17-4PH stainless steel was investigated for its fracture and stress corrosion cracking properties under both open circuit and cathodically coupled conditions. Established fracture mechanics test and interpretation procedures were used to determine the suitability of this material for use in the marine environment. The material was found to be sensitive to environmental cracking processes to such a degree that the characteristic K(Iscc) values for the conditions of cathodic coupling were extremely low for materials in the strength range of interest. Evidence of crack growth was found on the fractured surfaces of test specimens of 17-4PH steel. The conclusions of this investigation were that brittle fracture is not a problem for 17-4PH, but environmental crack growth is expected to cause maintenance problems for structures designed for long life. (Modified author abstract)

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  • Corporate Authors:

    Naval Research Laboratory

    4555 Overlook Avenue, SW
    Washington, DC  United States  20375-5320
  • Authors:
    • Judy, RWJ
    • Fujii, C T
    • Goode, R J
  • Publication Date: 1973-12-18

Media Info

  • Pagination: 24 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00057243
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • ISBN: ZF54-544
  • Report/Paper Numbers: NRL-7639 Final Rpt.
  • Files: TRIS
  • Created Date: Aug 28 1974 12:00AM