Corrosion and Transport Processes in Cracks

Abstract

A numerical method for solving the electrochemical transport equations subject to an arbitrary set of charge-transfer boundary conditions is presented. The method is based on a two-dimensional time-dependent formulation of the equations derived from dilute solution theory. It is applied to a study of corrosion and transport processes in crack-like regions. The results show that the average species fluxes normal to the metal-electrolyte interface, the crack length, and the crack aspect ratio are the most important factors affecting the electrolyte composition. Other factors, such as the crack shape, the form of the boundary conditions, and the transport mode, also affect the composition; but, these factors are of secondary importance.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1971
Accession Number
AD0724326

Entities

People

  • R. R. Shuck

Organizations

  • Carnegie Mellon University

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical

DTIC Thesaurus Topics

  • Boltzmann Equation
  • Chemical Kinetics
  • Chemical Reactions
  • Chemistry
  • Computer Programs
  • Computers
  • Difference Equations
  • Differential Equations
  • Diffusion Coefficient
  • Electrochemical Reactions
  • Geometry
  • Materials
  • Oxide Films
  • Phase
  • Plastic Explosives
  • Sodium Compounds
  • Stress Corrosion

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Fluid Dynamics.
  • Structural Health Monitoring of Composite Structures.