On the Dynamics of Dislocation Pinning During Dynamic Strain Aging.

Abstract

The recognized phenomena of dynamic strain aging are considered in terms of the dynamics of dislocation pinning by impurity atoms. It is assumed that dislocations become immobilized when their waiting time at a barrier, capable of being overcome with the aid of thermal activation, exceeds the time required to age or immobilize a dislocation. Qualitatively, it would appear that this hypothesis, originally proposed by McCormick to account for the temperature dependence of the initiation of serrations on a stress-strain curve, is basic to all DSA phenomena. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 25, 1973
Accession Number
AD0760574

Entities

People

  • R. E. Reed-hill

Organizations

  • University of Florida

Tags

DTIC Thesaurus Topics

  • Dislocations
  • Dynamics
  • Impurities
  • Mechanical Properties
  • Physical Properties
  • Stress Strain Relations

Readers

  • Materials Science and Engineering.