Microstructure and mechanical behavior of stir-cast Zn–27Al based composites reinforced with rice husk ash, silicon carbide, and graphite

Alaneme, Kenneth Kanayo; Ajayi, Olusola Joseph

doi:10.1016/j.jksues.2015.06.004

Cited by 24 publications

(11 citation statements)

References 10 publications

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“…The production of the Zn-27Al alloy matrix composites with steel machining chips and graphite as reinforcements was performed using double stir casting in agreement with [15]. The amount of reinforcements (steel machining chips and graphite) required to prepare five composite compositions presented in Tab.…”

Section: Composites Productionmentioning

confidence: 99%

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MECHANICAL, CORROSION AND WEAR BEHAVIOUR OF STEEL CHIPS AND GRAPHITE REINFORCED Zn-27Al ALLOY BASED COMPOSITES

Alaneme¹,

Ajibuwa²,

Kolawole³

et al. 2017

Acta Metall Slovaca

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<p class="AMSmaintext"><span lang="EN-GB">The prospect of enhancing mechanical, corrosion and wear properties of Zn27Al alloy based composites reinforced with steel machining chips by graphite addition was the focus of this investigation. Double stir casting was used to produce Zn27Al alloy based composites with 7 wt.% reinforcement but with varied compositions containing 1, 2, and 3 wt.% graphite, steel chips making up the balance. Microstructural analysis, mechanical, corrosion and wear tests were used to characterize the composites. The results show that the hardness of the composites decreases slightly with increase in graphite content in the reinforced composites. The tensile strength and fracture toughness of the composite only showed improvement with the addition of 3 wt.% graphite in the hybrid mix (steel chips and graphite) compared with the use of lower graphite content in the mix and steel chips only. The percent elongation did not show dependency on the composition of the reinforcement phase and was basically within the range 6.0 - 6.8 %. The fracture surfaces of all the composites were essentially rough, a preponderant feature of ductile fracture mode. The wear index of the composites was generally low indicating good wear resistance. However, despite the seeming self-lubricating advantage of graphite, the wear resistance of the composite reinforced with only steel chips was relatively better than that of the hybrid graphite and steel chips reinforced composite compositions. Finally, the steel chips and graphite reinforced Zn-27Al alloy based composites were generally more corrosion resistant in 3.5% NaCl solution compared with the unreinforced Zn-27Al alloy.</span></p>

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Section: Composites Productionmentioning

confidence: 99%

“…The testing procedure and data analysis were done in accordance with ASTM E8M-15a [17] standard. Fracture toughness of the Zn-27Al composites was determined using circumferential notch tensile (CNT) testing approach in accordance with [15]. using a Universal tensile testing machine.…”

Section: Mechanical Testingmentioning

confidence: 99%

MECHANICAL, CORROSION AND WEAR BEHAVIOUR OF STEEL CHIPS AND GRAPHITE REINFORCED Zn-27Al ALLOY BASED COMPOSITES

Alaneme¹,

Ajibuwa²,

Kolawole³

et al. 2017

Acta Metall Slovaca

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“…The material used in a excellent machining study were used. 4 In this aluminum Sic composite were prepared in a different weight percentage. And the different loading wear tested were carry out.…”

Section: Introductionmentioning

confidence: 99%

Determination of White Layer Characterstics on Machining Process

Rao*,

Rao

et al. 2020

IJRTE

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Now a day’s industries requirement as light weight and high wear resistance component. The component used as a various industrial application areas. The material also high self lubricant material also need. In this work we was used aluminium matrix composite with added in a CNT as a Nano materials. The materials has used to a high wear resistance and it is act as a self lubricant material also the material carry out different percentage and casting used in a stir casting method. The casting sample cut by a testing sample by used in an EDM wire cut machine. The sample carried out the result and plots the graphs. And the samples are carry out wear test using pin on disc method. The result shown in graph. And the sample machining study also did by EDM Wire cut machine. Finally carry out the white layer of the material. The study discussed with the paper. In this research work used in a light weight and self lubricant material needed area

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“…AlBeMet material has a low CTE, high specific heat and high thermal conductivity these properties are favorable for various space and aerospace applications. Many researchers [24][25][26][27][28][29][30][31] revealed that the liquid metallurgy route (stir casting) is one of the utmost extensively used and economical processing techniques for the fabrication particulate MMCs. In the present investigation, aluminum 7075 alloys as matrix and Al7075/Beryl-Graphene MMCs were developed by using stir casting with varying percentage of Graphene from 0.5wt% to 2wt% in steps of 0.5 and fixed percentage (6wt.…”

Section: Introductionmentioning

confidence: 99%

Tribological Behavior and Hardness Properties of Heat Treated Al 7075-Beryl-Graphene Hybrid Metal Matrix Composites

Patil*¹,

Haneef²

2019

IJRTE

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The emerging technologies and trends of the present generation require downsizing the unwieldy structures to lightweight structures. Aluminum matrix composites are tailored candidate materials for aerospace applications due to their outstanding greater strength to weight ratio and low wear rate. In this study, Al7075 alloy-Beryl-Graphene hybrid composites are developed by using stir casting process. Graphene weight percentage was varied from 0 wt. % to 2 wt. % in steps of 0.5 wt. %. Whereas for Beryl 6 wt. % is used thorough out the study. The casted specimens were heat-treated at T6 solutionizing temperature of 530±5oC for 8 hours. After the heat treatment the specimen are quenched in boiling Water and Ice. The microstructure of the newly developed hybrid MMCs has been investigated by TEM and SEM. The microstructural study reveals the uniform distribution of reinforcement into matrix materials. The hardness and wear behavior of matrix and hybrid composites before and after heat treatment examined by Brinell hardness test and Pin-on-disc test machine respectively. The heat-treated Al7075-Beryl-Graphene hybrid composites significantly improved the hardness and low wear rate compared to base matrix Al7075 alloy

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Microstructure and mechanical behavior of stir-cast Zn–27Al based composites reinforced with rice husk ash, silicon carbide, and graphite

Cited by 24 publications

References 10 publications

MECHANICAL, CORROSION AND WEAR BEHAVIOUR OF STEEL CHIPS AND GRAPHITE REINFORCED Zn-27Al ALLOY BASED COMPOSITES

MECHANICAL, CORROSION AND WEAR BEHAVIOUR OF STEEL CHIPS AND GRAPHITE REINFORCED Zn-27Al ALLOY BASED COMPOSITES

Determination of White Layer Characterstics on Machining Process

Tribological Behavior and Hardness Properties of Heat Treated Al 7075-Beryl-Graphene Hybrid Metal Matrix Composites

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