Publications

Polamuri, Sudheer Kumar, Avinash Mishra, Srihari Chitral, Venkata Kiran Degala, and Ajay Kumar.
“Thermal–mechanical analysis of Ti-6Al-4V components in wire-arc directed energy deposition using a novel in situ trapezoidal-parallelogram overlapping (TPO) model.”
Progress in Additive Manufacturing (2025): 1–20.
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Behera, Swaroop, Ajay Kumar, Amir Kordijazi, David Weiss, and Pradeep K. Rohatgi.
“Tribological analysis and machine learning modeling of nickel-coated graphite reinforced A206 metal matrix composites.”
Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications (2024): 14644207241292819.
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Tirumala, Tumula, Ajay Kumar.
“Reverse Cladding of Austenitic Stainless Steel to Aluminium-Silicon Alloy Through the Casting Route.”
Indian Foundry Journal VOL 70, ISSUE 6, JUN 2024: pg 30–33.

Chakraborty, Dipayan, Akanksha Prajapati, BR Chandra Obul Reddy, and Ajay Kumar.
“High temperature deformation characteristics, processing maps and microstructural development of Ti-900 alloy.”
ASM Materials and Processing Journal VOL 1, Issue 2 October 2024.
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Tirumala, Tumula, Ajay Kumar, and Chandra Shekhar Perugu.
“Reverse cladding of 304 stainless steel to LM25 aluminium alloy through die-casting.”
Materials Letters (2023): 134896.
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Chakraborty, Dipayan, Gyan Shankar, Akanksha Prajapati, BR Chandra Obul Reddy, and Ajay Kumar.
“Hot deformation characteristics and microstructural evolution of Ti-900 alloy.”
Materials Letters (2023): 135546.
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Rane, Kaustubh, Swaroop Behera, Amir Kordijazi, Ajay Kumar, Benjamin Church, Rathindra Dasgupta, and Pradeep Rohatgi.
“Residual Stress, Adhesion, Hardness, and Corrosion Resistance of Surface Alloyed Layer Formed during Sand Casting of Mild Steel.”
Journal of Materials Engineering and Performance 32, no. 11 (2023): 4823–4833.
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Chakraborty, Dipayan, Tumula Tirumala, Srihari Chitral, B. N. Sahoo, D. V. Kiran, and P. Ajay Kumar.
“The state of the art for wire arc additive manufacturing process of titanium alloys for aerospace applications.”
Journal of Materials Engineering and Performance 31, no. 8 (2022): 6149–6182.
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Rane, Kaustubh, Michael Beining, Swaroop Behera, Amir Kordijazi, Ajay Kumar, and Pradeep Rohatgi.
“Sand casting of surface alloyed butterfly valve with improved hardness and corrosion resistance by incorporating metal powders in-mold coatings.”
International Journal of Metalcasting 16, no. 1 (2022): 359–369.
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Arafat, Y., H. Yang, I. Dutta, P. A. Kumar, and B. Datta.
“A model for intermetallic growth in thin Sn joints between Cu substrates: application to solder microjoints.”
Journal of Electronic Materials 49 (2020): 3367–3382.
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Ajay Kumar, Joshi, Gaurang, and Kush P. Mehta.
“Fabrication and applications of fullerene-based metal nanocomposites: A review.”
Journal of Materials Research 36, no. 1 (2021): 114–128.
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Prabu, SS Mani, Chandra S. Perugu, Ashutosh Jangde, H. C. Madhu, M. Manikandan, Manoj D. Joshi, Santosh S. Hosmani, P. Ajay Kumar, Satish V. Kailas, and I. A. Palani.
“Investigations on the influence of surface mechanical attrition treatment on the corrosion behaviour of friction stir welded NiTi shape memory alloy.”
Surface and Coatings Technology 402 (2020): 126495.
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Rohatgi, Pradeep K., P. Ajay Kumar, Nagaraj M. Chelliah, and T. P. D. Rajan.
“Solidification processing of cast metal matrix composites over the last 50 years and opportunities for the future.”
JOM 72 (2020): 2912–2926.
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Tabandeh-Khorshid, Meysam, Ajay Kumar, Emad Omrani, Chngsoo Kim, and Pradeep Rohatgi.
“Synthesis, characterization, and properties of graphene reinforced metal-matrix nanocomposites.”
Composites Part B: Engineering 183 (2020): 107664.
