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  • हिन्दी Eng

    • Dr. Sunilkumar D

    Dr.Sunilkumar D

    Information

    • Designation : Assistant Professor
    • Email : sunilkumar@mech.nits.ac.in
    • Phone : 03842-280020 Ext No: 2256, Mob No: 8012828125

    Research Group

    • Materials Processing and Welding Science

    Key Notes

    • Journals: 22
    • Book Chapters: 6
    • PhD: Guided: 2
    • Post Graduates: Guided: 3
    • Under Graduates: Guided: 5

    Cited by

    AllSince 2021
    Citations155147
    h-index77
    i10-index66
    0
    40
    20
    20202021202220232024202520268162622194023

    28

    PUBLICATIONS

    2

    DOCTORAL STUDENTS

    Introduction [Biosketch]

    • Sunilkumar D received the B.E degree in Mechanical Engineering and M.E Degree in Thermal Engineering stream from Anna University, Chennai, India, in 2013, and 2015 respectively. After the Post Graduation, he worked as a Project Associate for the BRNS sponsored Project entitled “Determining the most appropriate condition to avoid hydrogen embrittlement in modified 9Cr-1Mo steel weld joint in as welded condition” at Indira Gandhi Center for Atomic Research (IGCAR), Department of Atomic Energy (DAE), Kalpakkam, India. After the successful completion of BRNS project, He registered Ph.D. in the Department of Metallurgical and Materials Engineering at NIT Trichy and completed in Jan 2021. Also, He was a Post-Doctoral Research Fellow (PDF) in the Department of Metallurgical Engineering and Materials Science at IIT Bombay. After completion of One year PDF, He was worked as a Temporary Faculty in the Department of Mechanical Engineering at IIEST Shibpur, Howrah, West Bengal India. Currently, He is working as an Assistant Professor in the Department of Mechanical Engineering at NIT Silchar, Assam. He has published 21 SCI Indexed research article in the various reputed International Journals. His research interest includes Welding Science, Materials Characterization, Materials Processing, Surface coating, Heat Treatment, Mechanical Properties etc.

    Areas of Interest

    • Welding Science, Materials Processing, Materials Characterization, Composite fabrication, Surface Coating
    • (PhD Position Available in Advanced Materials & Manufacturing)

    Institution Year Degree
    Anna University Chennai 2013 B.E
    Anna University Chennai 2015 M.E
    NIT Trichy 2021 Ph.D

    Teaching Experience
    Temporary Faculty
    13 December 2021 - 30 June 2022
    IIEST Shibpur
    Industrial/Research Experience
    Post Doctoral Fellow
    4 November 2020 - 4 November 2021
    IIT Bombay
    Project Associate
    1 June 2015 - 29 June 2016
    IGCAR Kalpakkam, Department of Atomic Energy

    M S Krishnalal, P. Chakravarthy, Sunilkumar Dhasan, “Valorization of metal waste into high-performance nylon 66 composites through friction stir processing”, Materials Letters, Volume 406, Issue 1 March 2026, 139937, December, 2025, https://doi.org/10.1016/j.matlet.2025.139937, Indexed in SCI, Impact Factor: 2.7, Quartile: Q2

    K. T. Sabu, Amal V. Purushothaman, S. Muthukumaran, Sunilkumar Dhasan, “Interface Microstructural Analysis of Friction‑Welded Tube‑to‑Plate Joints of AA 6061 and ASTM A106 Grade B Steel Using a Tungsten Tool”, Transactions of the Indian Institute of Metals, Volume 78, Issue 11, November, 2025, https://doi.org/10.1007/s12666-025-03740-6, Indexed in SCI, Impact Factor: 1.6, Quartile: Q2

    Ashutosh Padhan, Sunilkumar D and Sumitra Sharma, “Influence of heat input on the microstructures, mechanical properties, and corrosion behaviour of dissimilar Nimonic 75 superalloy and Nitronic 50 austenitic stainless steel GTA welds”, Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, Volume 239, Issue 11, November, 2025, https://doi.org/10.1177/14644207251393426, Indexed in SCI, Impact Factor: 2.4, Quartile: Q2

    Amos Thounaojam, Abhijith Sahadevan, Ashutosh Padhan & Sunilkumar Dhasan, “Variant Response of Multi-pass Friction Stir Process on Evolution of Microstructure, Texture, Hardness, and Corrosion Behavior of AA7075”, Journal of Materials Engineering and Performance, Volume 34, Issue 1059-9495, October, 2025, https://doi.org/10.1007/s11665-025-12477-8, Indexed in SCI, Impact Factor: 2.0, Quartile: Q2

    Amos Thounaojam, Abhijith Sahadevan, MS Krishnalal, Pranjal Shome, Jyoti Bhukhan Das, Sunilkumar Dhasan, “Studies on Impact of Magnesium (Mg) Interlayers on Dissimilar Friction Stir Welding of Aluminum and Copper”, Transactions of the Indian Institute of Metals 2019, Volume 78, Issue 5, May, 2025, https://doi.org/10.1007/s12666-025-03594-y, Indexed in SCI, Impact Factor: 1.6, Quartile: Q2

    P Thibakarmoorthy, Amos Thounaojam, Abhijith Sahadevan, S Vivekanandan, MS Krishnalal, Sunilkumar Dhasan, “Multi-pass friction stir processing of pure copper: A pathway to superior strength and corrosion resistance”, Materials Letters, Issue 138752, 1, May, 2025, https://doi.org/10.1016/j.matlet.2025.138752, Indexed in SCI, Impact Factor: 2.7, Quartile: Q2

