Indian Institute of Technology Kharagpur |

Research on iron & Steel Processing: Alternative routes of iron making using RHF: One of the major research interests of the author is towards selecting operating parameters based on rigorous experiments in laboratory scale RHF and process models and subsequently scale it up to pilot scale. The author has demonstrated the significant effect of the shapes of pre-fabricated iron ore coal composite pellet on the iron nugget formation at RHF. Attempts is being made to enhance the heat and mass conductance of the thicker bed by tailoring size, shape distribution of pellets, additives etc. A MoS sponsored SDF project of worth 54 lakhks has been completed and recently and MHRD-MoS-ASP sponsored UAY project (worth 741 lakhs) is ongoing on the pilot scale RHF setup at ASP, Durgapur, SAIL for processing Iron ore and coal fines of Indian origin.
Another prime area of research of the author is on reduction and control of NMI in steel. Rigorous characterization of NMI in steel, and its control by controling operating parameters in upstream processing of steel are aimed in this project, which has been formulated in collaboration between IIT Kgp-HEC-DHI as a part of CoE on advanced manufacturing at IIT Kharagpur. The author has also collaboration with Vizag steel, and WMG, UK towards inclusion control in steel.
The author is also involved seriously in Welding Research. The author has been instrumental as one of the PIs in developing an indigenous Electron Beam Welding (EBW) setup at IIT Kharagpur in collaboration with BARC & BRNS. The author has worked intensely with the research group at Pennsylvania State University, to develop an indigenous CFD code for fusion welding for steels. The author is also working with WMG, UK towards understanding evolution of welding defects during EBW.

All Publications

Three-dimensional Heat and Material Flow during Friction Stir Welding of Mild Steel Nandan R., Linert T. J., Roy G. G., Debroy T. By Acta. Materialia 55 883-895 (2007)
Influence of burner nozzle configuration, and inlet gas composition on combustion, gas dynamics, temperature and concentration profile in a rotary hearth furnace Saleem S., Roy G. G. By Ironmaking & Steelmaking 1-13 (2020)
Effect of beam oscillation on electron beam welding of copper with AISI-304 stainless steel Kar J., Roy S. K., Roy G. G. By Journal of Materials Processing Technology 233 174-185 (2016)
Mathematical modeling of heat transfer, fluid flow and solidification during linear welding with a pulsed laser beam Roy G. G., Elmer J. W., Debroy T. By Journal of Applied Physics 100 1-7 (2006)
3D imaging and quantification of porosity in electron beam welded dissimilar steel to Fe-Al alloy joints by X-ray tomography Dinda S. K., Warnett J. M., Williams M. A., Roy G. G., Srirangam P. By Materials & Design 96 224-231 (2016)
An Improved Model of Cored Wire Injection in Steel Melts Sanyal S., Chandra S. , Kumar S. , Roy G. G. By ISIJ International 44 1157-1166 (2004)
Efficacy and recovery of calcium during CaSi cored wire injection in steel melts Basak S., Dhal R. K., Roy G. G. By Ironmaking & Steelmaking 37 161-168 (2010)
Effect of Amount of Carbon on the Reduction Efficiency of Iron Ore-Coal Composite Pellets in Multi-layer Bed Rotary Hearth Furnace (RHF) Mishra S., Roy G. G. By Metallurgical & Materials Transaction B 47B 2347-2356 (2016)
Application of genetic Algorithm (GA) to estimate the rate parameters for solid state reduction of iron ore in presence of graphite Chowdhary G. M., Roy G. G. By Computational Materials Science 45 176-180 (2009)
In situ Observation of Calcium Oxide Treatment of Inclusions in Molten Steel by Confocal Microscopy Khurana B., Spooner S. , Rao M. , Roy G. G. By Metallurgical and Materials Transactions B 48 1409-1415 (2017)

