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IInvenTiv2026

Faculty details

Prof.Vivek Kumar Sahu

Designation: Assistant Professor

Department: Fuel, Minerals and Metallurgical Engineering

Email: viveksahu[at]iitism[dot]ac[dot]in

Contact Number: 7355342947

Office Number: +91-326-223-326

Personal Page: Click Here

About Me: He is an assistant professor in the Department of Fuel, Minerals and Metallurgical Engineering at IIT-ISM Dhanbad, Jharkhand. Prior to this, he was a postdoctoral researcher in the Department of Mechanical Engineering at University of North Texas (UNT) from March 2024, where he worked on a U.S. Department of Defense-funded project titled “High-throughput Screening and Quality Assessment Testing and an AI-based In-Situ Process Monitoring and Quality Control Framework for Additive Manufacturing New Builds and Repaired Parts”. Before joining UNT, Dr. Sahu was a postdoc in the Department of Materials at The University of Manchester, UK in the EPSRC-funded NEWAM project from July 2022 to March 2024. His focus encompassed diverse aspects, including prior β-grain refinement mechanisms of wire-arc additive manufacturing (WAAM) Ti6Al4V utilizing ultrasonic impact peening and self β-grain refinement of WAAM commercially pure Ti (CP-Ti) exploiting in-situ heating and dilatometry thermal simulations. Additionally, he concentrated on micromechanical behaviour across the interface and tailored the gradient microstructure of dissimilar WAAM Ti6Al4V-Ti5Al5V5Mo3Cr employing various methodologies like high resolution digital image correlation (HRDIC), large area EBSD, EDS and DICTRA. He earned his PhD in Materials Science and Engineering from Indian Institute of Technology Kanpur in September 2022. His doctoral research focused on the micro-mechanism of deformation and damage evolution in CP-Ti, leveraging in-situ EBSD, DIC, mechanical testing and crystal plasticity simulations. With a strong research background, Dr. Sahu is an active explorer in the field of deformation and damage mechanics across length and time scales, utilizing state of the art characterization and simulation tools.

Research Interest: Mechanical metallurgy, Physical metallurgy, Additive manufacturing, Dissimilar materials, Micro-structure engineering, Electron microscopy, Texture, Crystal plasticity simulations, Light metal alloys.

Curriculum
Vitae
Publications

Teaching

  • Electrochemistry and Corrosion (FMC204)
  • Research Methodology (NFMC 595 & NFMC 596)

Academics

Degree College Year
PhD IIT Kanpur, India 2016 - 2022 
M.Tech IIT Kharagpur, India 2014 - 2016
B.Tech NIT Raipur, India 2010 - 2014

 

Position

  • Assistant Professor (January 2025 - Present)

Fuel, Minerals and Metallurgical Engineering

Indian Institute of Technology (ISM) Dhanbad, India

 

  • Research Associate (March 2024 - January 2025)

Mechanical Engineering

University of North Texas, Denton, Texas, USA

 

  • Research Associate (July 2022 - March 2024)

Materials Engineering 

The University of Manchester, UK

 

Awards and Honors

  1. Third prize in poster presentation at Research Scholar Day 2019 IIT Kanpur, India.
  2. Synchrotron characterization at DESY, Germany, March 10-17, 2020.
  3. SPARC fellowship for advanced characterization techniques at Imperial College London.
  4. Editor’s choice for free access (2024): Metallurgical and Materials Transactions for the paper titled "Achieving a columnar-to-equiaxed transition through dendrite twinning in high deposition rate additively manufactured titanium alloys".
  5. ASM author award (2024) for publishing paper titled "Achieving a columnar-to-equiaxed transition through dendrite twinning in high deposition rate additively manufactured titanium alloys" in Metallurgical and Materials Transactions.

Publications

List Of Research Publications (only in Peer-reviewed Journals)

