Mechanical and wear surface characterisation of aluminium hybrid nanocomposite

I. Manivannan, S. Ranganathan, S. Gopalakannan, S. Suresh, D. Candane
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引用次数: 1

Abstract

The newly engineered metal matrix nanocomposite (MMNC) of Al6061 reinforced with 0.4 wt% SiC and 0.5 wt% Gr hybrid nanocomposites were synthesised by ultrasonic assisted stir casting method. The pin-on-disc equipment were conducted on the prepared samples to investigate the tribological behaviour of the hybrid nanocomposite. The hybrid nanocomposite and wear surfaces have been characterised by field emission scanning electron microscope (FESEM) equipped with an energy dispersive spectrometer (EDS), optical microscope (OM) and 3D profilometer to understand the wear mechanisms. This study shows the effectiveness of incorporation of graphite in the hybrid nanocomposite for reduction of friction, wear and surface roughness. With the introduction of nano SiC and Gr particles into matrix alloy, the number and depth of grooves in worn surface of hybrid nanocomposites decreased. The Al/0.4SiC/0.5Gr hybrid nanocomposite showed superior tribological properties and self-lubricating ability compared to the matrix alloy.
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铝杂化纳米复合材料的力学和磨损表面表征
采用超声辅助搅拌铸造法制备了0.4 wt% SiC和0.5 wt% Gr复合材料增强Al6061金属基纳米复合材料。采用针盘式装置对制备的样品进行摩擦磨损性能研究。利用场发射扫描电子显微镜(FESEM)、能谱仪(EDS)、光学显微镜(OM)和三维轮廓仪对混合纳米复合材料和磨损表面进行了表征,以了解磨损机理。该研究表明,在杂化纳米复合材料中加入石墨对于减少摩擦、磨损和表面粗糙度是有效的。在基体合金中引入纳米SiC和纳米Gr颗粒后,杂化纳米复合材料磨损表面的沟槽数量和深度均有所减少。与基体合金相比,Al/0.4SiC/0.5Gr杂化纳米复合材料具有优异的摩擦学性能和自润滑性能。
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CiteScore
1.20
自引率
0.00%
发文量
3
期刊介绍: IJCMSSE is a refereed international journal that aims to provide a blend of theoretical and applied study of computational materials science and surface engineering. The scope of IJCMSSE original scientific papers that describe computer methods of modelling, simulation, and prediction for designing materials and structures at all length scales. The Editors-in-Chief of IJCMSSE encourage the submission of fundamental and interdisciplinary contributions on materials science and engineering, surface engineering and computational methods of modelling, simulation, and prediction. Papers published in IJCMSSE involve the solution of current problems, in which it is necessary to apply computational materials science and surface engineering methods for solving relevant engineering problems.
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