Completed Projects

Principal Investigator

Charge for XRD and FESEM at DHI CoE AMT
Development of Rotary Hearth Furnace Technology for Treating Off Grade Iron Ore Fines of Indian Origin Including Magnetite Ore (UAY_I_IITKGP_018)
Exploring the potential of rare earth elements (REE) as inclusion modifier towards the production of inclusion-critical special-grade low carbon micro-alloyed steel
Laser-Assisted Additive Manufacturing of Steel (LAMS)

Co-Principal Investigator

Exploring Solutions for Various Technological Challenges in Metal Additive Manufacturing Technology and Sharing the Relevant Know-how with Indian Heavy Engineering Industries Bharat Heavy Electricals Limited (BHEL)
Exploring Solutions for Various Technological Challenges in Metal Additive Manufacturing Technology and Sharing the Relevant Know-how with Indian Heavy Engineering Industries Department of Heavy Industries (DHI)
Selection of Raw Materials for Additive Manufacturing Applications in Relation to the Design Requirements; and Life Cycle Analysis of Additive Manufacturing Process for Different Materials Department of Heavy Industries (DHI)
Selection of Raw Materials for Additive Manufacturing Applications in Relation to the Design Requirements; and Life Cycle Analysis of Additive Manufacturing Process for Different Materials TATA SONS PRIVATE LIMITED

Alumni members

Ph. D. Students

Aakash Rathore

Area of Research: Advanced Joining of Materials

Aryan

Area of Research: Exergy analysis of steelmaking processes

Ashish Agrawal

Area of Research: Alternative Routes of Ironmaking

Banty Kumar

Area of Research: Alternative Routes of Ironmaking

Deepak Kumar Sahu

Area of Research: Waste utilization of steel plant

Jeetendra Kumar Singh

Area of Research: Advanced Joining of Materials

Lin Prakash P. S.

Area of Research: deformation of electron beam welded titanium sheets

Nachiketa Yadav

Area of Research: Inclusion evolution and control during forging in Steel

Parth Khandelwal

Area of Research: Structure-Property Correlation of Metallic Solids Developed by Laser Additive Manufacturing

Pradeepchandkopila

Area of Research: Estimation and prediction of Residual stress in electron beam welded steel samples

Raj Kumar Yadav

Area of Research: steelmaking

Shaik Saida

Area of Research: Extractive Metallurgy

Shaik Salam Basha

Area of Research: lase & electron beam welding of dissimilar materials

Shailesh Priyadarshi

Area of Research: Reduction kinetics of iron ore coal composite pellets in Rotary hearth Furnace

Vasundhara Singh

Area of Research: Physical Metallurgy

Book Chapter/Section

Role of numerical simulations in weld analysis Das D., Jaypuria S. , Gupta S. , Kundu A. , Pratihar D. K., Roy G. G. By HOW2020 - (Accepted/In-Press)
Electron beam welding: current trends and future scopes Kundu A., Jaypuria S. , Pratihar D. K., Roy G. G., Das D. By HOW2020 - (Accepted/In-Press)
Role of numerical simulations in weld analysis Das D., Jaypuria S., Gupta S., Kundu A., Pratihar D.K., Roy G.G. By Handbook of Welding: Processes, Control and Simulation 351-368 (2021)