    KT Sabu, Amal V Purushothaman, S Muthukumaran, Sunilkumar Dhasan, “Microstructural and Mechanical Implications of Tool Speed Variations in Dissimilar Friction Welding of Steel Tubes and Aluminum Plates Using FWTPET”, Journal of Materials Engineering and Performance, Issue 1-11, 20, June, 2025, https://doi.org/10.1007/s11665-025-11493-y, Indexed in SCI, Impact Factor: 2.0, Quartile: Q2

    Md Saifullah Azad Naim, Nashit Gaurav Rajeshbhai, Polash Kumar Deb, Sunita Murmu, Abhijith Sahadevan, Sunilkumar Dhasan, “Numerical and experimental investigation of zinc-coated Dual-Phase steel via friction stir processing”, Journal of Alloys and Compounds Communications, Issue 100104, 2025, https://doi.org/10.1016/j.jacomc.2025.100104, Indexed in Scopus, Quartile: Q2

    Amos Thounaojam, Abhijith Sahadevan, Yogesh Singh, Sunilkumar Dhasan, “Refining Dual-Phase Steel: The Fine Line between hardness Boost and corrosion Risk in multipass FSP”, Materials Letters, Volume 400, Issue 139178, 2025, https://doi.org/10.1016/j.matlet.2025.139178, Impact Factor: 2.7

    Varghese, V., Sharma, P., Ramesh, M.R. Sunilkumar Dhasan, “Experimental Investigation on Surface Integrity in Cryogenic Machining of Maraging Steel.”, Journal of Materials Engineering and Performance, Volume 1128, Issue ISSN: 1662-9752, 2, January, 2025, https://doi.org/10.1007/s11665-025-10672-1, Indexed in SCI, Impact Factor: 2.2, Quartile: Q2

    Mitigating heterogeneity in dissimilar steel welding: A study on AISI 304 - DP 980 TIG joints with INCONEL 625

    Upasana Das, Sonakshi Gupta, Md Aftab Islam Sahad and Sudhesna Sur Roy
    Enrolled: 1 May 2023
    Completed :  1 May 2026
    Supervisor : Dr. Sunilkumar D
    Academic Year : 2025-2026

    A numerical and experimental study on improving corossion resistance of Zinc-coated Dual-Phase steel vis Friction Stir Processing

    Nashit Gaurav Rajeshbhai and MD Saifullah Azad Naim
    Enrolled: 1 May 2021
    Completed :  1 May 2025
    Supervisor : Dr. Sunilkumar D
    Academic Year : 2024-2025

    Study on effect of different tool rotational speed on the evalution of microstructure and mechanical properties of double-sided Friction Stir Welded AA7075-T6 thick plate

    Polash Kumar Deb and Sunita Murmu
    Enrolled: 1 May 2022
    Completed :  1 May 2025
    Supervisor : Dr. Sunilkumar D
    Academic Year : 2024-2025

    Effect of interlayer on material behaviour of dissimilar Friction Stir Weldment of AA7075 and pure Cu

    Jyoti Bhukhan Das and Pranjal Shome
    Enrolled: 1 May 2020
    Completed :  1 May 2024
    Supervisor : Dr. Sunilkumar D
    Academic Year : 2023-2024

    Development of Nylon based bamboo powder composite through Friction Stir Processing

    Swapnojit Das and Urnanav Khound
    Enrolled: 1 May 2020
    Completed :  1 May 2024
    Supervisor : Dr. Sunilkumar D
    Academic Year : 2023-2024

    Effect of multi-pass Friction Stir Processing on structure property correlations in pure and reinforced copper

    Thibakarmoorthy P
    Enrolled: 1 March 2024
    Completed :  1 May 2026
    Supervisor : Dr. Sunilkumar D
    Co Supervisor : Dr. Purushottam Kumar Singh
    Academic Year : 2025-2026

    Surface modification of DP780 steel through Multipass Friction Stir Processing

    Amos Thounaojam
    Enrolled: 1 May 2023
    Completed :  1 May 2025
    Supervisor : Dr. Sunilkumar D
    Co Supervisor : Dr. Yogesh Singh
    Academic Year : 2024-2025

    Studies on numerical and experimental investigation of the effect of induction heating parameters on the coating of Zn layer on mild steel substrate

    Gaurav Dey
    Enrolled: 1 May 2022
    Completed :  1 May 2024
    Supervisor : Dr. Sunilkumar D
    Academic Year : 2023-2024

    Friction Stir Welding of Dissimilar Materials

    Arun Nixon N
    Enrolled: 1 January 2026
    Ongoing
    Supervisor : Dr. Sunilkumar D
    Co Supervisor : Dr. Sudipta Halder
    Academic Year : 2026-2027

    Valorisation of industrial metal and slag wastes into high-performance Nylon 66 composites via Friction Stir Processing

    Krishnalal M S
    Enrolled: 25 July 2024
    Ongoing
    Supervisor : Dr. Sunilkumar D
    Academic Year : 2024-2025

    Awards And Honours

      • 1. Best poster award received from the International conference on Advanced Materials and manufacturing Processes for Strategic Sectors which is organized by Indian Institute of Metals in the year of 2018.
      • 2. Best poster award received from National Metallurgists Day organized by Indian Institute of Metals in the year of 2019.
      • 3. Received the Best Paper Award at the International Symposium on Joining of Materials for the paper titled "Microstructural and Mechanical Insights into Al–Steel Friction Welds with Zinc Interlayer," organized by the National Institute of Technology Tiruchirappalli in association with Welding Research Institute (WRI) and Bharat Heavy Electricals Limited (BHEL) in 2025.
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