Madhavan Radhakrishnan

Research Assistant Professor
Madhavan.Radhakrishnan@unt.edu
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  • Biography

    Dr. Madhavan Radhakrishnan is currently a research assistant professor in the Center for Agile and Adaptive Additive Manufacturing at the University of North Texas, Denton. He has a PhD in Materials Engineering from the Indian Institute of Science, Bangalore, India. He was previously a research assistant professor at the University of New Mexico, and a postdoctoral researcher at the University of Illinois, Urbana-Champaign. His research interests include the processing-microstructure correlation in materials, irradiation behavior of materials, multiscale mechanical behavior in materials, and materials design for advanced engineering applications. Dr. Radhakrishnan has extensive research experience in the field of large strain plastic deformation, microstructural evolution and mechanical testing of structural materials. He has involved in many application-driven research programs focusing on the role of microstructures in alloy development. His technical skills span microstructural characterization using TEM (including HRTEM and STEM), FIB, SEM-EBSD/TKD, and mechanical property measurements via tensile testing, micro- and nano-indentation. He has published more than 40 articles in peer-reviewed high-impact journals (H-index: 13) and is serving as a reviewer for research journals such as Acta Materialia and Materials Science and Engineering.

  • Research

    · Advanced Manufacturing techniques

    · Mechanical behavior of materials

    · Processing – Microstructure – Property correlation

    · Irradiation microstructures in metals and alloys

    · Bulk nanostructured materials

    · Tribology properties at macro and micro length scales

    · Crystallographic texture in materials

  • Publications

    1. S Mazumder, MV Pantawane, SM Patil, M Radhakrishnan, S Sharma, M McKinstry, NB Dahotre, Thermokinetically-driven Microstructural Evolution in Laser-based Directed Energy Deposited CoCrMo Biomedical Alloy, Advanced Engineering Materials, 2022.

    2. M Radhakrishnan, B Kombaiah, MN Bachhav, TJ Nizolek, M Knezevic, YQ Wang, N Mara, O Anderoglu, Layer stability under heavy-ion irradiation in accumulative roll bonded bulk Zr/Nb Multilayers, Journal of Nuclear Materials, 2021.

    3. M Radhakrishnan, MM Hassan, BE Long, TJ Lienert, O Anderoglu, Microstructure and Mechanical properties of Ti/TiC composites fabricated by Laser Engineered Net Shaping® deposition, Additive Manufacturing, 2021.

    4. M Radhakrishnan, E Torresani, E Olevsky, R McCabe, SA Maloy, O Anderoglu, Joining of nanostructured ferritic 14YWT alloys by Spark Plasma technique, Journal of Materials Engineering and Performance, 2021.

    5. R Kalsar, R Madhavan, S Suwas, Texture evolution in platinum: the role of non-octahedral slip, Philosophical Magazine Letters, 2021.

    6. G Shankar, R Madhavan, R Kumar, B Sahoo, RK Ray, S Suwas, Micro-mechanism of evolution of microstructure and texture in Ni-Fe alloys, Materialia, 2020.

    7. R Kalsar, R Madhavan, RK Ray, S Suwas, Texture transition in Al-Mg alloys: Effect of Magnesium, Philosophical Magazine, 2020.

    8. R Madhavan, P Bellon, RS Averback, Wear resistance of Cu-Ag multilayers: A microscopic study. ACS Applied Materials and Interfaces, 2018.

    9. A Sharma, S Chhangani, R Madhavan, S Suwas, Correlation between crystallographic texture, microstructure and magnetic properties of pulse electrodeposited nanocrystalline nickel-cobalt alloys, Journal of Magnetism and Magnetic Materials, 2017.

    10. R Madhavan, S Suwas, Micro-mechanical aspects of deformation texture evolution in nanocrystalline nickel-cobalt alloys, Acta Materialia, 2016.

    11. R Madhavan, RK Ray, S Suwas, Micro-mechanical aspects of texture evolution in nickel and nickel-cobalt alloys: role of stacking fault energy, Philosophical Magazine, 2016.

    12. R Madhavan, S Suwas, Evolution of deformation texture and magnetic properties in a nanocrystalline nickel – 20 wt% cobalt alloy, Journal of Magnetism and Magnetic Materials, 2015.

    13. R Madhavan, S Nagaraju, S Suwas, Texture evolution in nanocrystalline nickel: Critical role of strain path, Metallurgical and Materials Transactions A, 2015.

    14. P Ghosh, S Kumar, R Gopalakrishnan, K Vidya, R Madhavan, S Suwas, A Ghosh, N Ravishankar, S Raghavan, Insights on Defect-Mediated Heterogeneous Nucleation of Graphene on Copper, The Journal of Physical Chemistry C, 2015.

    15. G Anand, K Barai, R Madhavan, PP Chattopadhyay, Evolution of annealing texture in cryo-rolled copper, Materials Science and Engineering A, 2015.

