Srikanth Bontha

Designation: 

Professor

Date of Joining at NITK: 

Thursday, June 13, 2013

Professional Experience: 

Total: 16 years 11 months, and at NITK: 9 year 5 months

Contact Details

E-mail: 

srikanth.bontha@nitk.edu.in,
srikanth.bontha@gmail.com

Telephone: 

08242473080
Academic Background

• PhD (Wright State University),2006
• M.S. (Wright State University), 2002
• B.Tech. (JNTU College of Engg, Hyderabad),1999

Areas of Interest

• Mechanics and Materials Issues in Metal Additive Manufacturing
• Laser Processing of Materials
• Modeling of Manufacturing Processes

Significant Projects

Project Title: Assessing suitable additive manufacturing technology for processing Titanium Aluminide components with desired microstructures and high temperature properties for aeroengine applications
Sponsoring Agency: DRDO
Amount: 341 Lakhs
Status: Ongoing (2024-2027)
Role: PI

Project Title: Laser Additive Manufacturing of Novel and High-performance Ni-based Superalloy Composites
Sponsoring Agency: Scheme for Promotion of Academic and Research Collaboration
Amount: 44.08 Lakhs
Status: Ongoing, 2023-2025
Role: PI

Project Title: Laser Directed Energy Deposition of Functionally Graded Cu-SS316L structures for Power Generation Applications
Sponsoring Agency: SERB-CRG
Amount: 31.06 Lakhs
Status: Ongoing, 2023-2026
Role: PI

Project Title: Additive Manufacturing of Large Size Metal Components with Wire & Powder Hybrid Direct Energy Deposition (WP-DED) Process
Sponsoring Agency: SERB-CRG (ETP)
Amount: 17.49 Lakhs (NITK) (Total 76.88 Lakhs)
Status: Completed, 2021-2023
Role: CO-PI

