Ideal Fracture-Resistant Microstructures

Abstract

The main objective of this grant is to quantify the concept of ideal microstructures for fracture resistance. To approach this goal, a variety of steels and heat treatments was investigated. Of particular interest was the resistance of different steels to failure by shear instability, which is much less well understood than tensile instability. While some information on shear-crack initiation is available in the literature, evidence on shear-crack propagation is very limited and mainly confined to very tough steels. Keywords: Microstructures, Fracture resistance, Steel, Shear instability, Tensile instability.

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Document Details

Document Type
Technical Report
Publication Date
May 19, 1988
Accession Number
ADA197028

Entities

People

  • A. R. Rosenfield
  • J. P. Hirth
  • M. Manoharan
  • S. Raghavachary

Organizations

  • Battelle Memorial Institute

Tags

Communities of Interest

  • Air Platforms
  • Human Systems

DTIC Thesaurus Topics

  • Abstracts
  • Crack Propagation
  • Cracks
  • Fracture (Mechanics)
  • Heat Treatment
  • Instability
  • Literature
  • Materials
  • Mechanics
  • Microstructure
  • Military Research
  • Particle Size
  • Particles
  • Physical Metallurgy
  • Resistance
  • Scientists
  • Steel

Fields of Study

  • Engineering

Readers

  • Materials Science (Mechanical Engineering).
  • Nanocomposite Materials Science