EFFECT OF NITROGEN ON STRESS CORROSION CRACKING OF AISI 304 STAINLESS STEEL IN HIGH-TEMPERATURE SULFATE SOLUTION

Slow strain rate tests were conducted on solution annealed and sensitized AISI 304 stainless steels with varying nitrogen and carbon contents. The tests were conducted in deaerated 0.1 M Na2SO4 at 250 degree C at a strain rate of 0.000002/s and an applied potential of 0 V sub H. For the sensitized SS containing 0.05 wt% carbon, susceptibility to intergranular stress corrosion cracking (IGSCC) decreased with nitrogen additions up 0.16 wt%. Scanning electron microscopy showed that a transition from IGSCC to transgranular stress corrosion cracking (TGSCC) occurred at greater nitrogen contents. Potentiodynamic polarization curves were identical for both the solution annealed and sensitized conditions, but the latter showed slightly greater densities. Nitrogen additions had no influence on anodic polarization characteristics. (Edited author abstract)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00109312
• Corporate Authors:

  National Association of Corrosion Engineers

  2400 West Loop South
  Houston, TX  United States  77027
• Authors:
  • Mozhi, T A
  • Nishimoto, K
  • Wilde, B E
  • Clark, WAT
• Publication Date: 1986-4

Media Info

• Features: References;
• Pagination: p. 197-203
• Serial:
  • CORROSION
  • Volume: 42
  • Issue Number: 4
  • Publisher: NACE International
  • ISSN: 0010-9312

Subject/Index Terms

• TRT Terms: Corrosion; Electron microscopy; Fracture mechanics; Nitrogen; Scanners; Sodium sulfate test; Stainless steel; Strain (Mechanics); Stress corrosion; Testing
• Uncontrolled Terms: Strain rate
• Old TRIS Terms: Intergranular corrosion; Scanning; Transgranular corrosion
• Subject Areas: Geotechnology; Highways; Materials; I34: Steels and Metals;

Filing Info

• Accession Number: 00459059
• Record Type: Publication
• Source Agency: Engineering Information, Incorporated
• Files: TRIS
• Created Date: Aug 31 1987 12:00AM