THE EFFECT OF PLASTIC STRAIN RATE ON DIFFUSION IN ALUMINUM-ZINC ALLOYS,

Abstract

The effect of compressive strain-rate on interdiffusion and zinc self-diffusion in aluminum-zinc alloys has been investigated. At a strain rate of 0.0002/sec, the interdiffusion coefficient is increased by factors of 20, 13, and 8 at 375, 415, and 450C respectively. At comparable strain rates, little enhancement of self-diffusion is detected. Quasi-hydrostatic pressure causes the interdiffusion coefficient to decrease much more than predicted theoretically. Factors are suggested which could account for the results, but existing uncertainties preclude a precise interpretation. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1960
Accession Number
AD0690600

Entities

People

  • B .l. Averbach
  • G. A. Bruggeman
  • M. Cohen

Organizations

  • Massachusetts Institute of Technology

Tags

DTIC Thesaurus Topics

  • Alloys
  • Aluminum
  • Coefficients
  • Diffusion
  • Elements
  • Hydrostatic Pressure
  • Metals
  • Strain Rate
  • Uncertainty
  • Zinc
  • Zinc Alloys

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Mechanical Engineering/Mechanics of Materials.
  • Thin Film Deposition Science.