    16. N Anand, S Sankaran, R Madhavan, Satyam Suwas, P Venugopal, Microstructural Dependence of Work Hardening Behavior in Martensite-Ferrite Microalloyed Steels, Journal of Materials Engineering and Performance, 2015.

    17. SVSN Murty, N Nayan, R Madhavan, SC Sharma, KM George, Satyam Suwas, Analysis of microstructure and texture evolution in Mg-3Al-1Zn alloy processed through groove rolling, Journal of Materials Engineering and Performance, 2015.

    18. R Madhavan, R Kalsar, RK Ray, S Suwas, Role of stacking fault energy on texture evolution revisited, IOP conference series: Materials Science Engineering, 2015.

    19. R Madhavan, RK Ray, S Suwas, New insights into the development of microstructure and deformation textures in nickel – 60 wt.% cobalt alloy, Acta Materialia, 2014.

    20. R Madhavan, RK Ray, S Suwas, Texture transition in cold rolled nickel - 40 wt.% cobalt alloy, Acta Materialia, 2014.

    21. R Madhavan, S Suwas, Deformation of nanograined Ni–60Co alloy with low stacking fault energy, Philosophical Magazine Letters, 2014.

    22. R Madhavan, NP Gurao, S Suwas, Texture evolution during annealing of large-strain deformed nanocrystalline nickel, Philosophical Magazine Letters, 2014.

    23. R Madhavan, RK Ray, S Suwas, Deformation texture and microstructure evolution in nickel and nickel-cobalt alloys, Materials Science Forum, 2014. 24. K Velmanirajan, K Anuradha, ASA Thaheer, R Narayanasamy, R Madhavan, Satyam Suwas, Experimental investigation of forming limit, void coalescence and crystallographic textures of aluminum alloy 8011 sheet annealed at various temperatures, Archives of Civil and Mechanical Engineering, 2014. 25. S Roy, R Madhavan, S Suwas, Crystallographic texture and microstructure evolution during hot compression of Ti–6Al–4V–0.1 B alloy in the (α+β)-regime, Philosophical Magazine, 2013.

    26. K Velmanirajan, ASA Thaheer, R Narayanasamy, R Madhavan, Satyam Suwas, Effect of Annealing Temperature in Al 1145 Alloy Sheets on Formability, Void Coalescence, and Texture Analysis, Journal of Materials Engineering and Performance, 2013.

    27. R Madhavan, NP Gurao, Satyam Suwas, Deformation and Recrystallization texture evolution in Nano-crystalline Nickel, Materials Science Forum, 2012.

    28. PR Mondi, R Madhavan, VS Sarma, S Sankaran, Study of Texture in Ultra-Fine Grained Dual Phase Steel Sheets, Materials Science Forum, 2012.

    29. M Thirumurugan, R Madhavan, S Kumaran, T. Srinivasa Rao, Satyam Suwas, Study of the microstructure, texture and tensile properties in as-extruded AZ91 and ZM21 magnesium alloys, Materials Science Forum, 2012.

  • Professional Experience

    Research Assistant Professor University of North Texas, TX, USA

    Sep 2022 – Department of Nuclear Engineering

    ·Leading research projects on microstructural and mechanical behavior of high entropy alloys and ferritic martensitic steels.

    Research Assistant Professor University of New Mexico, NM, USA

    Sep 2020 – Aug 2021 Department of Nuclear Engineering

    · Led a research project that focused on the irradiation behavior of mechanically-processed metallic multilayers up to large irradiation doses. This involved mechanistic analyses of complex microstructures under extreme conditions of large irradiation doses and elevated temperature, using FIB and TEM.

    · Awarded NSUF-RTE grants to study the irradiated microstructures using facilities available at INL.

    Post-doctoral research fellow University of New Mexico, NM, USA

    Apr 2018 – Aug 2020 Department of Nuclear Engineering

    · Led the joint research team comprising industrial and academic collaborators, at Optomec Inc and UNM, to study the additive manufacturing of Ti-based composites and martensitic steels.

    · Implemented characterization tools such as electron probe microanalysis, scanning electron microscopy and mechanical tests to correlate deposited microstructures and mechanical properties.

    Post-doctoral research associate University of Illinois, Urbana-Champaign, IL, USA.

    Jan 2015 – Mar 2018 Department of Materials Science and Engineering

    · Designed experiments to study wear under microscopic tribological contacts in PVD sputtered multilayers and co-sputtered solid solution thin films.

    · Mechanical testing under wear and scratch conditions in a tribo-indenter, and microscopic characterization using AFM, FIB and TEM to identify the wear mechanisms.

    · Presented the research work every year at the annual conference held at Manchester, UK.

    · Safety in-charge of the materials processing lab of the group.

    Graduate Research Assistant Indian Institute of Science, Bangalore, India

    Aug 2008 – Dec 2014 Department of Materials Engineering

    · Developed and optimized electrodeposition technique to fabricate novel nickel-cobalt alloys.

    · Designed delicate characterization experiments using XRD, EBSD and TEM to identify operative mechanisms.