An Electron Microscope Study of Configurational Equilibrium at Twin-Grain Boundary Intersections in FCC Metals.

Abstract

A transmission electron microscopy study of 304 stainless steel thin films was undertaken in order to completely characterize twin boundary-grain boundary intersection systems in fcc metals. The degrees of freedom associated with each grain boundary were determined and their interrelationships with grain boundary energy and associated torques were systematically investigated. A geometric configurational theory was developed to explain the existence of interfacial torques at twin boundary-grain boundary intersections and the verification of the physical existence of these torques was obtained. The origin, as well as the effects of torques on the twin boundary-grain boundary intersection system, were determined, and high- and low-torque values were defined. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1971
Accession Number
AD0732382

Entities

People

  • Lawrence E. Murr
  • Richard J. Horylev

Organizations

  • University of Southern California

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Crystal Structure
  • Electron Microscopes
  • Electron Microscopy
  • Electrons
  • Grain Boundaries
  • Microscopes
  • Microscopy
  • Stainless Steel
  • Thin Films
  • Transmission Electron Microscopy

Readers

  • Control Systems Engineering.
  • Fluid Dynamics.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).

Technology Areas

  • Microelectronics