Optimization of tribo-mechanical properties of boron carbide reinforced magnesium metal matrix composite

Ravichandran, M.; Veerappan, G.; Dhinakaran, V.; Katiyar, Jitendra Kumar

doi:10.1177/13506501211030070

Cited by 12 publications

(5 citation statements)

References 32 publications

(39 reference statements)

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“…The hard reinforcement particles in the structure resist plastic deformation under local loads [80,81]. The uniform distribution of reinforcement particles activates the Orowan mechanism, hinders dislocation movement, and induces dispersion strengthening [39,40,53,82]. The increase in hardness is also attributed to the grain size reduction of the matrix by reinforcement particles [52,55,73].…”

Section: Hardnessmentioning

confidence: 99%

Tribological aspects of magnesium matrix composites: A review of recent experimental studies

Aydın

2023

Tribology - Materials, Surfaces & Interfaces

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The demand for magnesium (Mg) alloys is increasing in many industries, such as automotive and aerospace, thanks to their low density and high specific strength. However, the poor tribological performance of Mg alloys is one of the most important disadvantages that limit their widespread use. Researchers have developed different approaches to improve the wear performance of Mg alloys, such as alloying, coatings, surface modifications and composite production. Wear performance of systems with sliding parts are crucial for a lifetime and energy efficiency. The development of Mg matrix composites can significantly reduce energy loss by reducing damage from friction and wear. For this reason, it is crucial to understand the wear behaviour of recent Mg matrix composites. The effect of different parameters such as load, sliding speed, reinforcement content, reinforcement type and temperature on the wear performance of Mg matrix composites were investigated.

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Section: Hardnessmentioning

confidence: 99%

Tribological aspects of magnesium matrix composites: A review of recent experimental studies

Aydın

2023

Tribology - Materials, Surfaces & Interfaces

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“…15,16,45 In this context, the iterative FE simulations that are carried out to parameter calibration purposes, consider the discretized version of the actual microstructure, which can be acquired through microscopy and micro-computed tomography techniques. [5][6][7][8][14][15][16]21,[46][47][48][49][50] Repetitive numerical analyses can also be carried out during the design phase of composite components, searching for the material characteristics that optimize the performance of the final product. Also in this case, the design space to be explored is often made of a few varying parameters.…”

Section: Introductionmentioning

confidence: 99%

Surrogate analytical models of damage localization in metal matrix composites

Bolzon

Pitchai

Talassi

2023

Journal of Composite Materials

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Several parameters entering the constitutive laws of metal matrix composites are not amenable to direct measurement. Their determination is therefore demanded to indirect identification procedures, based on the comparison between the output of some experimental works and the results of the iterative simulation of the performed tests. Largely repetitive numerical analyses can also support the optimized design of composite microstructures, the understanding of the actual stress-transfer mechanisms, and virtual testing. Surrogate analytical models can replace effectively non-linear finite element (FE) computations in parametric studies and identification procedures, reducing execution times and costs without compromising the accuracy of the results. In this context, a frequently used approach consists of the interpolation, by means of radial basis functions (RBFs), of data filtered by proper orthogonal decomposition (POD). This methodology is often used to reproduce the smooth output of different mechanical systems. This work is rather focused on the homogenized response of damaging metal matrix composites subjected to strain localization phenomena, and explores the accuracy achievable in these situations by the POD-RBF approximation of more traditional FE analyses. In all considered cases, the POD-RBF results are accurate, and able to distinguish between apparently similar situations. The approach is flexible, and the performance of the surrogate models can be tailored to the requirements of each application. In particular, various analytical approximations can be introduced to support the design of new microstructures and material couplings, and to understand the role of any material and/or geometry imperfections resulting from the production processes.

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“…While fiber reinforcement in Mg MMCs improves tensile strength at the cost of ductility. Ravichandran et al [11] depicted that increase in the B 4 C concentration in B 4 C/Mg MMC resulted in the increase of compressive strength and hardness. Fang et al [12] illustrated that TiB 2 addition to Mg alloys aids for the grain refinement and also helps to enhance strength and ductility simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Investigation on Microstructure and Tensile Fractography of RE Oxides (CeO2/Y2O3) Reinforced AZ91D Magnesium Matrix Composites

Gotagunaki¹,

Mudakappanavar²,

Suresh

2022

Frattura Ed Integrità Strutturale

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The current work aims to investigate the mechanical properties of rare oxide reinforced Mg alloy based MMCs. Magnesium matrix considered in the study is AZ91D alloy, whereas rare earth oxides reinforced were CeO2 and Y2O3. The Y2O3 particulate reinforcement percentage was varied from 1 to 3% in the steps of 1% to study its influence on mechanical properties of MMCs. Stir casting route was adopted to fabricate sample for study. Microstructure analysis illustrated the uniform distribution of particulate in matrix alloys. The obtained results revealed the enhanced mechanical properties such as tensile strength, yield strength, elongation and hardness of MMCs due to increased percentage of reinforcement. Fractography analysis of fracture surfaces demonstrated the microcracks and cleavage were dominant in pure alloy. While particle debonding, extensive plastics deformation were prominent in-addition to microcracks in MMCs.

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Optimization of tribo-mechanical properties of boron carbide reinforced magnesium metal matrix composite

Cited by 12 publications

References 32 publications

Tribological aspects of magnesium matrix composites: A review of recent experimental studies

Tribological aspects of magnesium matrix composites: A review of recent experimental studies

Surrogate analytical models of damage localization in metal matrix composites

Investigation on Microstructure and Tensile Fractography of RE Oxides (CeO2/Y2O3) Reinforced AZ91D Magnesium Matrix Composites

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