Fundamental Concepts Relating Local Atomic Arrangement Deformation and Fracture of Intermetallic Alloys

Abstract

The objective of this research program is to identify relationships between characteristics of intermetallic alloys at an atomic scale, the operation of slip and twinning deformation mechanisms at a microstructural scale, and bulk deformation and fracture properties. Our research focuses on two fundamental aspects of the problem of low toughness of intermetallic alloys: The role of deformation twinning in promoting ductility and toughness of ordered intermetallic alloys, and modeling the effect of dislocation characteristics on crack tip plasticity.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1990
Accession Number
ADA230541

Entities

People

  • Edgar A. Starke Jr.
  • John A. Wert

Organizations

  • University of Virginia

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Alloys
  • Availability
  • Classification
  • Crack Tips
  • Cracks
  • Crystal Structure
  • Crystals
  • Ductility
  • Elements
  • Engineering
  • Grain Boundaries
  • Materials
  • Materials Science
  • Security
  • Transition Metals

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).