Journal

Hot Deformation Behavior of EN30B Forged Steels in the Presence of Non-metallic Inclusions Singh V., Srirangam P. , Chakrabarti D. , Roy G. G. By Journal of Materials Engineering and Performance 1-13 (2023)
Effect of Beam Oscillation on Microstructure and Mechanical Properties of Electron Beam Welded EN25 Steel Singh V., Srirangam P., Roy G.G. By Materials 16 - (2023)
Effect of Beam Oscillation on Microstructure and Tensile Property of Electron Beam-Welded Commercially Pure (CP) Titanium Singh J.K., Roy G.G., Majumdar J.D. By Transactions of the Indian Institute of Metals 76 465-472 (2023)
Modeling of beam divergence Das D., Pratihar D.K., Roy G.G. By Optik 256 - (2022)
The Role of Slag Carryover on the Non-metallic Inclusion Evolution and Magnetic Behavior in Electrical Steel Kamaraj A., Murugaiyan P., Mandal G.K., Roy G.G. By Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science 53 1989-2003 (2022)
Quantification and analysis of slag carryover during liquid steel tapping from BOF vessel Kamaraj A., Mandal G.K., Shanmugam S.P., Roy G.G. By Canadian Metallurgical Quarterly 61 202-215 (2022)
Study of micro-porosity in electron beam butt welding Das D., Dinda S.K., Das A.K., Pratihar D.K., Roy G.G. By International Journal of Advanced Manufacturing Technology 121 4583-4600 (2022)
Uniaxial tensile deformation behaviour of electron beam welded commercially pure titanium and Ti6Al4V joints: Experimental and metallurgical characterization Lin Prakash P.S., Rakshit R., Mandal S., Roy G.G., Panda S.K. By Journal of Manufacturing Processes 76 444-456 (2022)
Study on micro-porosity in electron beam butt welding Das D., Dinda S. K., Das A. K., Pratihar D. K., Roy G. G. By International Journal of Advanced Manufacturing Technology - - (2022)
Effect of beam oscillation on microstructure, defect density, and resistivity of electron beam welded niobium Singh J.K., Roy G.G., Prakash P.N., Rai A., Manna I., Kanjilal D., Dutta Majumdar J. By Welding in the World 66 2483-2495 (2022)
Role of beam oscillation on electron beam welded zircaloy-4 butt joints Nayak L.J., Roy G.G. By Science and Technology of Welding and Joining 26 478-486 (2021)
Exergy and CO2 emission analysis of rotary hearth furnace-electric arc furnace routes of steelmaking Kumar B., Roy G.G., Sen P.K. By International Journal of Exergy 36 280-297 (2021)
Effect of beam oscillation on electron beam butt welded dual-phase (DP600) steel to 5754 aluminum alloy joints Dinda S. K., Das D. , Mohan A. , Srirangam P. , Roy G. G. By Metallurgical & Materials Transaction A - (2021)
Effect of Beam Oscillation on Electron Beam Butt Welded Dual-Phase (DP600) Steel to 5754 Aluminum Alloy Joints Dinda S.K., Das D., Mohan A., Srirangam P., Roy G.G. By Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 52 1723-1731 (2021)
Correlating the weld bead's macro-, micro-features with the weld pool's fluid flow for electron beam welded SS201 plates Das D., Bal K. , Pratihar D. K., Roy G. G. By International Journal of Mechanical Sciences 210 106734- (2021)
Effect of different forms of carbon on the reduction behaviour of iron ore-carbonaceous material composite pellets in multi-layer bed rotary hearth furnace (RHF) Priyadarshi S., Mishra S., Kumar B., Roy G.G. By Canadian Metallurgical Quarterly 60 281-293 (2021)
Effect of heat input on microstructure, mechanical and corrosion properties of electron beam welded zircaloy-4 sheets Nayak L.J., Roy G.G. By Welding in the World 65 987-1005 (2021)
