Mechanical Engineering, Metals and Alloys, Metals and Alloys
6
Scopus Publications
59
Scholar Citations
4
Scholar h-index
1
Scholar i10-index
Scopus Publications
Enhancing microstructural and mechanical properties of magnesium AZ31 matrix composites through friction stir processing incorporating silicon carbide, titanium carbide, and graphite particles Boopathiraja K P, R Ramamoorthi, P Hariprasad, Felix Sahayaraj Arockiasamy Materials Research Express, 2024 The present study focuses on investigating the effect of reinforcement on the microstructure and mechanical properties of friction-stir-processed magnesium hybrid composites. The groove width (0, 0.7, 1.1, 1.7, and 2.3 mm) of the Magnesium AZ31 plates was varied by varying the volume fractions (0, 5, 10, 15, and 20 vol%) of Silicon Carbide (SiC), Titanium Carbide (TiC), and Graphite (Gr) particle reinforcements in the hybrid composite. Single-pass processing was suspended using a cylindrical tool shoulder with a rotational speed, transverse velocity, and axial pressure of 1000 rpm, 30 mm min−1, and 6 kN, respectively. The optical micrograph clearly shows that a non-cluster zone (reinforcement particles are uniformly distributed without agglomeration) was identified in the processed region of the least concentrated composites. The results revealed that a peak tensile strength of 293.546 ± 5.12 MPa was attained for the combination of 10 vol% composites, and a Vickers hardness number of 86.53 HV was achieved for the 20 vol.% composites. The fracture surface morphology was analyzed using a Scanning Electron Microscope (SEM). The mode of tensile fractography was ductile for the least composite and transformed into a brittle mode of failure with the addition of reinforcements.
Investigation of Wear Behavior in Ni-Ti-SiC Composites Fabricated via Microwave Sintering P. Hariprasad, K. Kumaresan, Bader Alqahtani, Abdulkarim Alansari Materials Research, 2024 The combination of nickel (Ni) and titanium alloy (Ti) with silicon carbide (SiC) reinforcement offers promising avenues for research and applications due to their exceptional resistance to heat, oxidation, and corrosion properties. These studies investigate the influence of silicon carbide (SiC) on Ni-Ti matrix materials, focusing on Ni-Ti-SiC composites fabricated through the microwave sintering method. The microstructure analysis reveals uniform dispersion of Ni and Ti, indicating desirable properties. This study utilized the Taguchi methodology to optimize the wear rate of Ni-Ti-SiC composites by examining sliding distance, load, and sliding velocity as essential variables. The experimental findings showed a minimum wear rate of 0.014 mg/m under certain conditions and a maximum of 0.052 mg/m under other conditions. The optimal wear rate was determined using the signal-to-noise ratio (SN ratio) at a sliding distance of 1500 m, load of 20N, and sliding velocity of 1 m/s. Sliding distance was found to be the most significant factor affecting wear rate (55%), followed by load (32%) and sliding velocity (7.3%) according to the variance analysis. Scanning electron microscope (SEM) analysis showed increased wear grooves and a smoother surface in the specimen with the lower wear rate. Atomic force microscopy was used to analyze the worn surfaces, revealing detailed 3D image patterns. Surface parameters showed significant variations between surfaces with higher and lower wear rates. Surfaces with lower wear rates exhibited minimum average roughness (6.69 nm) and maximum peak-to-valley roughness (88.65 nm).
Surface and Wear Investigation on Microwave Sintered Nitinol Composite P. Hariprasad, K. Kumaresan, M. Vijayakumar, G. Kumaresan Materials Research, 2022 The present research of the article is used to describe the microwave sintering of nitinol composite and its surface topography analysis by atomic microscopy (AFM). Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) technique is used to analyze the characterization and alloying composition of the composite. Silicon carbide is the reinforcing particle between nickel and titanium. Wear test is conducted to investigate the worn surface morphology of the sintered specimen. The synthesized composite has exceptional material properties such as ultimate tensile strength of 1020MPa, 16% of elongation to fracture, 7.51 g/cc of density and hardness of 310 HV. Low wear rate of 0.01 mg/m is perceived at minimum load and minimum sintering time. Surface roughness is varied from 22.87 to 54.05nm at different sintering time. Maximum roughness height of 327.6 nm is observed in the surface profile of the composite.
Mechanical and Morphological Studies of Sansevieria trifasciata Fiber-Reinforced Polyester Composites with the Addition of SiO2and B4C P. Hariprasad, M. Kannan, C. Ramesh, A. Felix Sahayaraj, I. Jenish, Fayaz Hussain, Nidhal Ben Khedher, Attia Boudjemline, V. Suresh Advances in Materials Science and Engineering, 2022 The impact of SiO2 and B4C on mechanical and morphological studies of Sansevieria trifasciata fiber (STF) reinforced in polyester composites is investigated in this study. STF fibers are reinforced with polyester composites with the addition ceramic fillers such as SiO2 and B4C in various weight fractions to improve tensile, flexural, and impact characteristics. The morphological properties are studied with the help of scanning electron microscopy (SEM). The improved mechanical properties were tensile strength (44.92 MPa), flexural strength (103.58 MPa), and impact strength (27.4 kJ/m2) obtained for 20 wt.% STF fiber and 15 wt.% SiO2 reinforcement with the polyester matrix. The mechanical characteristics of the composites were significantly influenced by increasing SiO2 up to 15 wt.%.
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Enhancing microstructural and mechanical properties of magnesium AZ31 matrix composites through friction stir processing incorporating silicon carbide, titanium carbide, and … B KP, R Ramamoorthi, P Hariprasad, FS Arockiasamy Materials Research Express 11 (7), 076507 , 2024 2024.0 Citations: 6
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[Retracted] Mechanical and Morphological Studies of Sansevieria trifasciata Fiber‐Reinforced Polyester Composites with the Addition of SiO2 and B4C P Hariprasad, M Kannan, C Ramesh, A Felix Sahayaraj, I Jenish, ... Advances in Materials Science and Engineering 2022 (1), 1634670 , 2022 2022.0 Citations: 23
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Smart Energy Management and Automation Systems: Emerging Directions in Manufacturing and the Oil–Gas–Chemical Industries H Perumal, A Jeevarathinam, R Karan, P Gokulnath, P Prabhu, ... SAP Superintelligence Series 3, 36-36 , 2026 2026.0
A Unified Review of Thermal System Optimization and Automation Technologies Shaping Modern Marine and Oil–Gas Engineering H Perumal, R Premkumar, V Chinnadurai, RS Avinand, K Balakumar, ... SAP Superintelligence Series 3, 43-43 , 2026 2026.0
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