Supervision of Ph.D

Completed: 06
Ongoing: 05

Significant Publications

• Gurugubelli, R.C., and Balla, V.K., Rajasekaran, B., Krishna, P., and Bontha, S., 2024 “Laser directed energy deposited Ti-48Al-2Cr-2Nb alloy: An investigation of high temperature oxidation behavior,” Materials Letters, Vol. 361. 10.1016/j.matlet.2024.136078.
• Gonnabattula, A., and Thanumoorthy, R. S., and Bontha, S., and Balan, A.S.S., Vesangi, A.K., and Kanjarla, A. K., 2024 “Process parameter optimization for laser directed energy deposition (LDED) of Ti6Al4V using single-track experiments with small laser spot size,” Optics and Laser Technology, Vol. 175. 10.1016/j.optlastec.2024.110861.
• Praharaj, A.K., and Chaurasia, J.K., and Gurugubelli, R.C., Bontha, S., and Suvin, P.S., 2024 “Enhanced tribological performance of laser directed energy deposited Inconel 625 achieved through laser surface remelting,” Surface and Coatings Technology, Vol. 477 10.1016/j.surfcoat.2023.130345.
• Manjhi S.K., Bontha S., Balan A.S.S., 2024 “Enhancing fatigue performance of AZ31 magnesium alloy components fabricated by cold metal transfer-based wire arc directed energy deposition through LPB,” Journal of Magnesium and Alloys. 10.1016/j.jma.2024.04.016.
• Manjhi S.K., Sekar P., Bontha S., Balan A.S.S., 2024 “Additive manufacturing of magnesium alloys: Characterization and post-processing,” International Journal of Lightweight Materials and Manufacture, Vol. 7. 10.1016/j.ijlmm.2023.06.004.
• Chaurasia J.K., Jinoop A.N., Paul C.P., Bindra K.S., Balla V.K., Bontha S., 2024 “ Effect of deposition strategy and post processing on microstructure and mechanical properties of serviced Inconel 625 parts repaired using laser directed energy deposition,” Optics and Laser Technology, Vol. 168, 10.1016/j.optlastec.2023.109831.
• Rodrigues J.P., Thanumoorthy R.S., Manjhi S.K., Sekar P., Perumal D.A., Bontha S., Balan A.S.S., 2023 “ Hybrid additive manufacturing of ER70S6 steel and Inconel 625: A study on microstructure and mechanical properties,” Materials Today Communications, Vol. 37, 10.1016/j.mtcomm.2023.106977.
• Likhwar J., Thanumoorthy R.S., Bontha S., Balan A.S.S., 2023 “ Evaluation of functionally graded YSZ - IN625 clad without bond coat using laser directed energy deposition,” Materials Letters, Vol. 351. 10.1016/j.matlet.2023.135012.
• Manjhi S.K., Sekar P., Bontha S., Balan A.S.S., 2023 “Effect of equiaxed grains and secondary phase particles on mechanical properties and corrosion behaviour of CMT- based wire arc additive manufactured AZ31 Mg alloy,” CIRP Journal of Manufacturing Science and Technology, Vol. 46, pp. 48 – 64. 10.1016/j.cirpj.2023.07.008.
• Thanumoorthy R.S., Sekar P., Bontha S., Balan A.S.S., 2023 “A study on the effect of process parameters and scan strategies on microstructure and mechanical properties of laser directed energy deposited IN718,” Journal of Materials Processing Technology, Vol. 319. 10.1016/j.jmatprotec.2023.118096.
• Rokkala, U., Bontha, S., Ramesh, M.R., Balla, V.K., 2023 “Influence of friction stir processing on microstructure, mechanical properties and corrosion behaviour of Mg-Zn-Dy alloy,” Journal of Materials Science, Vol.58, PP. 2893–2914. https://doi.org/10.1007/s10853-023-08208-w.
• Manjhi, S.K., Kumar, B.S.S., Rodrigues, J.P., Sekar, P., Bontha S., Balan, A.S.S., 2023 “An Experimental Investigation on Microstructure, Mechanical Properties and Corrosion Performance of CMT-Wire Arc Additively Manufactured Al-4043 Alloy,” Transactions of the Indian Institute of Metals. https://doi.org/10.1007/s12666-023-02965-7.
• Manjhi S.K., Sekar P., Bontha S., Balan A.S.S., 2023 “Effect of CMT-WAAM Process Parameters on Bead Geometry, Microstructure and Mechanical Properties of AZ31 Mg Alloy,” Journal of Materials Engineering and Performance. 10.1007/s11665-023-08498-w.
• Thanumoorthy R.S., Chaurasia J.K., Anil Kumar V., Pradeep P.I., Balan A.S.S., Rajasekaran B., Sahu A., Bontha S., 2023 “Effect of Build Orientation on Anisotropy in Tensile Behavior of Laser Powder Bed Fusion Fabricated SS316L,” Journal of Materials Engineering and Performance. 10.1007/s11665-023-08490-4.
• Gorantala, S.P.,Sekar, P., Bontha, S., Balan, A.S.S., 2023” Grinding parameters prediction under different cooling environments using machine learning techniques,” Materials and Manufacturing Processes, PP. 1-10. https://doi.org/10.1080/10426914.2022.2116043
• Jeyachandran, P., Bontha, S., Bodhak, S., Balla, V.K., Kundu, B., Doddamani, M., 2022 “Quasi-static compressive behavior of bioactive glass reinforced high density polyethylene composites,” Material Letters, Vol. 311. https://doi.org/10.1016/j.matlet.2021.131557.
• Mallikarjuna, B., Bontha S., Prasad K., Balla, V.K., 2021 “Characterization and thermal analysis of laser metal deposited γ-TiAl thin walls,” Journal of Materials Research and Technology, Vol. 15, pp. 6231-6243. https://doi.org/10.1016/j.jmrt.2021.10.133.
• Rokkala, U., Jana, A., Bontha, S., Ramesh, M.R.., and Balla, V.K., 2021 “Comparative investigation of coating and friction stir processing on Mg-Zn-Dy alloy for improving antibacterial, bioactive and corrosion behaviour,” Surface and Coatings Technology, Vol. 425. https://doi.org/10.1016/j.surfcoat.2021.127708.
• Chaurasia, J.K., Jinoop, A. N., Parthasarathy, P., Paul, C. P., Bindra, K.S., Bontha, S., 2021 “Study of Melt Pool Geometry and Solidification Microstructure during Laser Surface Melting of Inconel 625 Alloy,” Vol.246. Optik, https://doi.org/10.1016/j.ijleo.2021.167766.
• Jeyachandran, P., Bontha, S., Bodhak, S., Balla, V.K., Kundu, B., Doddamani, M., 2021 “Material extrusion additive manufacturing of bioactive glass/high density polyethylene composites,” Composites Science and Technology, Vol. 213 https://doi.org/10.1016/j.compscitech.2021.108966.
• Rokkala U.,, Bontha, S.,, Ramesh, M.R., Balla, V.K., Srinivasan, A., Kailas, S.V., 2021 “Tailoring surface characteristics of bioabsorbable Mg-Zn-Dy alloy using friction stir processing for improved wettability and degradation behavior,” Journal of Materials Research and Technology, Vol. 12, PP. 1530-1542. https://doi.org/10.1016/j.jmrt.2021.03.057.
• Lakshmikanthan, A., Mahesh, V., Prabhu, R.T., and Patel, M.G.C., and Bontha, S., 2021 “Free vibration analysis of A357 alloy reinforced with dual particle size silicon carbide metal matrix composite plates using finite element method,” 2021, Archives of Foundry Engineering, Vol. 21, no.1, PP. 101-112, 10.24425/afe.2021.136085.
• Diljith, P. K., Jinoop, A. N., Paul, C. P., Krishna, P., Bontha, S., Bindra, K. S., 2021 “Understanding the corrosion behaviour of laser directed energy deposition-based additive manufacturing built Inconel 718 under acidic environments,” Progress in Additive Manufacturing, 10.1007/s40964-021-00176-4.
• Rai, A.K., Beeraka., S., Paul, C.P., Singh, R., Rai, S.K., Mishra, G.K., Bontha, S., Bindra, K.S., 2020 “Development of thick SiC coating on thin wall tube of zircaloy-4 using laser based directed energy deposition technique,” Surface and Coatings Technology, Vol. 398. https://doi.org/10.1016/j.surfcoat.2020.126088.
• Avinash, L., Prabhu, R.T., Udayagiri, S.B., Praveennath G.K., Gupta, M., Krishna, M., and Bontha, S., 2020 “The effect of heat treatment on the mechanical and tribological properties of dual size SiC reinforced A357 matrix composites,” Journal of Materials Research and Technology, Vol. 9. No. 3, pp. 6434-6452. https://doi.org/10.1016/j.jmrt.2020.04.027.
• Jeyachandran, P., Bontha, S., Bodhak, S., Balla, V.K., Kundu, B., Doddamani, M., 2020 “Mechanical behaviour of additively manufactured bioactive glass/high density polyethylene composites,” Journal of the Mechanical Behavior of Biomedical Materials, Vol. 108. https://doi.org/10.1016/j.jmbbm.2020.103830.
• Rakesh, K.R., Bontha, S., Ramesh, M.R., Das, M., Balla, V.K., 2020 “Degradation, wettability and surface characteristics of laser surface modified Mg–Zn–Gd–Nd alloy,” Journal of Materials Science: Materials in Medicine, Vol. 31, No.5. https://doi.org/10.1007/s10856-020-06383-9.
• Patil, B., Bharath Kumar, B.R., Bontha S., Balla, V.K., Powar, S., Hemanth Kumar, V., Suresha, S.N., Doddamani, M.R., 2019 “Eco-friendly lightweight filament synthesis and mechanical characterization of additively manufactured closed cell foams,” vol. 183. https://doi.org/10.1016/j.compscitech.2019.107816.
• Rakesh, K.R., Bontha, S., Ramesh, M.R., Das, M., Balla, V.K., 2019, “Laser surface melting of Mg-Zn-Dy alloy for better wettability and corrosion resistance for biodegradable implant applications,” Applied Surface Science, Vol. 480, pp. 70-82.
• Avinash, L., Bontha, S., Krishna, M., Praveennath G.K., Prabhu, R.T., 2019 “Microstructure, mechanical and wear properties of the A357 composites reinforced with dual sized SiC particles,” Journal of Alloys and Compounds, Volume 786, pp.570-580.
• Mallikarjuna, B., Bontha S., Prasad K., Balla, V.K., 2019 “Prediction and validation of residual stresses generated during laser metal deposition of γ titanium aluminide thin wall structures,” Materials Research Express, Vol. 6, No. 10.
• Mallikarjuna, B., Bontha S., Prasad K., Balla, V.K., 2019 “Laser surface melting of γ-TiAl alloy: an experimental and numerical modeling study,” Materials Research Express, Vol. 6, No. 4.

