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Staff

Steven J. Pawel

Research Staff
Corrosion Science & Technology Group
Materials Science & Technology Division
Oak Ridge National Laboratory
P.O. Box 2008
Oak Ridge, TN 37831-6156
Phone: (865) 574-5138
email:
pawelsj@ornl.gov

 

Education:

  • Ph.D. in Metallurgical Engineering (University of Tennessee, June 1987)
  • Dissertation: The Role of Nitrogen in the Localized Corrosion Resistance of Cast Duplex
  • Stainless Steels
  • MS in Metallurgical Engineering (University of Tennessee, June 1983)
  • Thesis: The Sensitization Behavior of Cast Duplex Stainless Steels Subjected to Weld Repair
  • BS in Metallurgical Engineering (University of Tennessee, June 1980); minor in chemistry

Experience:

Development Staff Member (1994-present) in the Metals and Ceramics Division of Oak Ridge National Laboratory; current interests and responsibilities:

  • liquid metal compatibility studies
    • thermal gradient mass transfer, fatigue, and cavitation for design and maintenance of the Spallation Neutron Source target
    • Li and Na/NaK compatibility studies for fusion energy and space power systems
  • Hydrogen Delivery programs
    • member of DOE delivery tech team
    • manager of ORNL pipeline delivery projects
  • compatibility studies with ethanol and related biofuels
  • corrosion studies for the pulp and paper industry
    • electrochemical noise examination of digester corrosion
    • stress-assisted corrosion/cracking of boiler tubes (water-side corrosion)
  • chemical process corrosion and failure analysis across Oak Ridge Installations

Development Staff Member (1987-1994) in the Development Division of the Oak Ridge Y-12 National Security Complex; primary responsibilities included:

  • long term research in liquid metal and molten salt corrosion programs
  • material selection and chemical process corrosion control
  • long term immersion studies for high performance coatings/linings
  • systems analysis/specification and procedure review/implementation
  • failure analysis across Oak Ridge installations
  • technical support of technology transfer initiatives

Recent Publications (Last Three Years of Open Literature):

  1. S. J. Pawel and L. K. Mansur, “Cavitation-Erosion Resistance of 316LN Stainless Steel in Mercury Containing Metallic Solutes,” J. Nucl. Mater., 377 (2008) 174-181.
  2. S. R. Sherman, D. F. Wilson, and S. J. Pawel, “NHI Component Technical Readiness Evaluation System,” Proceedings of the 2007 GLOBAL Advanced Nuclear Fuel Cycles and Systems Symposium, Boise, ID, September 2007.
  3. S. J. Pawel, “Assessment of End-of-Life Behavior of the Surface Modification to Improve Cavitation-Erosion Resistance in the Mercury Target at the Spallation Neutron Source,” Oak Ridge National Laboratory Technical Memorandum ORNL/TM-2007/063, June 2007.
  4. S. J. Pawel, “Comparison of Cavitation-Erosion Resistance of Carburized and Carburized-plus-Nitrided 316LN Stainless Steel in Mercury,” Oak Ridge National Laboratory Technical Memorandum ORNL/TM-2007/058, May 2007.
  5. S. J. Pawel, “Assessment of Cavitation-Erosion Resistance of Potential Pump Impeller Materials for Mercury Service at the Spallation Neutron Source,” Oak Ridge National Laboratory Technical Memorandum ORNL/TM-2007/033, March 2007.
  6. S. J. Pawel and L. K. Mansur, “Evaluation of Cavitation-Erosion Resistance of 316LN Stainless Steel in Mercury Containing Metallic Solutes,” Oak Ridge National Laboratory Technical Memorandum ORNL/TM-2006/539, August 2006. [Also in publication for Journal of Nuclear Materials.]
  7. G. B. Sarma, S. J. Pawel, and P. M. Singh, “Modeling the Effect of Attachment Welds on Stress-Assisted Corrosion in Recovery Boiler Tubes,” NACE CORROSION2006, Paper #06240, San Diego, CA, March 2006.
  8. S. J. Pawel, “Assessment of Cavitation-Erosion Resistance of 316LN Stainless Steel in Mercury as a Function of Surface Treatment,” J. Nucl. Mater., 343 (2005) 101-115.
  9. G. B. Sarma and S. J. Pawel, “Modeling of Recovery Boiler Tube Wall Panels to Investigate the Effect of Attachment Welds on Stress-Assisted Corrosion,” Proceedings of the 2005 TAPPI Engineering, Pulping, and Environmental Conference, Philadelphia, PA, August 2005.
  10. S. J. Pawel, A. W. Willoughby, H. F. Longmire, and P. M. Singh, “An Experience with Detection and Assessment of SAC in a Recovery Boiler,” NACE CORROSION2004, Paper #04517, New Orleans, LA, April 2004.
  11. S. J. Pawel, et al., “Correlation of Process Data and Electrochemical Noise to Assess Kraft Digester Corrosion: Second Year at Spring Grove,” Oak Ridge National Laboratory Technical Memorandum ORNL/TM-2004/187, April 2004. [Also in Proceedings, TAPPI 2004 Spring Technical and International Environmental Conference, Atlanta, March 2004.]
  12. S. J. Pawel, “Use of Electrochemical Noise to Assess Corrosion in Kraft Continuous Digesters,” Oak Ridge National Laboratory Technical Memorandum ORNL/TM-2004/187, March 2004.
  13. S. J. Pawel, and E. T. Manneschmidt, “Preliminary Evaluation of Cavitation Resistance of Type 316LN Stainless Steel in Mercury Using a Vibratory Horn,” J. Nucl. Mater., 318 (2003) 122-131.
  14. S. J. Pawel, J. R. DiStefano, and E. T. Manneschmidt, “Thermal Gradient Mass Transfer of Type 316L Stainless Steel and Alloy 718 in Flowing Hg,” J. Nucl. Mater, 296 (2001) 210-218.