ANELASTICITY CAUSED BY DEBRIS DIPOLES IN PLASTICALLY STRAINED CRYSTALS,

Abstract

AS screw dislocations move through crystals they leave numerous edge dislocation dipoles in their wakes. This debris was observed in a broad variety of crystals including LiF; MgO; NaC1; Si; Fe; Zn; and Al. It plays an important role in strain-hardening; deformation band formation; steady-state creep; and probably in fatigue and other fracture processes. Here it will be argued that it also may account for the low-temperature internal friction peaks that appear following the plastic deformation of crystals. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1962
Accession Number
AD0282025

Entities

People

  • J. J. Gilman

Organizations

  • Brown University

Tags

DTIC Thesaurus Topics

  • Creep
  • Dislocations
  • Friction
  • Hardening
  • Internal Friction
  • Low Temperature
  • Mechanical Properties
  • Plastic Deformation
  • Steady State
  • Strain Hardening

Readers

  • Materials Science and Engineering.
  • Mechanical Engineering/Mechanics of Materials.
  • Theoretical Analysis.