Effect of non-metallic inclusions (NMI) on crack formation in forged steel Singh V., Bharat B. , Roy G. G., Srirangam P. By Materials Today: Proceedings 41 1096-1102 (2021)
Meta-heuristic algorithms-tuned Elman vs, Jordan recurrent neural networks for modeling of electron beam welding process Das D., Das A. K., Rudrapal A. , Jaypuria S. , Pratihar D. K., Roy G. G. By Neural Processing Letters - (2021)
Weld optimisation Das D., Jaypuria S., Pratihar D.K., Roy G.G. By Science and Technology of Welding and Joining 26 181-195 (2021)
Texture mapping in electron beam welded dissimilar copper-stainless steel joints by neutron diffraction Dinda S.K., Kar J., Roy G.G., Kockelmann W., Srirangam P. By Vacuum 181 - (2020)
Input-output modeling and multi-objective optimization of weld attributes in EBW Das A. K., Das D. , Jaypuria S. , Pratihar D. K., Roy G. G. By The Arabian Journal for Science and Engineering - (2020)
Modelling of BOF/Electric Steel making process for energy optimization Sen P. K., Roy G. G., Parul K. By Steel Tech 14 20-25 (2020)
Thermocouple temperature measurement during high speed electron beam welding of SS 304 Nayak L., Roy G. G. By Optik - (2020)
Establishing a correlation between residual stress and natural frequency of vibration of electron beam weld of AISI 304 stainless steel Das D., Pratihar D. K., Roy G. G. By Arabian Journal for Science and Engineering - (2020)
Nature Inspired Optimization Algorithm Tuned Feed Forward and Recurrent Neural Networks Using CFD Based Phenomenological Model Generated Data to Model the EBW Process Das D., Pal A. R., Das A. K., Pratihar D. K., Roy G. G. By Journal for Arabian Science and Engineering - (2020)
Comparative exergy analysis between rotary hearth furnace-electric arc furnace and blast furnace-basic oxygen furnace steelmaking routes Kumar B., Roy G. G., Sen P. K. By Energy and Climate Change 1 - (2020)
Joining of zircaloy-4 of dissimilar thickness using electron beam welding Nayak L.J., Roy G.G. By International Journal of Advanced Manufacturing Technology 110 2323-2340 (2020)
Neutron diffraction bulk texture study with impact property correlation of electron beam welded dissimilar Fe-7% Al alloy to steel joints Dinda S. K., Kockelmann W. , Roy G. G., Srirangam P. By The International Journal of Advanced Manufacturing Technology 1-10 (2020)
Magic of Ironmaking Roy G. G. By Engineering Export Promotion Council (EEPC) Journal 13 30-46 (2020)
Effect of Oxygen Enrichment on Flow Field, Temperature, and Gas Concentration Profile Inside a Pilot-Scale Rotary Hearth Furnace Saleem S., Roy G.G. By Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science 51 2735-2755 (2020)
Effect of Temperature and Carbon Content on the Performance Parameters of Iron Ore-Coal Composite Pellet Mishra S., Priyadarshi S. , Roy G. G. By MGMI 116 21-29 (2020)
Effects of space charge on weld geometry and cooling rate during electron beam welding of stainless steel Das D., Pratihar D. K., Roy G. G. By Optik - (2020)
Prediction of residual stress in electron beam welding of stainless steel from process parameters and natural frequency of vibrations using machine learning algorithms with Monte-Carlo reliability test Das D., Das A. K., Pratihar D. K., Roy G. G. By IMechE, Part C - (2020)
Influence of burner nozzle configuration, and inlet gas composition on combustion, gas dynamics, temperature and concentration profile in a rotary hearth furnace Saleem S., Roy G. G. By Ironmaking & Steelmaking 1-13 (2020)
Role of Scrap Recycling for CO2 Emission in Steel Plant: A Model based Approach Sahoo M., Sarkar S. , Das A. C., Roy G. G., Sen P. K. By Steel Research International - (2019)
