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Collaborations |
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Recent |
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Ohio State University, Department of Materials Science and
Engineering Research on Novel Dissimilar
Joints Between Alloy 800H and 2.25%Cr and 1%Mo Steel with Professor Wei
Zhang. Lehigh University, Department
of Materials Science and Engineering Research on welding and
grain growth with Professor John DuPont. University West, Production
Technology Department, Sweden Research on welding with
Professors Lars-Erik Svensson and Leif Karlsson. Indian Institute of Technology,
Department of Mechanical Engineering, Bombay, India Professor Amitava De is a long term
collaborator on many research projects. Professor De is a frequent
visitor to our department. Cambridge University,
Department of Materials Science and Metallurgy, UK Research on Friction Stir
Welding with Professor Harry Bhadeshia, partial
funding through the award of a Distinguished Visiting Fellowship of Royal
Academy of Engineering, UK, to Dr. DebRoy. National Research Institute for
Metals (NIMS), Tsukuba, Japan Research on keyhole mode
welding with Dr. S. Tsukamoto. Long standing collaboration
with Los Alamos, Oak Ridge, Sandia and Lawrence Livermore Welding research involving
numerical simulation of welding. |
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Los
Alamos National Laboratory |
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Selected papers: H. L. Wei, S. Pal, V. Manvatkar, T. J. Lienert, and
T. DebRoy, Asymmetry in steel welds with dissimilar amounts of sulfur, Scripta Materialia, 2015, vol.
108, pp. 88-91. T. J. Lienert,
P. Burgardt, K. L. Harada, R. T. Forsyth, and T.
DebRoy, Weld bead center line shift during laser welding of austenitic
stainless steels with different sulfur content, Scripta
Materialia, 2014, vol. 71, pp. 37-40. Rai, P. Burgardt,
J. O. Milewski, T. J. Lienert
and T. DebRoy, Heat Transfer and Fluid Flow during Electron Beam Welding of
21Cr-6Ni-9Mn Steel and Ti-6Al-4V Alloy, Journal of Physics D, 2009, vol. 42,
article # 025503. S. Mishra, T. J. Lienert, M. Q. Johnson and T. DebRoy. An Experimental and
Theoretical Study of Gas Tungsten Arc Welding of Stainless Steel Plates with
Different Sulfur Concentrations, Acta Materialia, 2008, vol. 56(9), pp. 2133-2146. R. Nandan,
T. J. Lienert and T. DebRoy, Toward Reliable
Calculations of Heat and Plastic Flow During Friction Stir Welding of
Ti-6Al-4V Alloy, International Journal of Materials Research, 2008, vol.
99(4), pp. 434-444. R. Nandan,
G. G. Roy, T. J. Lienert and T. DebRoy,
Three-Dimensional Heat and Material Flow during Friction Stir Welding of Mild
Steel, Acta Materialia,
2007, vol. 55, pp. 883-895. |
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Lawrence
Livermore National Laboratory |
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Selected papers: R. Rai, T.A. Palmer, J.W. Elmer
and T. DebRoy, Heat Transfer and Fluid Flow during Electron Beam Welding of
304L Stainless Steel Alloy, Welding Journal, 2009, vol. 88(3), pp. 54s-61s. J. W. Elmer, T. A. Palmer, W.
Zhang and T. DebRoy, Time Resolved X-Ray Diffraction Observations of Phase
Transformations in Transient Arc Welds, Science and Technology of Welding and
Joining, 2008, vol. 13(3), pp. 265-277. R. Rai, J. W. Elmer, T. A.
Palmer and T. DebRoy, Heat Transfer and Fluid Flow during Keyhole Mode Laser
Welding of Tantalum, Ti-6Al-4V, Stainless Steel and Vanadium, Journal of
Physics D, 2007, vol. 40, pp. 5753-5766. G. G. Roy, J. W. Elmer and T.
