Article
Materials Science, Multidisciplinary
Peyman Asghari-Rad, Nhung Thi-Cam Nguyen, Yongju Kim, Alireza Zargaran, Praveen Sathiyamoorthi, Hyoung Seop Kim
Summary: The study compared the microstructural and hardness evolutions of a nanostructured CoCrFeMnNi high-entropy alloy reinforced with TiC nanoparticles with a monolithic high-entropy alloy sample. The composite showed enhanced hardness and retarded grain growth, indicating potential for producing various high-entropy alloy-matrix composites using the HPT cold consolidation fabrication route.
Article
Materials Science, Multidisciplinary
Tim Vogel, Yuyang Liu, Qiang Guo, Di Zhang
Summary: A breakthrough was achieved in the strength-conductivity trade-off in cold wire drawn reduced graphene oxide-aluminum composite, showing a strength-conductivity combination comparable or even superior to conventional aluminum alloy conductors.
MATERIALS & DESIGN
(2021)
Article
Materials Science, Multidisciplinary
Cong-Cong Wang, Cheng-Chang Jia, Peng Gao, Guo-Sheng Gai, Yu-Fen Yang
Summary: By modifying polyhedral tungsten powder, spherical tungsten powder with a smaller average diameter can be obtained, where processing time plays a crucial role. The exponential decay model provides a good description of the relationship between average diameter and processing time.
Article
Chemistry, Physical
Guo-Jiun Shu, Cun-Jheng Huang, Wei-Xiang Chien, Pei Wang, Ming-Wei Wu
Summary: The powder metallurgy process was successfully used to manufacture two Fe-based laminated metal composites, showing good performance and demonstrating feasibility in production.
Article
Chemistry, Physical
Lukasz Zrodowski, Rafal Wroblewski, Tomasz Choma, Bartosz Moronczyk, Mateusz Ostrysz, Marcin Leonowicz, Wojciech Lacisz, Piotr Blyskun, Jan S. Wrobel, Grzegorz Cieslak, Bartlomiej Wysocki, Cezary Zrodowski, Karolina Pomian
Summary: The newly developed ultrasonic atomization method shows great promise in producing powders suitable for additive manufacturing, with highly spherical particles produced through electric arc melting and standing wave vibrations. This method has the potential to be a valuable tool for material scientists in developing powders with tailored chemical composition, size, and structure.
Article
Materials Science, Multidisciplinary
Jialong Kang, Yaoran Cui, Jingjing Song, Hongxia Mao, Guibao Qiu, Zhenyun Tian, Feng Zhang
Summary: The use of SiC as a reinforcing agent in porous titanium materials can significantly improve their mechanical properties, with the compressive strength reaching its peak when the SiC content is 3wt.%. This study demonstrates that the addition of SiC enhances the densification, sintering properties, hardness, and strength of porous titanium.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Tatiana Koltsova, Elizaveta Bobrynina, Aleksei Vozniakovskii, Tatiana Larionova, Olga Klimova-Korsmik
Summary: Copper-based composites strengthened with fullerene soot nanoparticles were prepared using two different methods. The thermal conductivity of the composites was studied and compared. The results showed that the composite obtained by molecular level mixing had a thermal conductivity described well by Maxwell's model, while the composite produced by mechanical mixing had a significantly lower thermal conductivity.
Article
Chemistry, Multidisciplinary
Iris Carneiro, Jose V. Fernandes, Sonia Simoes
Summary: This study investigated the deformation behavior of aluminium reinforced by carbon nanotubes (Al/CNTs) nanocomposites during cold rolling. Deformation processes after production by conventional powder metallurgy routes can improve the microstructure and mechanical properties by reducing porosity. Metal matrix nanocomposites have great potential in producing advanced components, especially in the mobility industry, with powder metallurgy being one of the most commonly used production processes. Therefore, understanding the deformation behavior of nanocomposites is increasingly important. In this study, nanocomposites were produced via powder metallurgy and advanced characterization techniques were used to examine the microstructure of the powders and nanocomposites. The powder metallurgy route followed by cold rolling is reliable for Al/CNTs nanocomposites. The microstructural characterization revealed that the nanocomposites have a different crystallographic orientation than the Al matrix. CNTs in the matrix influence grain rotation during sintering and deformation. Mechanical characterization showed an initial decrease in hardness and tensile strength for the nanocomposites, which was attributed to the significant Bauschinger effect. The difference in mechanical properties between the nanocomposites and Al matrix was attributed to distinct texture evolution during cold rolling.
