Electrochemical Considerations of Crack Growth in the Ferrous Alloys

Abstract

Environmentally assisted crack growth in ferrous alloys in aqueous environments is multifaceted problem of technological importance. Recent studies of electrochemical reactions with bare metal surfaces and of crack growth response have provided a clear demonstration of electrochemical reaction control of crack growth in steels. These studies also showed the importance of localized transient reactions with bare metal surfaces at the crack tip and the need for a new approach to the measurement of electrochemical reaction kinetics. In this paper, a framework is outlined for the identification and modeling of crack growth response in aqueous environments in terms of the underlying chemical processes. This framework serves as a basis for fundamental understanding, and for the rotational interpretation and utilization of crack growth data. Environmental effects; Fracture mechanics; Crack growth; Corrosion fatigue; Stress corrosion cracking; Electro-chemistry; Corrosion; Modeling; Steels.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1988
Accession Number
ADA203811

Entities

People

  • Robert P. Wei

Organizations

  • Lehigh University

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Chemical Engineering
  • Chemical Reactions
  • Chemistry
  • Crack Tips
  • Cracks
  • Electrochemical Reactions
  • Engineering
  • Ferrium
  • Frequency
  • Hydrogen Embrittlement
  • Iron Alloys
  • Materials
  • Materials Science
  • Mechanics
  • Stress Corrosion
  • Stress Corrosion Cracking
  • Surface Reactions

Readers

  • Materials Science (Mechanical Engineering).
  • Materials Science and Engineering.
  • Theoretical Analysis.