Analysis of Fracture Mechanism for Al-Mg/SiC<sub>p</sub> Composite Materials

Maleque, Abdul; Adebisi, Adetayo A.; Izzati, Nabilah

doi:10.1088/1757-899x/184/1/012031

Cited by 17 publications

(8 citation statements)

References 6 publications

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“…4b. Moreso, combination of dimple ductile behaviour of the matrix alloy phase and brittle failure of the reinforcement was observed in samples DPZRB 2 SS2 as also reported by Maleque et al [57]. Particle clustering was noticed in sample DPZRB 2 SS3 which may have occurred due to the insufficient stirring speed and time.…”

Section: Sem Resultssupporting

confidence: 72%

Correlation between theoretical and experimental hardness, elastic modulus of discarded aluminium piston reinforced with zirconium diboride and snail shells

2020

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Aluminium metal matrix composites have gained a lot of attention because of their outstanding properties making them useful for aerospace, automobile and marine applications. Composites are replacing metals as structural materials, and a detailed study of the relationship between hardness and Young's modulus becomes essential. In this paper, the correlation between hardness and elastic modulus of discarded aluminum pistons reinforced with zirconium diboride and snail shells is presented. The theoretical hardness was determined from the ratio of indentation hardness to indentation modulus while elastic modulus was evaluated based on composite equation. The results indicated that hardness and elastic modulus increased with the weight percentage of the composites while the resistance to plastic deformation H 3 / E 2 increased with H. The wide discrepancy between the theoretical and experimental Young's modulus is attributed to the fact that theoretical elastic moduli were obtained from perfect/single crystal materials while experimental values are obtained from polycrystalline/imperfect crystals. The calculated Young's moduli obtained through mixture rule range from 64 to 92 GPa which are higher than 69 GPa of aluminium alloy. It is therefore evident that the composite materials can be used for engineering applications.

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Section: Sem Resultssupporting

confidence: 72%

Correlation between theoretical and experimental hardness, elastic modulus of discarded aluminium piston reinforced with zirconium diboride and snail shells

2020

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“…It also confirmed that the facets and dimples were present. Therefore, the nature of the failure of AA7150-B 4 C is a mixed kind of partially brittle and ductile mode [28].…”

Section: Fracture Surfacementioning

confidence: 99%

Influence of Ultrasonic Vibration towards the Microstructure Refinement and Particulate Distribution of AA7150-B4C Nanocomposites

et al. 2022

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Aluminum-based metal matrix composites with single or multiple ceramic reinforcements are finding application in the aerospace and automobile industries. In this research work, novel AA7150-B4C (aluminium7150 alloy–Boron carbide) nanocomposites were successfully fabricated, through the liquid metallurgy route via stir casting method, with the incorporation of B4C nanoparticles with different weight percentages using a novel sequence of a vortex technique and a double stir casting process with ultrasonication. The formed composites have been thoroughly studied for microstructure refinement, nano-particulate distribution, and bonding with the matrix by making use of the optical microscopy (OM) and scanning electron microscopy (SEM) studies (respectively). In addition, the composites were analyzed for the density, porosity, and elemental composition. Further, the composites were tested for the investigation of mechanical properties, like micro-hardness and tensile strength, to investigate the influence of ultrasonic vibration on the arrangement of B4C nano-particulates. The analysis indicated that the mechanical properties of the AA7150-B4C nanocomposites in as-cast condition significantly improved with a gain of 57.7% in strength and 24.5% in hardness compared to the native AA7150 material.

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“…Maleque et al [15] stated that in composites, materials are combined in such a way as to enable one to make better use of their parent material while minimizing to some extent the effects of their deficiencies.…”

Section: Benefits Of Composite Materialsmentioning

confidence: 99%

“…This is simply obtained by noting the height at which the pendulum is released and the height to which the pendulum swings after it has struck the specimen. The height of the pendulum times the weight of the pendulum produces the potential energy and the difference in potential energy of the pendulum at the start and the end of the test is equal to the absorbed energy [15]. Table 5 shows the result of X-ray fluorescent (XRF) pattern of mango shell ash (MSSA) which reveals that SiO2, has the highest percentage composition followed by CaO, Al2O3, Fe2O3, Mg2O, K2O, ZnO, Na2O and TiO2, as major phases.…”