Article
Materials Science, Multidisciplinary
Tao Wang, Yufeng Huang, Yunzhu Ma, Lei Wu, Huanyuan Yan, Chao Liu, Yang Liu, Bing Liu, Wensheng Liu
Summary: Through cold rolling deformation, the microstructure of P/M aluminum alloy gradually transforms, with reduced grain size, increased relative density, and enhanced tensile strength. The improved mechanical properties mainly result from the combined effects of increased microstructural compactness and deformation strengthening.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Automation & Control Systems
Saeed Aghajani, Vahid Pouyafar, Ramin Meshkabadi, Alex A. A. Volinsky, Amir Bolouri
Summary: The addition of reinforcing phases can greatly improve the mechanical properties and physical characteristics of aluminum alloy composites. A combination of semisolid metal powder processing and powder metallurgy was used to process and manufacture Al7075-Al2O3 composites with a high reinforcement fraction. The effects of processing parameters on the microstructures and mechanical properties of the composites were discussed. The results showed that semisolid metal powder processing has great potential for fabricating high loading Al2O3 in Al7075 matrix.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Y. Z. Tian, S. Y. Peng, Y. Yang, X. Y. Pang, S. Li, M. Jiang, H. X. Li, J. W. Wang, G. W. Qin
Summary: In this study, Cu-10Fe composite was prepared by powder rolling strategy and cold rolling for further investigation of its composition distribution, microstructure evolution, electrical property and mechanical property. The results showed that the mutual diffusion of Cu and Fe elements during the powder rolling process was well controlled, which maintained the good electrical conductivity of the Cu matrix. The homogeneous distribution of Fe particles in the Cu matrix eliminated the Fe macrosegregation phenomenon during casting. The Cu-10Fe composite exhibited a tensile strength of 507 MPa and electrical conductivity of 80.1% IACS. The strengthening mechanisms and origins of exceptional electrical properties were discussed.
SCRIPTA MATERIALIA
(2023)
Article
Materials Science, Ceramics
X. W. Nie, Q. Lu
Summary: The ZrO2-SiC/MoSi2 composite ceramics were prepared by powder metallurgy. The room temperature and high temperature fracture toughness of various composite ceramics were measured, and the synergistic effects mechanism of nano-ZrO2 and SiC particles on the fracture toughness of MoSi2 nanocomposite ceramics was discussed.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
P. M. Gopal, K. Soorya Prakash, Emad Makki, V. Kavimani, Jayant Giri, T. Sathish
Summary: Higher silica content CRT panel glass is used as reinforcement material in magnesium matrix composites. Wear resistant magnesium hybrid composite is formulated by reinforcing silica rich E-waste CRT panel glass powder and boron nitride solid lubricant. The addition of CRT and BN content enhances the hardness and wear resistance of the composite, but excessive addition increases the porosity. Moreover, the addition of CRT and BN improves the corrosion behavior of the material.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Mechanical
Hamza Simsir
Summary: The study aimed to improve the mechanical properties of aluminum and its composites by using nanosized and sub-micron sized carbonaceous additives, specifically hydrothermal carbons (HTCs) synthesized from cellulose and chitosan. The chitosan-derived aggregated spheres of HTCs showed better mechanical, tribological, and corrosive properties compared to the hard spheres.
SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
(2021)
Article
Materials Science, Multidisciplinary
Serhat Sap, Mahir Uzun, Usame Ali Usca, Danil Yu Pimenov, Khaled Giasin, Szymon Wojciechowski
Summary: Copper matrix composites reinforced with Ti-B-SiCp powders were studied for their microstructure, density, hardness, and wear behavior. It was found that hardness increased with reinforcement rate up to 6 wt.% before decreasing, and specific wear rate increased with increasing reinforcement ratio. The lowest friction coefficient and wear temperature were observed at a sintering temperature of 1050 degrees C.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Engineering, Chemical
N. Keerthivasan, V Anandakrishnan
Summary: This study aims to recover valuable titanium carbide particles from scrap of in-situ synthesized AA7075-TiC composites for reuse as reinforcements. The particles were recovered and analyzed for morphologies, and blended with different percentages to investigate the characteristics of the blends. The compressibility behavior of the blends was analyzed using linear and non-linear models, and the effective percentage addition of the particles as reinforcement and the best suitable sintering temperature were determined.
