8Mo-8V-2Fe-3Al extrusion. Good agreement was found to exist between K sub (Ic) values obtained from precracked Charpy V- notch specimens and compact tension specimens.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1973
Accession Number
AD0766682

Entities

People

  • Thomas S. Desisto

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Agreements
  • Air Cooled
  • Grain Size
  • Heat Treatment
  • Materials
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Metals
  • Orientation (Direction)
  • Press Forging
  • Strain Rate
  • Tensile Properties
  • Tensile Strength
  • Titanium Alloys
  • Transverse
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Powder metallurgy of Titanium alloys.