Section: Determination Of Impact Strengthmentioning

confidence: 99%

Development of Aluminium Based Mango Seed Mangiferaindica Shell Ash (MSSA) Particulate Metal Matrix Composite

Ochuokpa

Sumaila

Adebisi

2021

IJEMM

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A composite material is a combination of two or more chemically distinct and insoluble phases; its properties and structural performance are superior to those of the constituents acting independently. MMCs are made by dispersing a reinforcing material into a metal matrix to improve their properties. They are prepared by powder metallurgy and casting, although several technical challenges exist with casting technology. Achieving a homogeneous distribution of reinforcement within the matrix is one such challenge, and this affects directly on the properties and quality of composite. In this work a composite is developed by adding Mango seed shell Ash (MSSA) particulate in Al- Si-Mg Alloy by mass ratio 5%, 10%, 15% and 20%. The composite was prepared by stir casting technique. It is proposed to use this material for production of motorcycle wheel hub which are subjected to continuous wear as the hubs are in direct contact with the brakes and rotating sprockets. The MSSA, was characterized using X- ray fluorescent (XRF). The result reveals SiO2, has the highest percentage composition followed by CaO, Al2O3, Fe2O3 and Mg2O as major phases. The presents of these hard constituent compounds suggests that the mango seed shell ash can be used as particulate reinforcement in various metal matrices since the chemical composition has similarity with the XRF analysis of Periwinkle shell ash, rice husk, fly ash, and bagasse ash currently used in metal matrix composite. Mechanical tests such as hardness test and impact test were conducted. The results revealed that increase in the percentage of MSSA progressively increased the hardness of the material from 5% wt to a maximum hardness of 43.2 HV at 15% addition of MSSA. This represents a 26.16% improvement over the unreinforced alloy. However, the impact energy progressively decreases of the material from 5%wt of MSSA and later increased to optimum energy at 15% addition of MSSA. From the results it is concluded that composite material such as Al- Si-Mg/ MSSA is one of the options as a material for production of motorcycle hub. The wear test of the composite was then carried out using Taguchi design to optimize the range of MSSA from 5% wt -15% wt., Sliding speed of 5cm/s -20cm/s, sliding distance from 50m to 200m, and the load of 2N, 4N, 6N, & 8N respectively. Analysis of the result of SN ratio for wear rate shows the optimum wear resistant value is in the combination of Load=4N, sliding speed = 10cm/s sliding distance=200m and MSSA=15 wt% These also correspond with the analysis of wear maps & wear rate presented in the diagrams of dynamic friction coefficient (COF) for Al-Si- Mg/ MSSA Composite.

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Analysis of Fracture Mechanism for Al-Mg/SiC_p Composite Materials

Cited by 17 publications

References 6 publications

Correlation between theoretical and experimental hardness, elastic modulus of discarded aluminium piston reinforced with zirconium diboride and snail shells

Correlation between theoretical and experimental hardness, elastic modulus of discarded aluminium piston reinforced with zirconium diboride and snail shells

Influence of Ultrasonic Vibration towards the Microstructure Refinement and Particulate Distribution of AA7150-B4C Nanocomposites

Development of Aluminium Based Mango Seed Mangiferaindica Shell Ash (MSSA) Particulate Metal Matrix Composite

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Analysis of Fracture Mechanism for Al-Mg/SiCp Composite Materials

Cited by 17 publications

References 6 publications

Correlation between theoretical and experimental hardness, elastic modulus of discarded aluminium piston reinforced with zirconium diboride and snail shells

Correlation between theoretical and experimental hardness, elastic modulus of discarded aluminium piston reinforced with zirconium diboride and snail shells

Influence of Ultrasonic Vibration towards the Microstructure Refinement and Particulate Distribution of AA7150-B4C Nanocomposites

Development of Aluminium Based Mango Seed Mangiferaindica Shell Ash (MSSA) Particulate Metal Matrix Composite

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Analysis of Fracture Mechanism for Al-Mg/SiC_p Composite Materials