PARTICULATE SCIENCE AND TECHNOLOGY
(2023)
Article
Metallurgy & Metallurgical Engineering
Bharat Kumar Chigilipalli, Anandakrishnan Veeramani
Summary: The study compares the corrosion behavior of alloy 825 produced by wire arc additive manufacturing (WAAM) with that of wrought alloy 825. The results show that the wire arc additively manufactured alloy has a higher corrosion rate.
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS
(2023)
Article
Engineering, Mechanical
S. Satheesh Kumar, M. Meignanamoorthy, M. Ravichandran
Summary: Steam turbine blades wear due to exposure to high pressure and temperature, and this affects power generation. Super alloys like Inconel 625 are used, and Cr3C2 and Stellite coatings are added for better wear resistance. Coatings are deposited using atmospheric plasma spray coating process, and characterization is done using EDAX, SEM, and Vicker's microhardness tester. Friction and wear behavior are studied using pin on disc tribometer, and the impact of coatings on wear is evaluated with SEM and EDAX. The wear caused by sliding of Inconel 625 coated with Cr3C2 and Stellite against EN-8 steel disc at various temperatures is discussed, showing significant wear rate reduction at room temperature with Stellite and at 400 degrees C with Cr3C2.
SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
(2023)
Article
Chemistry, Physical
D. Pritima, G. Veerapppan, M. Ravichandran, S. Rajamuneeswaran
Summary: Powder metallurgy route was used to produce high entropy alloys Co-Cr-Ni-Mn-Fe-SiCx with varying weight percentages of SiC. The distribution of SiC in the HEA matrix was found to be homogeneous and the Co-Cr-Ni-Mn-Fe-4 wt.% SiC alloy sintered at 1350 degrees C exhibited the best corrosion resistance.
Article
Chemistry, Multidisciplinary
Eng Sze Wei, Ramasamy Kavitha, Mohammad Auwal Sa'ad, Pattabhiraman Lalitha, Neeraj Kumar Fuloria, Manickam Ravichandran, Shivkanya Fuloria
Summary: The isolation and characterization of gingipains from the periodontitis-causing bacterium Porphyromonas gingivalis is important for studying its invasion mechanism and potential links to periodontitis, Alzheimer's disease, and cardiovascular disease. This study introduces simpler methods using passive-mediated diffusion gel elution and gelatin zymography for the isolation and characterization of gingipains, which are easier and more cost-effective than traditional chromatographic processes and molecular cloning.
APPLIED SCIENCES-BASEL
(2023)
Article
Materials Science, Multidisciplinary
J. Pratap Kumar, Anil Raj, Arul Kulandaivel, Lakshmana Kumar, V Mohanavel, M. Ravichandran, IvanSunit Rout, S. Prasath
Summary: In this study, the effect of various input parameters on the ultimate tensile strength (UTS) of friction stir welded AA6101-C11000 joint was evaluated. Response surface methodology (RSM) was used to develop a regression equation and determine the optimal FSW parameters for achieving the highest UTS. The experimental results showed that the maximum UTS of the welded joint was 142.69 MPa at 1000 rpm, 40 mm/min, and -1.68 mm tool offset, with a joint efficiency of 82%.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Green & Sustainable Science & Technology
Mahadharsan Ravichandran, K. E. K. Vimal, Vikas Kumar, Onkar Kulkarni, Sundaramali Govindaswamy, Jayakrishna Kandasamy
Summary: This study aims to develop a sustainable reverse supply chain model for a manufacturing company by remanufacturing stator shafts through discrete-event simulation. The study focuses on the comparison of full container load and less than container load shipment scenarios and the analysis of various return cases in terms of time, cost, and carbon emissions.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Materials Science, Multidisciplinary
S. Jayasathyakawin, M. Ravichandran, Sikiru Oluwarotimi Ismail, D. Srinivasan
Summary: This study investigated the microstructure and properties of magnesium alloy (Mg/3Al)-based composites reinforced with hydroxyapatite (HA) using powder metallurgy (PM) method. The addition of HA increased the mechanical strength of the Mg/3Al alloy. The optimal parameters for minimal wear rate and coefficient of friction were determined using the Taguchi method.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
S. Jayasathyakawin, M. Ravichandran
Summary: In this work, a Silicon Carbide (SiC) reinforced Mg/3Al matrix composite was developed using the powder metallurgy method. The friction coefficient (COF) and wear rate (WR) of the composite were studied using a Pin on disc wear tester. The microstructure of the sintered samples was investigated using Scanning Electron Microscope (SEM). The optimal combination of parameters was found using signal-to-noise (S/N) ratio analysis, and the influence of parameters on WR and COF was analyzed through analysis of variance (ANOVA).