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Kumar, P. Ajay, H. C. Madhu, Abhishek Pariyar, Chandra S. Perugu, Satish V. Kailas, Uma Garg, and Pradeep Rohatgi.
“Friction stir processing of squeeze cast A356 with surface compacted graphene nanoplatelets (GNPs) for the synthesis of metal matrix composites.”
Materials Science and Engineering: A 769 (2020): 138517.
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Ajay Kumar, P., Pradeep Rohatgi, and David Weiss.
“50 years of foundry-produced metal matrix composites and future opportunities.”
International Journal of Metalcasting 14, no. 2 (2020): 291–317.
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Behera, Swaroop K., Ajay Kumar P, Neil Dogra, Michael Nosonovsky, and Pradeep Rohatgi.
“Effect of microstructure on contact angle and corrosion of ductile iron: Iron–graphite composite.”
Langmuir 35, no. 49 (2019): 16120–16129.
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Prabu, SS Mani, Chandra S. Perugu, H. C. Madhu, Ashutosh Jangde, Sohel Khan, S. Jayachandran, M. Manikandan, P. Ajay Kumar, Satish V. Kailas, and I. A. Palani.
“Exploring the functional and corrosion behavior of friction stir welded NiTi shape memory alloy.”
Journal of Manufacturing Processes 47 (2019): 119–128.
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Prabu, SS Mani, H. C. Madhu, Chandra S. Perugu, K. Akash, R. Mithun, P. Ajay Kumar, Satish V. Kailas, Manivannan Anbarasu, and I. A. Palani.
“Shape memory effect, temperature distribution and mechanical properties of friction stir welded nitinol.”
Journal of Alloys and Compounds 776 (2019): 334–345.
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Pan, Liwen, Yi Yang, Muhammad Usman Ahsan, Dung Dinh Luong, Nikhil Gupta, Ajay Kumar, and Pradeep K. Rohatgi.
“Zn-matrix syntactic foams: Effect of heat treatment on microstructure and compressive properties.”
Materials Science and Engineering: A 731 (2018): 413–422.
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Ajay Kumar, P., and I. Dutta.
“Effect of intermetallic content on shear deformation of thin Sn-3.0 Ag-0.5 Cu solder micro-joints between copper substrates.”
Journal of Electronic Materials 47 (2018): 5488–5497.
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Vishnu, Namboodiri V., Pottirayil Anirudhan, and Kumar P. Ajay.
“Wear behavior of friction stir processed NAB alloys in marine environment.”
Tribology Online 13, no. 3 (2018): 75–80.
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Ajay Kumar, P., and Chandra S. Perugu.
“Synthesis of fecrvnbmn high entropy alloy by mechanical alloying and study of their microstructure and mechanical properties.”
TMS 2018 147th Annual Meeting & Exhibition Supplemental Proceedings, pp. 669–675.
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Madhu, H. C., P. Ajay Kumar, Chandra S. Perugu, and Satish V. Kailas.
“Microstructure and mechanical properties of friction stir process derived Al-TiO₂ nanocomposite.”
Journal of Materials Engineering and Performance 27 (2018): 1318–1326.
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Kumar, Ajay, Gajendra Dixit, Aruna Patel, and S. Das.
“ROLLING BEHAVIOUR OF ALUMINUM ALLOY 2014-10wt% SiCp METAL MATRIX COMPOSITES.”
(2018). DOI: 10.7449/2018/MST_2018_1296_1303
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Ajay Kumar, P., and S. V. Kailas.
“Evolution of In-Situ Nano-Pores during Friction Stir Processing of Polymer Derived Ceramic Reinforced Metal Matrix Composites.”
Res Rep Metals 1 4 (2017): 2.
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Prabu, SS Mani, H. C. Madhu, Chandra S. Perugu, K. Akash, P. Ajay Kumar, Satish V. Kailas, Manivannan Anbarasu, and I. A. Palani.
“Microstructure, mechanical properties and shape memory behaviour of friction stir welded nitinol.”
Materials Science and Engineering: A 693 (2017): 233–236.
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Kumar, Ajay, Devinder Yadav, Chandra S. Perugu, and Satish V. Kailas.
“Influence of particulate reinforcement on microstructure evolution and tensile properties of in-situ polymer derived MMC by friction stir processing.”
Materials & Design 113 (2017): 99–108.
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Kumar, Ajay, Rishi Raj, and Satish V. Kailas.
“A novel in-situ polymer-derived nano ceramic MMC by friction stir processing.”
Materials & Design 85 (2015): 626–634.
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