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Dr. Ajit Roy |
Ajit K. Roy, Ph.D.
Associate Research Professor
Department of Mechanical Engineering
University of Nevada Las Vegas
Ph: (702) 895-1463
E-mail: aroy@unlv.edu
Education
· Ph.D., Metallurgical Engineering, Case Western Reserve University, Cleveland, OH, 1981
· M.Sc., Metallurgical Engineering, University of Aston, Birmingham, England, 1975
· B. E., Metallurgical Engineering, University of Calcutta, Calcutta, India, 1971
Areas of Specialization
| Metallurgical Engineering |
Mechanical Metallurgy
Physical Metallurgy
Alloy Development
Failure Analyses
Metallurgical Characterization
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| Corrosion Engineering |
Environment-Assisted Cracking
Localized Corrosion
Galvanic Corrosion
Electrochemical Principles |
Courses Offered
· Mechanical Metallurgy - MEG 732
· Corrosion Engineering - MEG 430/630
· Physical Metallurgy - MEG 450/650 (in preparation)
· Fractography & Failure Analyses - MEG 7XXX (in preparation)
Current Research Projects
. Principal Investigator, YMP Task-32, "Delayed Hydride Cracking of Spent Fuel Cladding under Repository Conditions." U.S. DOE Award Amount: $591,810.00 (for two years).
. Principal Investigator, AAA Task-4, "Hydrogen-Induced Embrittlement of Candidate Target Materials for Applications in Spallation-Neutron-Target Systems." U.S. DOE Award Amount: $287,885.00 (for two years).
. Principal Investigator, AAA Task-10, "Development of a Mechanistic Understanding of High-Temperature Deformation of Alloy EP-823 for Transmutation Applications." U.S. DOE Award Amount: $98,735.00 (for one year).
. Principal Investigator, AAA Task-14, "Use of Positron Annihilation Spectroscopy for Stress-Strain Measurements." U.S. DOE Award Amount: $154,439.00 (for one year).
Work Experience
. Associate Research Professor, UNLV-Mechanical Engineering Department
. Senior Advisory Engineer, Framatome ANP
. Senior Research Engineer, Mobil Research & Development Corporation
. Senior Engineer, Westinghouse-Bettis Atomic Power Laboratory
. Research Specialist, The Timken Company
Recent Publications
· A. K. Roy, et al., "Cracking of Titanium Alloys under Cathodic Applied Potential," Micron, Vol. 32, No. 2, Elsevier Science, February 2001, pp. 211-218.
· A. K. Roy, et al., "Stress Corrosion Cracking of Alloy C-22 and Ti Gr-12 using Double-Cantilever-
Beam Technique," Micron, Vol. 30, No. 6, Elsevier Science, December 1999, pp.649-654.
· A. K. Roy, et al., "Effect of Controlled Potential on SCC of Nuclear Waste Package Container
Materials," UCRL-JC-135596, October 1999, presented at Corrosion/2000 , Paper No. 00188,
March 2000, Orlando, FL.
· A. K. Roy, et al., "Stress Corrosion Cracking Evaluation of Candidate Container Alloys by DCB
Method," presented at Corrosion/2000, Paper No. 00189, March 2000, Orlando, FL.
· A. K. Roy, et al., "Localized Corrosion of Candidate Container Materials in Ferric Chloride Solutions,"
Submitted for publication in the Journal of Nuclear Materials, Elsevier Science.
· A. K. Roy, et al., "Environment-Assisted Cracking of Nuclear Waste Package Container Materials," presented at the 8th Int. Conf. On Nuclear Engineering , April 2000, Baltimore, MD.
· A. K. Roy et al., "Environment-Induced Degradation of Candidate Materials for the Waste Package,"
accepted for presentation and publication at Safewaste 2000, Montpellier Corum, France.
· A. K. Roy, et.al., "Stress Corrosion Cracking of Ni-Base and Ti Alloys under Controlled Potential," UCRL-JC-132511, February 1999, presented at the Seventh International Conference on Nuclear Engineering (ICONE-7) Paper No. ICONE-7048, JSME/ASME/SFEN, April 1999, Tokyo, Japan.
· A. K. Roy, et. al., "Galvanic Corrosion - Effect of Environmental and Experimental Variables," UCRL-JC-132374, February 1999, presented at Corrosion/99, Paper No. 465, April 1999, San Antonio, TX.
