Surface modification, coatings, metal additive manufacturing, EDM
41
Scopus Publications
836
Scholar Citations
16
Scholar h-index
21
Scholar i10-index
Scopus Publications
Optimizing EDM of Gunmetal with Al2O3-Enhanced Dielectric: Experimental Insights and Machine Learning Models Saumya Kanwal, Usha Sharma, Saurabh Chauhan, Anuj Kumar Sharma, Jitendra Kumar Katiyar, Rabesh Kumar Singh, Shalini Mohanty Materials, 2025 This study investigates the optimization of electric discharge machining (EDM) parameters for gunmetal using copper electrodes in two different dielectric environments, which are conventional EDM oil and EDM oil infused with Al2O3 nanoparticles. A Taguchi L27 orthogonal array design was used to evaluate the effects of current, voltage, and pulse-on time on Material Removal Rate (MRR), Electrode Wear Rate (EWR), and surface roughness (Ra, Rq, and Rz). Analysis of Variance (ANOVA) was used to statistically evaluate the influence of each parameter on machining performance. In addition, machine learning models including Linear Regression, Ridge Regression, Support Vector Regression, Random Forest, Gradient Boosting, and Neural Networks were implemented to predict performance outcomes. The originality of this research is not only rooted in the introduction of new models; rather, it is also found in the comparative analysis of various machine learning methodologies applied to the performance of electrical discharge machining (EDM) utilizing Al2O3-enhanced dielectrics. This investigation focuses specifically on gunmetal, a material that has not been extensively studied within this framework. The nanoparticle-enhanced dielectric demonstrated improved machining performance, achieving approximately 15% higher MRR, 20% lower EWR, and 10% improved surface finish compared to conventional EDM oil. Neural Networks consistently outperformed other models in predictive accuracy. Results indicate that the use of nanoparticle-infused dielectrics in EDM, coupled with data-driven optimization techniques, enhances productivity, tool life, and surface quality.
Experimental Investigation of Al2O3 Nano-Powder-Mixed Dielectric in EDM-Assisted Micro-Milling Sharad Yadav, Deepak Agarwal, Anuj Kumar Sharma, Rabesh Kumar Singh, Saurabh Chauhan, Shalini Mohanty Micromachines, 2025 This paper investigates the use of Al2O3 nano-powder-stirred micro-EDM process for generating micro-channels. This study focuses on the effect of critical machining process parameters, such as capacitance levels and nano-powder concentration, on the micro-channel fabrication performance in terms of TWR, MRR, depth, and width. A two-stage nested ANOVA is employed to understand the effect of powder concentration within different capacitance levels. The results show that the powder concentration significantly influences the system’s performance in conjunction with the capacitance. At low (100 pF) and high (1000 pF) capacitance, the addition of Al2O3 nano-powder increases the MRR, depth, and width but decreases TWR up to a concentration of 1.0 g/L. A desirability function analysis (DFA) tool identified the best overall performance from 14 experiments, revealing that 100 pF and 1 g/L yield the optimal outcomes.
Study on the Effect of Carbon-Fiber-Reinforced Composites on Tribological Properties Shalini Mohanty, Adrian Murphy, Rashi Tyagi Tribological Aspects of Additive Manufacturing, 2024 Polymer additive manufacturing (AM) has made significant progress in recent decades, but material properties, production speed, and part size constraints have limited it. As a result, it has mainly been used for rapid prototyping instead of the full-scale production of end-use components. Carbon fiber, however, offers several advantages, including low density, coefficient of thermal expansion, and high thermal conductivity. It can elevate polymer-based AM from simply achieving form and fit to achieving fit and function. Integrating carbon fiber into AM processes can lead to improved material characteristics, reduced production time compared to traditional subtractive methods, and decreased warping issues. This, in turn, allows for creating larger and more complex components. As a result, incorporating carbon fiber into various AM technologies has garnered increasing attention and interest within both academic and industrial circles. In the present chapter, a brief discussion on the effect of carbon fiber reinforcement on tribological properties of the additive manufactured CFRP composites is carried out.