Achievements

1. PATENTS
• Morrison, G.M., and Bontha, S., “Double-Sided Ball End Mill Cutting Insert and Tool Therefor”, United
States Patent US 2010/0124465 A1, Patented on May 20, 2010.
• Morrison, G.M., and Bontha, S., “Cutting Tool Having Coolant Delivery System for Providing Cutting Fluid
in a Fan-Like Pattern”, United States Patent US 2010/0239377 A1, Patented on September 23, 2010.
• Morrison, G.M., Bontha, S., Seculi, J., Long, T.J., Verellen J.J., and Iyer, R., “Cutting Tool with Error
Proofing Feature”, United States Patent US 2011/0076106 A1, Patented on March 31, 2011.

2. Selected to represent The Minerals, Metals & Materials
Society (TMS) in the Emerging Leaders Alliance (ELA)
Capstone Training Program, November 2010, Denver,
Colorado, USA.
3. Recipient of the 2010 Outstanding Young Manufacturing
Engineer award from the Society of Manufacturing Engineers
(SME)
4. Selected as a 2009 American Society for Metals (ASM)
/Indian Institute of Metals (IIM) Visiting Lecturer.
5. Recipient of The Minerals, Metals & Materials Society (TMS),
Young Leader Professional Development Award for Year 2009.

 

Contact us

Dr. S M Murigendrappa

Professor and Head,

Department of Mechanical Engineering,

National Institute of Technology Karnataka (NITK),

Surathkal

P. O. Srinivasnagar, Mangaluru - 575 025 Karnataka, India.

  • Phone No. (O): +91-0824-2473049

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