Thermodynamic Modelling for Design of Synthetic Slag for Inclusion Removal Mohanasundaram M., Roy G. G., Prakash S. By Trans. Indian Inst. Met. - (2019)
Prediction of earing defect and deep drawing behavior of commercially pure titanium sheets using CPB06 anisotropy yield theory Singh A., Basak S. , Prakash P. L., Roy G. G., Jha M. , Mascarenhas M. , Panda S. K. By Journal of Manufacturing Processes 33 256-267 (2018)
x-ray tomography study on porosity in electron beam welded dissimilar copper 304SS joints Kar J., Dinda S. , Roy G. G., Roy S. K., Srirangam P. By Vacuum 200-206 (2018)
Control of Slag Carryover from the BOF Vessel During Tapping: BOF Cold Model Studies Kamraj A., Mandal G. K., Roy G. G. By Metallurgical and Materials Transactions B 1-20 (2018)
Effect of beam oscillation on porosity and intermetallics of electron beam welded DP600-steel to Al 5754-alloy Dinda S. K., Jana S. , Roy G. G., Srirangam P. By Journal of Materials Processing Technology 1-9 (2018)
Effect of Orientation of Weld Line on Formability of Electron Beam-Welded Dissimilar Thickness Titanium Sheets Prakash P. L., Biswal S. K., Roy G. G., Jha M. , Maskarenhas M. , Panda S. K. By Journal of Materials Engineering and Performance 27 5913-5925 (2018)
Beam oscillation, porosity formation and fatigue properties of electron beam welded Ti-6Al-4V alloy Kar J., Chakrabarti D. , Roy S. K., Roy G. G. By Journal of Materials Processing Technology 1-7 (2018)
Effect of weld parameters on porosity formation in electron beam welded Zircaloy-4 joints: X-ray tomography study Bandi B., Dinda S. K., Kar J. , Roy G. G., Srirangam P. By Vacuum 158 172-179 (2018)
Influence of beam oscillation in electron beam welding of Ti-6AL-4V Kar J., Roy S. K., Roy G. G. By The International Journal of Advanced Manufacturing Technology 94 4531-4541 (2018)
Phenomenological model-based study on electron beam welding process, and input-output modeling using neural networks trained by back-propagation algorithm, genetic algorithms and particle swarm optimization algorithm and bat algorithm Das D., Pratihar D. K., Roy G. G., Pal A. R. By Applied Intelligence 48 2698-2718 (2018)
Modification of oxide inclusions in calcium-treated Al-killed high sulphur steels Gollapalli V., Rao M. V., Roy G. G., Sen P. K. By Ironmaking & Steelmaking 1-8 (2018)
Kinetics of thermal decomposition of hydrated minerals associated with hematite ore in a fluidized bed reactor, International Journal of Minerals Beuria P. C., Biswal S. K., Mishra B. K., Roy G. G. By International Journal of Minerals, Metallurgy and Materials 24 229-239 (2017)
Study on kinetics of thermal decomposition of low LOI goethetichematite iron ore Beuria P. C., Biswal S. K., Mishra B. K., Roy G. G. By International Journal of Mining Science and Technology 19 7-11 (2017)
Estimation and Analysis of Excess Oxygen Input into Ladle During Liquid Steel Tapping Kamraj A., Hore S. , Sathyamoorthi P. , Roy G. G., Mandal G. K. By Transactions of the Indian Institute of Metals 70 2465-2476 (2017)
Experimental investigation of recovery and efficiency of calcium addition through cored wire in steel melt at Visakhapatnam Steel Plant Kumar B., Mishra S. , Rao M. , Roy G. G. By Ironmaking & Steelmaking 1-9 (2017)
Modeling MIDREX Based Process Configurations for Energy and Emission Analysis Sarkar S., Bhattachyarya R. , Roy G. G., Sen P. K. By Steel Research International 89 1-9 (2017)
