NAGARAJ M

EDUCATION

PhD -metal forming and Solid-state welding- 2019 -National Institute of Technology - Trichy.
M.E -Production Engineering- 2013 -Department of Mechanical Engineering-Thiagarajar College of Engineering Madurai.

RESEARCH, TEACHING, or OTHER INTERESTS

Mechanical Engineering, Industrial and Manufacturing Engineering, Metals and Alloys

Scopus Publications

Correlation of microstructure and bio-tribocorrosion behavior of equal channel angular pressed pure titanium
M. Nagaraj, Suresh Neelakantan
Materials Today Communications, 2023
Effect of equal channel angular pressing on the microstructure and tribocorrosion characteristics of 316L stainless steel
M. Nagaraj, D. Ravi Kumar, K.S. Suresh, Suresh Neelakantan
Vacuum, 2023
Experimental Investigations on Joining of Equal Channel Angular Pressed Structural Steel IS2062 with Friction Welding Method
M. Nagaraj, B. Ravisankar
Transactions of the Indian Institute of Metals, 2021
Thermal Stability and Mechanical Behaviour of Equal Channel Angular Pressed Structural Steel IS2062
M. Nagaraj, P. Deena, B. Ravisankar
Transactions of the Indian Institute of Metals, 2019
Effect of Severe Plastic Deformation on Microstructure and Mechanical Behaviour of Friction-Welded Structural Steel IS2062
M. Nagaraj, B. Ravisankar
Transactions of the Indian Institute of Metals, 2019
Investigation on ECAPed structural steel IS2062 and evaluation of strengthening mechanisms
M Nagaraj, B Ravisankar
Materials Research Express, 2019
The structural steel IS2062 was processed by equal channel angular pressing (ECAP) at room temperature with 120° channel angle die. The microstructural properties are evaluated and correlated with the mechanical properties of the ECAP processed material. Every subsequent ECAP passes the strength of the sample was improved and the results are attributed by the SPD process which generated higher dislocation density with refined grains. X-ray diffraction line profile analysis was used to determine the crystallite size, lattice strain and dislocation density. TEM analysis confirmed the dislocation structure in deformed samples. The ECAP processed sample exposed an increase in lattice strain and dislocation density with the number of passes and with a reduced crystallite size. Quantitative contributions of individual strengthening mechanisms for the overall yield strength of ECAP sample was analytically calculated. The results illustrate that the significant contribution comes from dislocation density followed by grain boundary strengthening.
Enhancing the strength of structural steel through severe plastic deformation based thermomechanical treatment
Murugan Nagaraj, B. Ravisankar
Materials Science and Engineering A, 2018
Effect of Severe Plastic Deformation on Microstructural and Mechanical Properties of Structural Steel IS2062
M. Nagaraj, B. Ravisankar
Transactions of the Indian Institute of Metals, 2018
Investigation on wear and corrosion behavior of equal channel angular pressed aluminium 2014 alloy
S P Divya, G Yoganandan, J N Balaraju, S A Srinivasan, M Nagaraj, B Ravisankar
Iop Conference Series Materials Science and Engineering, 2018
Aluminium 2014 alloy solutionized at 495°C, aged at 195°C was subjected to Equal Channel Angular Pressing (ECAP). Dry sliding wear tests were conducted using pin on disc tribometer system under nominal loads of 10N and 30N with constant speed 2m/s for 2000m in order to investigate their wear behavior after ECAP. The Co-efficient of friction and loss in volume were decreased after ECAP. The dominant wear mechanism observed was adhesion, delamination in addition to these wear mechanisms, oxidation and transfer of Fe from the counter surface to the Al 2014 pin were observed at higher loading condition. The corrosion behavior was evaluated by potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) in 3.5% NaCl solution. The results obtained from PDP showed higher corrosion potential and lower corrosion density after ECAP than base. Electrochemical impedance spectroscopy (EIS) showed higher charge transfer resistance after ECAP. Surface morphology showed decreased pit size and increased oxygen content in ECAP sample than base after PDP.
Investigation on the Effect of ECAP Routes on the Wear Behavior of AA2014
S. P. Divya, M. Nagaraj, M. Kesavamoorthy, S. A. Srinivasan, B. Ravisankar
Transactions of the Indian Institute of Metals, 2018