Article
Multidisciplinary Sciences
P. P. Shantharaman, V. Anandakrishnan, S. Sathish, M. Ravichandran, R. Naveenkumar, S. Jayasathyakawin, S. Rajesh
Summary: Powder metallurgy was used to synthesize SiC and Y2O3 reinforced aluminium composites with different weight ratios. The composites were studied for density, hardness, mechanical properties, tribological properties, and microstructural characteristics. The addition of SiC and Y2O3 improved the hardness and density of the composites. Increasing the SiC content increased the compressive strength of the composites. The thermal conductivity of the composites decreased with the addition of SiC particles. The samples with 20 wt% SiC content in the Al - 1 wt% Y2O3 matrix exhibited the best properties, including decreased wear rate.
Article
Engineering, Mechanical
S. Sathish, V Anandakrishnan, Manoj Gupta
Summary: A nano magnesium composite was successfully synthesized by adding particles and using the disintegrated metal deposition process. The study of wear behavior showed that increased load had a negative effect on the material's wear, while increased sliding velocity had a positive effect. Post-failure analysis revealed the presence of adhesion, abrasion, delamination, oxidation, and thermal softening on the worn surface of the nano magnesium composite.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2023)
Review
Environmental Sciences
Rasaiah Naveenkumar, Manickam Ravichandran, Ravikumar Harish, Jegan Joywin Ruskin, Nagarajan Pozhingiyarasan, Annadurai Kolanjinathan
Summary: Due to the increase in population, there has been a significant rise in the consumption of non-renewable energy sources, leading to increased pollution and negative impacts on the environment. It is recommended to switch to non-conventional energy sources in order to address this issue. This review article focuses on the design and performance enhancements of solar dryers in food drying applications, providing valuable insights and guidelines for achieving efficient and cost-effective solar drying systems. Overall, this paper highlights the importance of utilizing solar energy for sustainable and eco-friendly food drying processes.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Mechanical
A. Manjunath, V Anandakrishnan, S. Ramachandra, K. Parthiban, S. Sathish
Summary: Additive manufacturing through electron beam is a fast-growing process used in aerospace, automotive, and rapid tooling industries for creating complex shapes. Layer by layer addition of material leads to the variation in properties, resulting in functionally graded materials. Ti-6Al-4V samples were produced using wire electron beam additive manufacturing. Metallurgical analysis revealed the structural behavior, while a standard dry sliding wear test explored the tribological behavior. The wear analysis showed the significant influence of parameters on the wear rate, and the additive manufactured sample exhibited better wear resistance compared to the base alloy. The worn surface and debris analysis identified the mechanisms affecting the wear rate.
Review
Engineering, Mechanical
Dhinakaran Veeman, P. M. Bupathi Ram, Manickam Ravichandran, Jitendra Kumar Katiyar
Summary: This paper explores the application and characteristics of natural fiber composites in various fields, including the properties of the matrix, reinforcement materials, and resin. It also investigates the parameters that affect the performance of these composites and focuses on their tribological behavior. Additionally, it highlights the mechanical performance and metallurgical behavior of these materials.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
(2023)
Article
Multidisciplinary Sciences
C. Gopikrishnan, M. Ravichandran
Summary: AA7075-based composites with varying amounts of MoO3 were prepared and their mechanical and tribological properties were investigated. The composite containing 10% MoO3 exhibited the highest impact strength and porosity. The study also showed that applied load is the primary factor affecting wear rate.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