Effect of Beam Oscillation on Microstructure and Mechanical Properties of AISI 316L Electron Beam Welds Kar J., Roy S. K., Roy G. G. By Metallurgical & Materials Transactions A 2.141 1759-1770 (2017)
Effect of CaO on the reduction behaviour of iron ore-coal composite pellets in multi-layer bed rotary hearth furnace Mishra S., Roy G. G. By Ironmaking and Steelmaking 45 426-433 (2017)
In situ Observation of Calcium Oxide Treatment of Inclusions in Molten Steel by Confocal Microscopy Khurana B., Spooner S. , Rao M. , Roy G. G. By Metallurgical and Materials Transactions B 48 1409-1415 (2017)
Simulation and meta-modeling of electron beam welding using genetic algorithms Mohanty K., Roy G. G., Chakraborti N. By La Metallurgia Italiana 45-48 (2016)
3D imaging and quantification of porosity in electron beam welded dissimilar steel to Fe-Al alloy joints by X-ray tomography Dinda S. K., Warnett J. M., Williams M. A., Roy G. G., Srirangam P. By Materials & Design 96 224-231 (2016)
Kinetics study on removal of LOI by thermal decomposition of hydrated minerals associated in hematite ore Beuria P. C., Biswal S. K., Mishra B. K., Roy G. G. By J Therm Anal Calorim 126 1231-1241 (2016)
Effect of Amount of Carbon on the Reduction Efficiency of Iron Ore-Coal Composite Pellets in Multi-layer Bed Rotary Hearth Furnace (RHF) Mishra S., Roy G. G. By Metallurgical & Materials Transaction B 47B 2347-2356 (2016)
Effect of beam oscillation on electron beam welding of copper with AISI-304 stainless steel Kar J., Roy S. K., Roy G. G. By Journal of Materials Processing Technology 233 174-185 (2016)
Reduction Behaviour of Iron Ore-Coal Composite Pellets in Rotary Hearth Furnace (RHF): Effect of Pellet Shape, Size, and Bed Packing Material Mishra S., Roy G. G. By Trans. Indian Institute of Metals 70 967-978 (2016)
Microstructure and mechanical properties of electron beam welded dissimilar steel to Fe Al alloy joints Dinda S. K., Basiruddin Md. S. , Roy G. G., Srirangam P. By Materials Science & Engineering A 677 182-192 (2016)
Estimation of Average Spot Diameter and Bead Penetration Using Process Model During electron Beam Welding of AISI 304 Stainless Steel Kar J., Mahanty S. , Roy S. K., Roy G. G. By Trans IIM 68 935-941 (2015)
Mathematical Model to Estimate the Rate Parameters and Thermal Efficiency for the Reduction of Iron Ore Coal Composite Pellets in Multi-layer Bed at Rotary Hearth Furnace Kumari V., Roy G. G., Sen P. K. By Trans. IIM 68 109-116 (2015)
Reduction Efficiency of iron ore-coal composite pellets in tunnel kiln for sponge iron production Khattoi S. C., Roy G. G. By Trans. IIM 68 683-692 (2015)
Effect of Post Weld Heat Treatment (PWHT)Time and Multiple PWHT on Mechanical Properties of Multi-Pass TIG Weld Joints of Modified 9Cr-1Mo Steel Dey H. C., Albert S. K., Bhaduri A. K., Roy G. G., Balakrishnan R. By Welding in the World 58 389-395 (2014)
Mathematical Modeling of Iron Ore Sintering process using genetic algorithm: Effect of Moisture Evaporation and Condensation on the Temperature Profile Suman S., Giri B. K., Roy G. G. By Computer Methods in Materials Science 13 141-146 (2013)
Study of Reduction Behavior of Prefabricated Iron Ore Graphite/Coal Composite Pellets in Rotary Hearth Furnace Sharma M. K., Solanki V. , Roy G. G., Sen P. K. By Ironmaking & Steelmaking 40 590-597 (2013)
A New Model for Keyhole Mode Laser Welding using FLUENT Mahanty S., Laldas C. K., Roy G. G. By Trans IIM 65 459-466 (2012)
Mathematical Modelling of Iron Ore Sintering Process using Genetic Algorithm Giri B. K., Roy G. G. By Ironmaking & Steelmaking 39 59-66 (2012)
Cooling rate in 800 to 500oC range from dimensional analysis Arora A., Roy G. G., Debroy T. By STWJ 15 423-427 (2010)
