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Journal of Materials Engineering

, Volume 9, Issue 2, pp 151–156 | Cite as

Importance of microstructure in determining environmental susceptibility of stainless steels

  • P. Sadler
  • N. C. Pruitt
  • T. S. Sudarshan
  • M. R. Louthan
Article

Abstract

Weight loss and stress corrosion studies on ASTM A304 stainless steels subjected to different degrees of cold working and exposed to magnesium chloride solutions at different pH levels revealed that environmental resistance is a sensitive function of microstructure. Slip bands are preferential regions of attack in cold worked structures, while sensitization alters the crack path to follow the grain boundaries. The similarities in the relative susceptibility of the various microstructural features under conditions of general corrosion, stress corrosion, and hydrogen embrittlement suggests that any mechanism that is developed must be able to comprehensively explain the observed phenomena under all three forms of environmental degradation.

Keywords

Austenitic Stainless Steel Stress Corrosion Stress Corrosion Crack Slip Band Crack Path 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    B.F. Brown,Corrosion, Vol. 26, No. 8, pp. 249–250, 1982.Google Scholar
  2. 2.
    M.J. Povich and P. Rao,Corrosion, Vol. 34, p. 269, 1978.Google Scholar
  3. 3.
    A.J. West and M.R. Louthan, Jr.,Metallurgical Transactions A, Vol. 13A, p. 1049, 1982.Google Scholar
  4. 4.
    R.C. Wasielewski and M.R. Louthan, Jr.,Microstructure and Metallography, Edited by Northwood, White and Vandevoort, American Society for Metals, 1985.Google Scholar
  5. 5.
    J.B. Terrell, M.S. Thesis, Virginia Polytechnic Institute and State University, 1982.Google Scholar
  6. 6.
    C.L. Briant and A.M. Ritter,Metallurgical Transactions A, Vol. 12A, p. 910, 1981.CrossRefGoogle Scholar
  7. 7.
    G. Sandoz, C.T. Fujii, and B.F. Brown,Corrosion Science, Vol. 10, p. 839, 1970.CrossRefGoogle Scholar
  8. 8.
    P. Muraledharan, H.S. Khatak, J.B. Gnanamoorthy, and P. Rodriguez,Metallurgical Transactions, Vol. 16A, pp. 285–289, 1985.Google Scholar
  9. 9.
    N.C. Pruitt, Jr., M.S. Thesis, Virginia Polytechnic Institute, December 1983.Google Scholar
  10. 10.
    M.A. Streicher and A.J. Sweet,Corrosion, Vol. 25, p. 1, 1969.Google Scholar
  11. 11.
    G.R. Caskey Jr., Environmental Degradation of Engineering Materials in Hydrogen, Editors M.R. Louthan, Jr., R.P. McNitt, and R.D. Sisson, Virginia Polytechnic Institute and State University, p. 283, 1981.Google Scholar
  12. 12.
    C.L. Briant,Hydrogen Effects in Metals, AIME, p. 527, 1981.Google Scholar
  13. 13.
    H.E. Hänninen,Environment Sensitive Cracking of Austenitic Stainless Steels, Ph.D. Thesis, Laboratory of Physical Metallurgy, Helsinki University of Technology, 1980.Google Scholar
  14. 14.
    J. Chene,Journal of Microscopy, Sp. Elect., Vol. 4, p. 37, 1979.Google Scholar

Copyright information

© Springer-Verlag New York Inc. 1987

Authors and Affiliations

  • P. Sadler
    • 1
  • N. C. Pruitt
    • 1
  • T. S. Sudarshan
    • 1
  • M. R. Louthan
    • 1
  1. 1.Department of Materials EngineeringVirginia Polytechnic Institute and State UniversityBlacksburg

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