· A. K. Roy, et. al., "Localized Corrosion of Candidate Container Materials in Ferric Chloride Solutions," UCRL-JC-132146, October 1998, presented at Corrosion/99, Paper No. 463, April 1999, San Antonio, TX.
· A. K. Roy, et. al., "Initiation and Growth of Localized Attack in Nuclear Waste Package Materials," UCRL-JC-129068, November 1997, published in the Proceedings of the Sixth International Conference on Nuclear Engineering (ICONE-6) Paper No. ICONE-6014, ASME/JSME/SFEN, May 1998, San Diego, CA.
· A. K. Roy, et. al., "A Comparative Study of Alloys C-22 and 625," UCRL-JC-127355, August 1997, presented at the 1998 International High Level Radioactive Waste Management Conference, May 1998, Las Vegas, NV (Proceedings of the 8th Annual International Conference pp. 666-668).
· A. K. Roy, et. al., "Localized Corrosion Behavior of Candidate Nuclear Waste Package Container Materials," Materials Performance, Vol. 37, No. 3, NACE International, March 1998, pp. 54-58.
· A. K. Roy, et. al., "Galvanic Corrosion Study of Container Materials using Zero Resistance Ammeter," UCRL-JC-128475, November 1997, presented at Corrosion/98, Paper No. 156, March 1998, San Diego, CA.
· A. K. Roy, et. al., "Stress Corrosion Cracking of Fe-Ni-Cr-Mo, Ni-Cr-Mo, and Ti Alloys in 900C Acidic Brine," UCRL-JC-128477, November 1997, presented at Corrosion/98, Paper No. 157, March 1998, San Diego, CA.
· A. K. Roy., et. al., "Electromechanical and Metallographic Evaluation of Alloys C-22 and 625," LLNL Report UCRL-ID-127355, May 1997.
· A. K. Roy, et. al., "Effect of Environmental Variables on Localized Corrosion of High-Performance Container Materials," UCRL-JC-125329, January 1997, published in the Proceedings of the Fifth International Conference on Nuclear Engineering (ICONE-5), Paper No. ICONE5-2093, ASME/SFEN/JSME, May 1997, Nice, France.
· A. K. Roy, et. al., "Temperature and Potential Scan Rate Effects on Critical Pitting Potentials in Brines," UCRL-JC-126040 abs, December 1996, presented at the 191st Meeting of the Electromechanical Society, Inc., May 1997, Montreal, Canada (Meeting Abstracts Vol. 97-1, Abstract No. 129, pp. 150-151).
· A. K. Roy, et. al., "Effect of Chloride Concentration and pH on Pitting Corrosion of Waste Package Container Materials," UCRL-JC-123891, December 1996, presented at the 190th Meeting of the Electromechanical Society, Inc., October 1996, San Antonio, TX (Meeting Abstracts Vol. 96-2, Abstract No. 182, pp. 244-245).
· A. K. Roy, et. al., "Degradation Mode Survey - Galvanic Corrosion of Candidate Metallic Materials for High-Level Radioactive Waste Disposal Containers," LLNL Report UCRL-ID-125645, November 1996.
· A. K. Roy, et. al., "Localized Corrosion of Container Materials in Anticipated Repository Environments," UCRL-JC-122861, May 1996, presented at the 189th Meeting of the Electromechanical Society, Inc., May 1996, Los Angeles, CA (Meeting Abstracts Vol. 96-1, Abstract No. 85, pp. 112-113).
· A. K. Roy, et. al., "Electromechanical Corrosion Studies of Container Materials in Repository-Relevant Environments," LLNL Report UCRL-ID-122860, December 1995.
· A. K. Roy., et. al., "Pitting Corrosion of Container Materials in Anticipated Repository Environments," UCRL-JC-122572, November 1995, presented at the 1996 International High Level Radioactive Waste Management Conference, April-May 1996, Las Vegas, NV (Proceedings of the Seventh Annual International Conference, pp. 454-456).
· R. A. Van Konynenburg, R. D. McCright, A. K. Roy and D. A. Jones, "Engineered Materials Characterization Report for the Yucca Mountain Site Characterization Project," LLNL Report UCRL-ID-119564, vol. 1-3, August 1995.
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