Some Studies to Establish the Reaction Mechanism for the Reduction of Iron Ore-Graphite Composite Pellets in a Packed Bed Reactor Chowdhury G. M., Murmu C. S., Roy S. K., Roy G. G. By Steel Research 81 925-931 (2010)
Efficacy and recovery of calcium during CaSi cored wire injection in steel melts Basak S., Dhal R. K., Roy G. G. By Ironmaking & Steelmaking 37 161-168 (2010)
Application of genetic Algorithm (GA) to estimate the rate parameters for solid state reduction of iron ore in presence of graphite Chowdhary G. M., Roy G. G. By Computational Materials Science 45 176-180 (2009)
Laser trasmission welding of polymers Taha Z. A., Roy G. G., Hajim K. I., Manna I. By Scripta Materialia 60 663-666 (2009)
Unusual wavy weld pool boundary from dimensional analysis Arora A., Roy G. G., Debroy T. By Scripta Materialia 60 68-71 (2009)
Reduction Kinetics of Iron Ore-Graphite Composite Pellets in a Packed Bed Reactor under Inert and Reactive Atmospheres Chowdhury G. M., Roy G. G., Roy S. K. By Metallurgical & Materials Transaction B 39(2) 160-178 (2008)
Estimation of Rate Parameters for the Reduction of Iron Ore-Graphite Composite Pellets in a Packed Bed Reactor using Genetic Algorithm Chowdhury G. M., Roy G. G., Roy S. K. By Ironmaking & Steelmaking 35(1) 14-20 (2008)
Three-dimensional Heat and Material Flow during Friction Stir Welding of Mild Steel Nandan R., Linert T. J., Roy G. G., Debroy T. By Acta. Materialia 55 883-895 (2007)
A computationally efficient model of convective heat transfer and solidification characteristics during keyhole mode laser welding Rai R., Roy G. G., Debroy T. By Journal of applied Physics 101 1-11 (2007)
Dimensionless correlation to estimate peak temperature during friction stir welding Roy G. G., Nandan R. , Debroy T. By Sci. Technol. Weld. Joining 11 606-608 (2006)
Dissolution Kinetics of Cored Wire in Molten Steel Sanyal S., Chandra S. , Ghosh P. K., Khullar A. , Roy G. G. By Steel Research International 77 542-549 (2006)
Mathematical modeling of heat transfer, fluid flow and solidification during linear welding with a pulsed laser beam Roy G. G., Elmer J. W., Debroy T. By Journal of Applied Physics 100 1-7 (2006)
Numerical Modeling of 3D Plastic Flow and heat Transfer during Friction Stir Welding of Stainless Steel Nandan R., Roy G. G., Linert T. J., Debroy T. By Sci. Technol. Weld. Joining 11 526-537 (2006)
Numerical simulation of three dimensional heat transfer and plastic flow during friction stir welding Nandan R., Roy G. G., Debroy T. By Metallurgical and Materials Transactions A 37 1247-1259 (2006)
Application of the genetic algorithm to estimate the parameters related to the kinetics of the reduction of the iron ore, coal mixture Kumar A., Roy G. G. By Metallurgical and Materials Transactions B 36 901-904 (2005)
Application of the genetic algorithm to estimate the parameters related to the kinetics of the reduction of the iron ore, coal mixture Kumar A., Roy G. G. By Metallurgical and Materials Transactions B 36 901-904 (2005)
Modelling Cored Wire Injection in Steel Melts Sanyal S., Chandra S. , Singh A. , Roy G. G. By Trans IIM 57 157-169 (2004)
Physical simulation of impurity removal through submerged liquid slag injection in steel melt Ghorai S., Roy G. G., Roy S. K. By ISIJ International 44 37-42 (2004)
Steel Refining through submerged liquid slag injection - Effect of partial injection by a cold model study Ghorai S., Roy G. G., Roy S. K. By Trans IIM 57 103-108 (2004)
