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M. Vitek Materials Joining and NDE Group Materials Joining Group Materials Science & Technology Division P.O. Box 2008 Oak Ridge, TN 37831-6376 Phone: (865) 574-5061 Fax: (865) 574-4928 e-mail: vitekjm@ornl.gov |
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John M. Vitek
Materials Joining and NDE Group
Materials Joining Group
Materials Science & Technology Division
P.O. Box 2008
Oak Ridge, TN 37831-6376
Phone: (865) 574-5061
Fax: (865) 574-4928
e-mail: vitekjm@ornl.gov
Research Interests:
Dr. Vitek's research interests include the study of phase transformation behavior in a range of materials, including stainless steels, nickel-base superalloys, and aluminum alloys. His emphasis is on solidification behavior and solid-state transformation behavior in welded materials. Recent activities have included modeling of phase transformation behavior using computational thermodynamics and kinetics. His modeling activities have also included the application of artificial neural networks to welding problems, including weld pool shape prediction and improved ferrite number prediction. He has organized and served as proceedings editor for several international conferences. He has contributed to over 150 technical papers in the field of welding metallurgy and phase transformation behavior.
Education:
- 1973 Ph.D., Materials Science, Massachusetts Institute of Technology
- 1969 M.S., Materials Science, California Institute of Technology
- 1968 B.S., Materials Science, Massachusetts Institute of Technology Professional
Experience:
- 1980-present Senior Research Staff Member, Materials Joining and Nondestructive Testing Group, Metals & Ceramics Division, Oak Ridge National Laboratory
- 1992 Guest Scientist at Nippon Research Laboratories, Nippon Steel Corporation
- 1984-1985 Guest Scientist at Max Planck Institut fŸr Metallforschung
- 1976-1980 Research Scientist at Metals Research Laboratories, Olin Corporation
- 1973-1976 Post-doctoral researcher at Max Planck Institut fŸr Metallforschung
Awards and Honors:
- 2001 McKay-Helm Award
- 2000 Fellow, ASM-International
- 1998 Fellow, American WeldingSociety
- 1997 Elegant Work Prize, The Institute of Materials
- 1994 Co-author Citation for the Champion H. Mathewson Award, TMS
- 1991 Selected to participate in the Japan Key Technology Program as a visiting scientist
- 1991 Jacquet-Lucas Grand Prize, ASM-International and International Metallographic Society
- 1988 Martin Marietta Publications Award
- 1988 Jacquet-Lucas Grand Prize, ASM-International and International Metallographic Society
- 1987 Jacquet-Lucas Grand Prize, ASM-International and International Metallographic Society
- 1987 Outstanding Paper Award, Acta Metallurgica
Major Professional Activities:
- 1999 - present Advisory Board, ISIJ International
- 1998 Co-chairman and proceedings editor, 5th International Conference on Trends in Welding Research, Pine Mountain, Georgia
- 1997 - present Alloy Phase Diagram Committee, ASM-International
- 1997 - present Board of Review, Metallurgical Transactions A
- 1996 - present Editorial Board, Science and Technology of Welding and Joining Selected
Publications:
- J.M. Vitek, S.A. David, D.J. Alexander, J.R. Keiser, and R.K. Nanstad, "Low Temperature Aging Behavior of Type 308 Stainless Steel Weld Metal," Acta Metall. 39, 503-516 (1991).
- J.M. Vitek and S.A. David, "Prediction of Non-Equilibrium Solidification Modes," p. 153-167 in Laser Materials Processing IV, J. Mazumder, K. Mukherjee, and B.L. Mordike, eds., The Minerals, Metals, and Materials Society, Warrendale, PA (1994).
- J.M. Vitek, S.A. Vitek, and S.A. David, "Numerical Modeling of Diffusion-Controlled Phase Transformations in Ternary Systems and Application to the Ferrite-Austenite Transformation in the Fe-Cr-Ni System," Metall. and Mater. Trans. A 26A, 2007-2025 (1995).
- S.A. David, J.M. Vitek, S.S. Babu, L.A. Boatner, and R.W. Reed, "Welding of Nickel-Base Superalloy Single Crystals," Sci. Technol. of Welding & Joining 2(2), 79-88 (1997).
- J.M. Vitek, S.A. David, and L.A. Boatner, "Microstructural Development in Single Crystal Nickel-Base Superalloy Welds," Sci. Technol. of Welding & Joining 2(3), 109-118 (1997).
- J.M. Vitek and S.A. David, "Modeling the Ferrite-Austenite Transformation in the Heat-Affected Zone of Stainless Steel Welds," p. 321-331 in Mathematical Modelling of Weld Phenomena 4, Ed. H. Cerjak, Inst. of Materials, London (1998).
- J. M. Vitek, S. A. David, J. A. Johnson, H. B. Smartt and T. DebRoy, Editors, Trends in Welding Research, ASM-International, Materials Park, Ohio, 1999.
- J. M. Vitek, "Neural Networks Applied to Welding: Two Examples," ISIJ International 39(10), 1088-1095 (1999).
- J. M. Vitek, Y. S. Iskander and E. M. Oblow, "Improved Ferrite Number Prediction in Stainless Steel Arc Welds Using Neural Networks - Part 1: Neural Network Development ," Welding Journal 79(2), 33s-40s (2000).
- J. M. Vitek, Y. S. Iskander and E. M. Oblow, "Improved Ferrite Number Prediction in Stainless Steel Arc Welds Using Neural Networks - Part 2: Neural Network Results," Welding Journal 79(2), 41s-50s (2000).