Electroless Ni-P-MoS2 composite coating of Al-alloys: effect of surface textures and bath composition Shalini Mohanty, Garima Singh, Suryank Dwivedi, Amit Rai Dixit, Rabesh Kumar Singh Physica Scripta, 2023 The present work assesses the effect of textures and bath composition on Ni-P-MoS2 electroless composite coating. Aluminium alloys are subjected to textures (through electrical discharge machine) for using as substrate material in the present context of study. A comparison study is conducted to evaluate the effect of coatings on textured and non-textured surfaces prepared in two different baths (oxalic acid and hydrazine). Different surface characterization has been carried out including micro-hardness, surface roughness, topography, morphology, tribology through micro-scratch test, and composition analysis (using Energy Dispersive Spectroscopy) in the study. Results indicate that the textured coated surfaces impart better wear-resistant properties than those of coatings produced in non-textured ones. Moreover, the coating prepared using oxalic acid bath imparts better micro-hardness and tribological properties than those of hydrazine bath. The elemental presence of Mo, S, Ni and P was affirmed through EDS mapping, indicates transference of MoS2 particles on to the coated surfaces. The micro-hardness of different coated specimen prepared using oxalic acid bath range from 53.55 HV0.2 to 71.31 HV0.2 for non-textured samples and 70.47 HV0.2 to 113.52 HV0.2 for textured ones. It varied from 53.68 HV0.2 to 68.85 HV0.2 for non-textured surfaces and 63.03 HV0.2 to 98.27 HV0.2 for textured surfaces in hydrazine bath. The addition of MoS2 powder in the electroless bath account for the deposition of a tribo-adaptive layer on Al-alloys.
Metallic Coatings through Additive Manufacturing: A Review Shalini Mohanty, Konda Gokuldoss Prashanth Materials, 2023 Metallic additive manufacturing is expeditiously gaining attention in advanced industries for manufacturing intricate structures for customized applications. However, the inadequate surface quality has inspired the inception of metallic coatings through additive manufacturing methods. This work presents a brief review of the different genres of metallic coatings adapted by industries through additive manufacturing technologies. The methodologies are classified according to the type of allied energies used in the process, such as direct energy deposition, binder jetting, powder bed fusion, hot spray coatings, sheet lamination, etc. Each method is described in detail and supported by relevant literature. The paper also includes the needs, applications, and challenges involved in each process.
Electroless Ni-P-MoS2-Al2O3 Composite Coating with Hard and Self-Lubricating Properties Shalini Mohanty, Naghma Jamal, Alok Kumar Das, Konda Gokuldoss Prashanth Materials, 2022 The work aimed to produce Ni-P-MoS2-Al2O3 on Al-7075 alloys with multiple attributes through an electroless (EL) plating route. The effects of additives (MoS2 and Al2O3) in the EL bath on the surface morphology, topography, hardness, composition (phase and elemental), roughness, wettability, and coating thickness were evaluated. Results indicate a substantial enhancement in microhardness of the EL-coated surfaces by 70% (maximum hardness = ~316 HV) using powders, and 30% (244 HV) without powders. The maximum coating thickness and water contact angle obtained with powders were 6.16 μm and 100.46°, respectively. The coefficient of friction for the samples prepared using powders was 0.12, and for the base material it was 0.18. The compositional analysis through EDS and XRD suggested the incorporation of a hard and lubricious layer on the EL-coated surface owing to the presence of different phases of Al, Mo, P, Zn, O, and S. Therefore, the resulting coating surfaces impart hardness, self-lubrication, hydrophobicity, and wear resistance simultaneously.