DebRoy, Mathematical Modeling of Heat Transfer, Fluid Flow and Solidification
during Linear Welding with a Pulsed Laser Beam, Journal of Applied Physics,
2006, vol. 100(3), article #034903. X. He, J. Elmer and T. DebRoy,
Heat Transfer and Fluid Flow in Laser Microwelding,
Journal of Applied Physics, 2005, vol. 97, article# 84909. A. Kumar, S. Mishra, J. W.
Elmer and T. DebRoy, Optimization of
Johnson Mehl Avarami
Equation Parameters for a-Ferrite to g-Austenite Transformation in Steel
Welds using a Genetic Algorithm, Metal. Mater. Trans. A, 2005, vol. 36A, pp.
15-22. |
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Sandia
National Laboratory |
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Selected papers: S. V. Prasad, T. K. Renk, P. G. Kotula and T.
DebRoy, Synthesis of Nanocomposite Thin Films with Self-assembled Structures
by Pulsed Ion Beam Ablation of MoS2 Target, Materials Letters, 2011, vol.
65(1), pp. 4-6. X. He, J. T. Norris, P. W. Fuerschbach, and T. DebRoy, Liquid Metal Expulsion during
Laser Spot Welding of 304 Stainless Steel, Journal of Physics D: Applied
Physics, 2006, vol. 39 (3), pp. 525-534. X. He, T. DebRoy and P. Fuerschbach, Composition Change of Stainless Steel during
Micro-joining with Short Laser Pulse, Journal of Applied Physics, 2004, vol.
96(8), pp. 4547-4555. X. He, T. DebRoy and P. Fuerschbach, Probing Temperature during Laser Spot
Welding from Vapor Composition and Modeling, Journal of Applied Physics,
2003, vol. 94(10), pp. 6949-6958. X. He, P. Fuerschbach
and T. DebRoy, Alloying Element Vaporization during Laser Spot Welding of
Stainless Steel, Journal of Physics D: Applied Physics, 2003, vol. 36(23),
pp. 3079-3088. X. He, P. W. Fuerschbach and T. DebRoy, Heat Transfer and Fluid Flow
during Laser Spot Welding of 304 Stainless Steel, Journal of Physics, D: Applied
Physics, 2003, vol. 36, pp. 1388-1398. |
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Oak
Ridge National Laboratory |
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Selected papers: S. A. David, R. Trivedi, M. E. Eshelman, J. M. Vitek, S. S. Babu, T. Hong and T. DebRoy, Observation of Weld Pool
Solidification using Transparent Metal-Analog Systems, Journal of Applied
Physics, 2003, vol. 93(8), pp. 4885-4895. T. Hong, T. DebRoy, S. S. Babu, and S. A. David, Modeling of Inclusion Growth and
Dissolution in the Weld Pool, Metallurgical and Materials Transactions, B,
2000, vol. 31B, pp. 161-169. S. S. Babu,
S. A. David, J. M. Vitek, K. Mundra
and T. DebRoy, Model for Inclusion Formation in Low Alloy Steels, Science and
Technology of Welding and Joining, 1999, vol. 4, no. 5, pp. 276-284. K. Mundra,
T. DebRoy, S. S. Babu, and S. A. David, Weld Metal Microstructure
Calculations from Fundamentals of Transport Phenomena in the Arc Welding of
Low Alloy Steels, Welding Journal, 1997, vol. 76, no. 4, pp. 163s-171s. T. DebRoy and S. A. David,
Physical Processes in Fusion Welding, Reviews of Modern Physics, 1995, vol.
67, No. 1, pp. 85-112. S. S. Babu,
S. A. David, K. Mundra, and T. DebRoy, Development
of Macro- and Microstructures of Low Alloy Steel Welds - Inclusion Formation
in the Welding of Low Alloy Steels, Materials Science and Technology, 1995,
vol. 11, pp. 186-199. S. A. David and T. DebRoy,
Current Issues and Problems in Welding Science, Science, 1992, vol. 257, pp.
497-502. |