Fatigue Strength of Trip Steels.

Abstract

Comparison of the S-N curves of warm-extruded TRIP steels, heat treated to give two stabilities with respect to deformation-induced martensitic transformation during testing, reveals a beneficial effect of the transformation on fatigue behavior under stress control conditions. The proportionality of fatigue strength to ultimate tensile strength is maintained to higher strength levels relative to other steels. For a stress ratio of R = 0.1, a fatigue strength at 10 to the seventh power cycles of 180 ksi (1,240 MPa) is obtained. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1979
Accession Number
ADA078592

Entities

People

  • Gregory B. Olson
  • Morris Azrin
  • Richard Chait
  • Roger A. Gagne

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Austenite
  • Crack Propagation
  • Cracks
  • Crystal Structure
  • Diameters
  • Fatigue Life
  • Fatigue Tests (Mechanics)
  • Information Processing
  • Materials
  • Mechanical Properties
  • Mechanics
  • Military Research
  • New Jersey
  • Stainless Steel
  • Steel
  • Tensile Properties
  • Tensile Strength

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Powder metallurgy of Titanium alloys.