RECENT SCHOLAR PUBLICATIONS

Influence of process variables on dissimilar welding of titanium tube to stainless steel tube plate using an aluminium interlayer via a novel friction external tool process
M Rejil, M Kumaran, MJ Santosh, N Murugan
Welding in the World, 1-15 , 2026
2026
Correlation of microstructure and bio-tribocorrosion behavior of equal channel angular pressed pure titanium
M Nagaraj, S Neelakantan
Materials Today Communications 35, 106078 , 2023
2023
Citations: 4
Effect of equal channel angular pressing on the microstructure and tribocorrosion characteristics of 316L stainless steel
M Nagaraj, DR Kumar, KS Suresh, S Neelakantan
Vacuum 210, 111908 , 2023
2023
Citations: 18
Experimental investigations on joining of equal channel angular pressed structural steel IS2062 with friction welding method
M Nagaraj, B Ravisankar
Transactions of the Indian Institute of Metals 74 (6), 1447-1454 , 2021
2021
Citations: 1
Thermal stability and mechanical behaviour of equal channel angular pressed structural steel IS2062
M Nagaraj, P Deena, B Ravisankar
Transactions of the Indian Institute of Metals 72 (10), 2581-2589 , 2019
2019
Citations: 2
Effect of severe plastic deformation on microstructure and mechanical behaviour of friction-welded structural steel IS2062
M Nagaraj, B Ravisankar
Transactions of the Indian Institute of Metals 72 (3), 751-756 , 2019
2019
Citations: 8
Investigation on ECAPed structural steel IS2062 and evaluation of strengthening mechanisms
M Nagaraj, B Ravisankar
Materials Research Express 6 (3), 036504 , 2019
2019
Citations: 12
Enhancing the strength of structural steel through severe plastic deformation based thermomechanical treatment
M Nagaraj, B Ravisankar
Materials Science and Engineering: A 738, 420-429 , 2018
2018
Citations: 26
Effect of severe plastic deformation on microstructural and mechanical properties of structural steel IS2062
M Nagaraj, B Ravisankar
Transactions of the Indian Institute of Metals 71 (9), 2315-2323 , 2018
2018
Citations: 13
Investigation on wear and corrosion behavior of equal channel angular pressed aluminium 2014 alloy
SP Divya, G Yoganandan, JN Balaraju, SA Srinivasan, M Nagaraj, ...
IOP Conference Series: Materials Science and Engineering 314 (1), 012024 , 2018
2018
Citations: 5
Investigation on the effect of ECAP routes on the wear behavior of AA2014
SP Divya, M Nagaraj, M Kesavamoorthy, SA Srinivasan, B Ravisankar
Transactions of the Indian Institute of Metals 71 (1), 67-77 , 2018
2018
Citations: 25

MOST CITED SCHOLAR PUBLICATIONS

Enhancing the strength of structural steel through severe plastic deformation based thermomechanical treatment
M Nagaraj, B Ravisankar
Materials Science and Engineering: A 738, 420-429 , 2018
2018
Citations: 26
Investigation on the effect of ECAP routes on the wear behavior of AA2014
SP Divya, M Nagaraj, M Kesavamoorthy, SA Srinivasan, B Ravisankar
Transactions of the Indian Institute of Metals 71 (1), 67-77 , 2018
2018
Citations: 25
Effect of equal channel angular pressing on the microstructure and tribocorrosion characteristics of 316L stainless steel
M Nagaraj, DR Kumar, KS Suresh, S Neelakantan
Vacuum 210, 111908 , 2023
2023
Citations: 18
Effect of severe plastic deformation on microstructural and mechanical properties of structural steel IS2062
M Nagaraj, B Ravisankar
Transactions of the Indian Institute of Metals 71 (9), 2315-2323 , 2018
2018
Citations: 13
Investigation on ECAPed structural steel IS2062 and evaluation of strengthening mechanisms
M Nagaraj, B Ravisankar
Materials Research Express 6 (3), 036504 , 2019
2019
Citations: 12
Effect of severe plastic deformation on microstructure and mechanical behaviour of friction-welded structural steel IS2062
M Nagaraj, B Ravisankar
Transactions of the Indian Institute of Metals 72 (3), 751-756 , 2019
2019
Citations: 8
Investigation on wear and corrosion behavior of equal channel angular pressed aluminium 2014 alloy
SP Divya, G Yoganandan, JN Balaraju, SA Srinivasan, M Nagaraj, ...
IOP Conference Series: Materials Science and Engineering 314 (1), 012024 , 2018
2018
Citations: 5
Correlation of microstructure and bio-tribocorrosion behavior of equal channel angular pressed pure titanium
M Nagaraj, S Neelakantan
Materials Today Communications 35, 106078 , 2023
2023
Citations: 4
Thermal stability and mechanical behaviour of equal channel angular pressed structural steel IS2062
M Nagaraj, P Deena, B Ravisankar
Transactions of the Indian Institute of Metals 72 (10), 2581-2589 , 2019
2019
Citations: 2
Experimental investigations on joining of equal channel angular pressed structural steel IS2062 with friction welding method
M Nagaraj, B Ravisankar
Transactions of the Indian Institute of Metals 74 (6), 1447-1454 , 2021
2021
Citations: 1
Influence of process variables on dissimilar welding of titanium tube to stainless steel tube plate using an aluminium interlayer via a novel friction external tool process
M Rejil, M Kumaran, MJ Santosh, N Murugan
Welding in the World, 1-15 , 2026
2026