  1. V. K. Sahu, H. R. Siller, M. H. Shen; Effectiveness of residual stress and pores on the β-grain refinement in L-PBF Ti6Al4V processed with hot isostatic pressing; Additive Manufacturing Letters (2025); DOI: https://doi.org/10.1016/j.addlet.2025.100291
  2. F Zakir, A. K. Syed, X Zhang, A. E. Davis, V. K. Sahu, A. E. Caballero, R. Biswal, P. B. Prangnell, S. Williams; Microstructure tailoring of a wire-arc DED processed Ti6242 alloy for high damage tolerant performance; Additive Manufacturing (2025);   DOI: https://doi.org/10.1016/j.addma.2025.104785
  3. V. K. Sahu, S. Chandrakar, S. Jha, N. P. Gurao; Elucidating the fracture toughness of additively manufactured and thermo-mechanically treated Ti6Al4V; Materials Transactions (2025); DOI: https://doi.org/10.2320/matertrans.MT-MC2024006
  4. V. K. Sahu, Romali Biswal, AE Davis, S Williams, P Prangnell, Prior β-grain refinement in WAAM Ti-6Al-4V processed by inter-pass ultrasonic peening, Materialia (2024); DOI: https://doi.org/10.1016/j.mtla.2024.102236
  5. A. S. Marodkar, V. K. Sahu, H Borkar; Enhancing strength and reducing yield asymmetry in extruded AZ91 alloy through combined ca Se additions; Journal of Materials Engineering and Performance (2024); DOI: https://doi.org/10.1007/s11665-024-10059-8
  6. V. K. Sahu, P. Chakraborty, Manasij Yadava, N. P. Gurao; Micro-mechanisms of anisotropic deformation in the presence of notch in commercially pure titanium: an in-situ study with CPFEM simulations;  International Journal of Plasticity (2024); DOI: https://doi.org/10.1016/j.ijplas.2024.103985
  7. A. E. Davis, J. Wainwright, V. K. Sahu, D. Dreelan, X. Chen, J. Ding, T. Flint, S. Williams, P. B. Prangnell; Achieving a columnar-to-equiaxed transition through dendrite twinning in high deposition rate additively manufactured titanium alloys; Metallurgical and Materials Transactions A (2024); DOI: https://doi.org/10.1007/s11661-024-07388-7
  8. V. K. Sahu, M. Yadava, N.P. Gurao; Elucidating the extreme anisotropy in the J-Integral value of commercially pure titanium, Material Science and Engineering: A (2023); DOI: https://doi.org/10.1016/j.msea.2023.145434
  9. K. U. Yazar, S. Bahl, S. Mishra, V. K. Sahu, A. Bhattacharjee, D. Banerjee, S. Suwas; Microcrack formation under normal and dwell fatigue of IMI 834; International Journal of Fatigue (2023); DOI: https://doi.org/10.1016/j.ijfatigue.2023.107724
  10. S. Nagarajan, R. Jain, S. Jha, V. K. Sahu, N.P. Gurao; In-Situ electron backscatter diffraction study of deformation behavior of fine-grained dual phase steel subjected to uniaxial tension; Journal of Materials Engineering and Performance; DOI: https://doi.org/10.1007/s11665-023-07819-3
  11. A. Chakrabarty, P. Chakraborty, R. Jain, V. K. Sahu, N. P. Gurao, H. N. Bar, N. Khutia; Influence of scanning and building strategies on the deformation behaviour of additively manufactured AlSi10Mg: CPFEM and finite element studies; Metals and Materials International  (2023); DOI: https://doi.org/10.1007/s12540-023-01418-6
  12. A. Ghosh, V.K. Sahu, N.P. Gurao; Effect of heat treatment on the ratcheting behaviour of additively manufactured and thermo-mechanically treated Ti–6Al–4V alloy; Materials Science and Engineering: A (2022); DOI: https://doi.org/10.1016/j.msea.2021.142345
  13. V. K. Sahu, M. Yadava, P. Chakraborty, N. P. Gurao; Effect of notch severity and crystallographic texture on local deformation and damage in commercially pure titanium, International Journal of Plasticity (2022); DOI: https://doi.org/10.1016/j.ijplas.2022.103318.
  14. A. Chakrabarty, V. K. Sahu, A. Das, S. Mukherjee, N.P. Gurao, P. Chakraborty, H.N. Bar, N. Khutia; Study of the effect of two separate tilt angles of laser scanning lines on the microstructure and mechanical properties in direct metal laser sintered AlSi10Mg alloy; Metals and Materials International (2022); DOI: https://doi.org/10.1007/s12540-021-01080-w.
  15. V. K. Sahu, R. Sonkusare, K. Biswas, N. P. Gurao; In Situ Experiments: Paving Ways for Rapid Development of Structural Metallic Materials for a Sustainable Future; Journal of the Indian Institute of Science (2022); DOI: https://doi.org/10.1007/s41745-022-00292-2
  16. S. Mohanty, A. Kothari, R. Raghavan, V. K. Sahu, N.P. Gurao, K. K. Sahu, B. K. Dhindaw, L. Zeng, M. Xia, S. Gollapudi; Microstructure and mechanical properties of high-carbon-containing Fe-Ni-Mn-Al-Cr high-entropy alloy: effect of thermomechanical treatment, Frontier in Materials (2022);  DOI: https://doi.org/10.3389/fmats.2022.915278
  17. S. Sinha, V. K. Sahu, V. Beura, R. Sonkusare, R. Kalsar, A.K.L. Das, J. Basu, N. P. Gurao, K. Biswas; Initial texture dependence of nanocrystalline omega phase formation during high-pressure torsion of commercially pure titanium; Materials Science and Engineering: A (2021);  DOI: https://doi.org/10.1016/j.msea.2020.140687
  18. M. V. Krishna, V. K. Sahu, A. Ghosh, H. G. Brokmeier, N. P. Gurao, In-situ investigation of the evolution of microstructure and texture during load reversal of commercially pure titanium using synchrotron X-ray diffraction; Materials Characterization (2020);  DOI: https://doi.org/10.1016/j.matchar.2019.110039
  19. V. K. Sahu, S. Gupta, N.P. Gurao; Effect of Initial Texture on the Evolution of Microstructure and Texture During Rolling of Commercially Pure Titanium at Room and Cryogenic Temperature; Metallurgical and Materials Transactions A (2020);  DOI: https://doi.org/10.1007/s11661-020-05979-8

Papers in conference abstract volumes / presented

  1. D. Hu, R. Biswal, V. K. Sahu, J. W. Fellowes, A. Zadehkabir, S. Williams, A. E. Davis, On the chemical composition, microstructure and mechanical properties of a Nitrogen-contaminated Ti-6Al-4V component built by wire-arc additive manufacturing;  IOP Conference Series: Materials Science and Engineering (2024); DOI: 10.1088/1757-899X/1310/1/012020
  2. A. Chakrabarty, P. Chakraborty, V. K. Sahu, N.P. Gurao, N. Khutia; Investigation of strain localization in additively manufactured AlSi10Mg using CPFEM, Composite Materials for Extreme Loading (2021); DOI: https://doi.org/https://doi.org/10.1007/978-981-16-4138-1_15
  3. K.U. Yazar, A. Karmakar, V. K. Sahu, A. Bhattacharjee, S. Suwas; Normal and dwell fatigue behavior of a near-alpha titanium alloy - IMI 834; MATEC Web of Conference (2020); DOI: https://doi.org/10.1051/matecconf/202032104005

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