Crevice Corrosion and Environmentally Assisted Cracking of High-Strength Duplex Stainless Steels in Simulated Concrete Pore Solutions

Abstract

This paper presents a study of crevice corrosion and environmentally assisted cracking (EAC) mechanisms in UNS S32205 and S32304 which were cold drawn to tensile strengths of approximately 1300 MPa. The study utilized a combination of electrochemical methods and slow strain rate testing to evaluate EAC susceptibility. UNS S32205 was not susceptible to crevice corrosion in stranded geometries at Cl concentrations up to 1.0 M in alkaline and carbonated simulated concrete pore solutions. UNS S32304 did exhibit a reduction in corrosion resistance when tested in a stranded geometry. UNS S32205 and S32304 were not susceptible to stress corrosion cracking at Cl concentrations up to 0.5 M in alkaline and carbonated solutions but were susceptible to hydrogen embrittlement with cathodic overprotection.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2021
Accession Number
AD1145688

Entities

People

  • David G. Nino
  • Kimberley E. Kurtis
  • Lawrence F. Kahn
  • Preet M. Singh
  • Robert D. Moser
  • Zackery B. Mcclelland

Organizations

  • Georgia Tech
  • University of Arkansas

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemistry
  • Concrete
  • Construction
  • Corrosion Resistance
  • Engineering
  • Engineers
  • Hydrogen Embrittlement
  • Materials
  • Materials Science
  • Measurement
  • Prestressed Concrete
  • Resistance
  • Stainless Steel
  • Standards
  • Strain Rate
  • Stress Corrosion
  • Stress Corrosion Cracking
  • Tensile Strength
  • Test Methods

Readers

  • Materials Science and Engineering.