Submerged liquid slag injection in steel melt- Scaleup study using cold model and dimensional analysis Ghorai S., Roy G. G., Roy S. K. By Ironmaking and Steelmaking 31 401-408 (2004)
An Improved Model of Cored Wire Injection in Steel Melts Sanyal S., Chandra S. , Kumar S. , Roy G. G. By ISIJ International 44 1157-1166 (2004)
A heat transfer study of the continuous caster mold using a finite volume approach coupled with genetic algorithms Chakraborti N., Kumar K. S., Roy G. G. By Journal of Materials Engineering and Performance 12 430-435 (2003)
Modeling of heat transfer and fluid flow during gas tungsten arc spot welding of low carbon steel Zhang W., Roy G. G., Elmer J. , Debroy T. By Journal of Applied Physics 93 3022-3033 (2003)
Kinetic studies on the production of silicon carbide from rice husks Panigrahi B. B., Roy G. G., Godkhindi M. M. By British Ceramic Transactions 100 29-34 (2001)
Dephosphorization of high-carbon ferro-manganese using BaCO3-based powders - a feasibility study Choudhury P. N., Goel R. P., Roy G. G. By Ironmaking and Steelmaking 28 396-403 (2001)
Dephosphorization of high-carbon ferro-manganese using BaCO3-based powders - a kinetic study Roy G. G., Choudhury P. N., Goel R. P. By Metallurgical and Materials Transactions B 32 558-561 (2001)
Measurement of gas holdup in Pachuca tank and the effect of design and operating parameters on it Roy G. G., Bera A. , Mankar H. By Transaction of the Institution of Mining and Metallurgy, London, Section-C 109 90-96 (2000)
Particle suspension in Pachuca (air-agitated) tanks Roy G. G., Shekhar R. , Mehrotra S. P. By Metallurgical and Materials Transactions-B 29B 339-349 (1999)
Decay of fluid motion in a filling ladle after tapping Roy G. G. By Metallurgical & Materials Transactions B 29B 935-938 (1998)
Oxygen mass transfer in Pachuca (air-agitated) tanks: Part-II: Mathematical modeling of volumetric mass transfer coefficients Roy G. G., Shekhar R. By Transactions of the Institution of Mining & Metallurgy, London, Section C 105 16-21 (1996)
Oxygen mass transfer in Pachuca (air-agitated) tanks: Part-I: Laboratory scale experimental measurements Roy G. G., Shekhar R. By Transactions of the Institution of Mining & Metallurgy, London, Section C 105 9-15 (1996)
A model for dissolution of metal sulphides under oxidative ammoniacal conditions in Zns-Pbs-NH-O system Roy G. G., Ghosh M. K., Anand S. , Das R. P. By Trans IIM 48 15-20 (1995)
On mathematical modelling of turbulent fluid flow in filling ladles Roy G. G., Singh V. , Majumdar D. By Transactions of the Indian Institute of Metals 45 147-152 (1992)
Applicability of potential flow assumption for bubbles in a copper converter Roy G. G., Chakraborti N. , Sundararajan T. By Metallurgical Transactions-B 21B 1075-1079 (1990)

Conferences

X-ray Radiography Study on Defect Analysis of Electron Beam Welded Plain C-Steel and Fe-7% Al Alloy Joints Dinda S.K., Srirangam P., Roy G.G. By Minerals, Metals and Materials Series 5 346-356 (2021)
Defects Comparison Between Single- and Double-Sided Electron Beam Welded Dissimilar DP600 Steel to 5754 Al Alloy Joints: X-Ray Tomography Study Dinda S.K., Srirangam P., Roy G.G. By Minerals, Metals and Materials Series 1107-1116 (2020)
Calcium cored wire injection for stable casting: An insight into fundamentals and economics Kumar B., Roy G. G. By 2019 ISIJ Meet - (2019)
Effects of Beam Oscillation on Porosity and Intermetallic Compounds Formation of Electron Beam Welded DP600 Steel to Al-5754 Alloy Joints Dinda S.K., Srirangam P., Roy G.G. By Minerals, Metals and Materials Series 239-249 (2019)