Optimizing EDM of Gunmetal with Al 2 O 3 -Enhanced Dielectric: Experimental Insights and Machine Learning Models S Kanwal, U Sharma, S Chauhan, AK Sharma, JK Katiyar, RK Singh, ... Materials 18 (19), 4578 , 2025 2025 Citations: 2
Experimental Investigation of Al 2 O 3 Nano-Powder-Mixed Dielectric in EDM-Assisted Micro-Milling S Yadav, D Agarwal, AK Sharma, RK Singh, S Chauhan, S Mohanty Micromachines 16 (7), 725 , 2025 2025 Citations: 2
Study on the Effect of Carbon-Fiber-Reinforced Composites on Tribological Properties S Mohanty, A Murphy, R Tyagi Tribological Aspects of Additive Manufacturing, 97-108 , 2024 2024 Citations: 2
Electroless Ni-P-MoS 2 composite coating of Al-alloys: effect of surface textures and bath composition S Mohanty, G Singh, S Dwivedi, AR Dixit, RK Singh Physica Scripta 98 (10), 105951 , 2023 2023 Citations: 4
Thank You to Our Volunteer Reviewers R Asthana Journal of Materials Engineering and Performance 32 (18), 8027 , 2023 2023
Effect of process parameters on the properties of β-Ti-Nb-based alloys fabricated by selective laser melting: A review S Subramanian, S Mohanty, KG Prashanth Materials Today: Proceedings , 2023 2023 Citations: 15
Selective laser melting of Inconel 718: Effect of thermal treatment on mechanical properties S Mohanty, HS Maurya, KG Prashanth Materials Today: Proceedings , 2023 2023 Citations: 2
Metallic coatings through additive manufacturing: a review S Mohanty, K Gokuldoss Prashanth Materials 16 (6), 2325 , 2023 2023 Citations: 35
Comparative study on electroless composite coatings of textured and untextured Al-substrates G Singh, S Mohanty, RK Singh, AR Dixit, AK Sharma Materials Today: Proceedings 80, 233-240 , 2023 2023 Citations: 5
Electroless Ni-P-MoS 2 -Al 2 O 3 Composite Coating with Hard and Self-Lubricating Properties S Mohanty, N Jamal, AK Das, KG Prashanth Materials 15 (19), 6806 , 2022 2022 Citations: 8
Parametric analysis to enhance the printability in metal with electrochemical additive manufacturing M Singh, S Mohanty, AK Das Materials Letters 322, 132518 , 2022 2022 Citations: 5
Sustainable surface modification of Ti-alloy using powder mixed in bio-dielectrics through micro-electrical discharge coating process P Kiran, S Mohanty, AK Das Journal of Cleaner Production 362, 132375 , 2022 2022 Citations: 19
Surface modification through sustainable micro-EDM process using powder mixed bio-dielectrics P Kiran, S Mohanty, AK Das Materials and Manufacturing Processes 37 (6), 640-651 , 2022 2022 Citations: 54
Surface integrity of tribo-adaptive layer prepared on Ti6Al4V through μEDC process S Mohanty, AK Das, AR Dixit Surface and Coatings Technology 429, 127922 , 2022 2022 Citations: 30
Experimental investigation of powder mixed micro-electrical discharge drilling on SS304 substrate S Hazra, S Mohanty, S Kumar, R Basak, AK Das Materials Today: Proceedings 62, 270-275 , 2022 2022 Citations: 13
Selective surface modification of SS304 using hybrid powder-mixed EDC process A Yadav, S Mohanty, S Dwivedi, AR Dixit Surface Engineering 38 (1), 8-21 , 2022 2022 Citations: 21
Surface integrity study of TiO2 based Sol-gel spin coatings on SS316L P Kumar, AK Das, S Mohanty Materials Letters 303, 130553 , 2021 2021 Citations: 9
Influence of tool materials on surface modification using μEDC process S Mohanty, AK Das, AR Dixit Surface Engineering 37 (9), 1084-1097 , 2021 2021 Citations: 22
Micro Electro-Fabrication T Saleh, MSM Ali, K Takahata Elsevier , 2021 2021 Citations: 10
Enhancement of Surface Properties of High Speed Steel Using Powder Mixed Micro-electrical Discharge Process S Mohanty, P Bhattacharyya, AK Das, AR Dixit International Conference on Manufacturing Engineering and Materials, 361-370 , 2021 2021
MOST CITED SCHOLAR PUBLICATIONS
Surface modification of Ti-alloy by micro-electrical discharge process using tungsten disulphide powder suspension S Mohanty, V Kumar, AK Das, AR Dixit Journal of Manufacturing Processes 37, 28-41 , 2019 2019 Citations: 100
Multi-objective parametric optimization of nano powder mixed electrical discharge machining of AlSiCp using response surface methodology and particle swarm optimization S Mohanty, A Mishra, BK Nanda, BC Routara Alexandria Engineering Journal 57 (2), 609-619 , 2018 2018 Citations: 94
Surface modification of titanium alloy using hBN powder mixed dielectric through micro-electric discharge machining D Sharma, S Mohanty, AK Das Surface and Coatings Technology 381, 125157 , 2020 2020 Citations: 91
Surface modification through sustainable micro-EDM process using powder mixed bio-dielectrics P Kiran, S Mohanty, AK Das Materials and Manufacturing Processes 37 (6), 640-651 , 2022 2022 Citations: 54
A review on machining of metal matrix composites using nanoparticle mixed dielectric in electro-discharge machining S Mohanty, BC Routara International Journal of Automotive and Mechanical Engineering 13 (2), 3518-3539 , 2016 2016 Citations: 51
Micro-electrical discharge coating of Titanium alloy using WS 2 and Brass P/M electrode AR Siddique, S Mohanty, AK Das Materials and Manufacturing Processes 34 (15), 1761-1774 , 2019 2019 Citations: 48
Surface integrity and residual stress analysis of μEDM coated Ti-alloy miniature components S Mohanty, AK Das, AR Dixit Materials and Manufacturing Processes 36 (1), 48-58 , 2021 2021 Citations: 38
Metallic coatings through additive manufacturing: a review S Mohanty, K Gokuldoss Prashanth Materials 16 (6), 2325 , 2023 2023 Citations: 35
Production of hard and lubricating surfaces on miniature components through micro-EDM process S Mohanty, B Bhushan, AK Das, AR Dixit The International Journal of Advanced Manufacturing Technology 105 (5), 1983 … , 2019 2019 Citations: 31
Surface integrity of tribo-adaptive layer prepared on Ti6Al4V through μEDC process S Mohanty, AK Das, AR Dixit Surface and Coatings Technology 429, 127922 , 2022 2022 Citations: 30
Influence of tool materials on surface modification using μEDC process S Mohanty, AK Das, AR Dixit Surface Engineering 37 (9), 1084-1097 , 2021 2021 Citations: 22
Selective surface modification of SS304 using hybrid powder-mixed EDC process A Yadav, S Mohanty, S Dwivedi, AR Dixit Surface Engineering 38 (1), 8-21 , 2022 2022 Citations: 21
Sustainable surface modification of Ti-alloy using powder mixed in bio-dielectrics through micro-electrical discharge coating process P Kiran, S Mohanty, AK Das Journal of Cleaner Production 362, 132375 , 2022 2022 Citations: 19
Experimental investigation of machining characteristics for Al-SiC12% composite in Electro-discharge machining S Mohanty, BC Routara, RK Bhuayan Materials Today: Proceedings 4 (8), 8778-8787 , 2017 2017 Citations: 18
Study of machining characteristics of Al-SiCp12% composite in nano powder mixed dielectric electrical discharge machining using RSM S Mohanty, BC Routara, BK Nanda, DK Das, AK Sahoo Materials Today: Proceedings 5 (11), 25581-25590 , 2018 2018 Citations: 17
Surface alloying using tungsten disulphide powder mixed in dielectric in micro-EDM on Ti6Al4V S Mohanty, V Kumar, R Tyagi, S Kumar, B Bhushan, AK Das, AR Dixit IOP Conference Series: Materials Science and Engineering 377 (1), 012040 , 2018 2018 Citations: 16
RSM and Fuzzy logic approaches for predicting the surface roughness during EDM of Al-SiCp MMC RK Bhuyan, S Mohanty, BC Routara Materials Today: Proceedings 4 (2), 1947-1956 , 2017 2017 Citations: 16
Effect of process parameters on the properties of β-Ti-Nb-based alloys fabricated by selective laser melting: A review S Subramanian, S Mohanty, KG Prashanth Materials Today: Proceedings , 2023 2023 Citations: 15
Electroless Ni–Al 2 O 3 –WS 2 Composite Coating on Aluminum Substrate D Taye, S Mohanty, AK Das, NK Singh Transactions of the Indian Institute of Metals 72 (9), 2281-2292 , 2019 2019 Citations: 15
Experimental investigation of powder mixed micro-electrical discharge drilling on SS304 substrate S Hazra, S Mohanty, S Kumar, R Basak, AK Das Materials Today: Proceedings 62, 270-275 , 2022 2022 Citations: 13