Evaluation of tribological property and coating reliability of alumina and aluminum silicate-coated A356 aluminum alloy

IF 1.6 3区工程技术 Q3 ENGINEERING, MECHANICAL

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology Pub Date : 2023-01-23 DOI:10.1177/13506501231151270

R. Vijay, V. N. Aju kumar, A. Sadiq, T. S. Krishna Kumar

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引用次数: 0

Abstract

Material loss due to relative motion between the contact surfaces causes surface degradation leading to premature failure of engineering systems. Of the several techniques to improve the wear resistance of rubbing components, the process of providing a hard protective surface coating has gained tremendous significance. Aluminum alloys used in engineering applications are exposed to rubbing, resulting in progressive wear. Sol-gel coating is a widely accepted surface coating technique for aluminum alloys, and this paper focuses on alumina and aluminum silicate coating applied to aluminum alloys. The tribological characteristics such as coefficient of friction (COF) and volumetric wear losses (VWL) are evaluated using a pin on disc (POD) tribometer. Finite-element analysis (FEA) plays a vital role in bringing an approximate solution to various engineering and non-engineering problems. The POD tribometer is modelled in the design modeller of the Ansys workbench based on the Archard wear model. The coating reliability is experimentally estimated based on its tribological properties. Surface hardness is measured by microhardness indentation test, and materials characterization is done using atomic force microscopy (AFM) and Fourier transform infrared radiation (FTIR) spectroscopy. It is observed that alumina coating exhibits better tribological properties than aluminum silicate-coated A356 aluminum alloy.

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氧化铝和硅酸铝涂层A356铝合金摩擦学性能及涂层可靠性评价

由于接触面之间的相对运动造成的材料损失会导致表面退化，从而导致工程系统的过早失效。在提高摩擦部件耐磨性的几种技术中，提供坚硬保护表面涂层的工艺具有重要意义。在工程应用中使用的铝合金暴露在摩擦中，导致逐渐磨损。溶胶-凝胶涂层是一种被广泛接受的铝合金表面涂层技术，本文重点介绍了氧化铝和硅酸铝涂层在铝合金中的应用。使用销盘式(POD)摩擦计评估摩擦系数(COF)和体积磨损损失(VWL)等摩擦学特性。有限元分析在为各种工程和非工程问题提供近似解方面起着至关重要的作用。基于Archard磨损模型，在Ansys workbench的设计建模器中对POD摩擦计进行建模。根据涂层的摩擦学性能对涂层的可靠性进行了实验估计。采用显微硬度压痕试验测定表面硬度，采用原子力显微镜(AFM)和傅里叶变换红外光谱(FTIR)对材料进行表征。结果表明，氧化铝涂层比硅酸铝涂层具有更好的摩擦学性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 工程技术-工程：机械

CiteScore

4.20

自引率

5.00%

发文量

110

审稿时长

6.1 months

期刊介绍： The Journal of Engineering Tribology publishes high-quality, peer-reviewed papers from academia and industry worldwide on the engineering science associated with tribology and its applications. "I am proud to say that I have been part of the tribology research community for almost 20 years. That community has always seemed to me to be highly active, progressive, and closely knit. The conferences are well attended and are characterised by a warmth and friendliness that transcends national boundaries. I see Part J as being an important part of that community, giving us an outlet to publish and promote our scholarly activities. I very much look forward to my term of office as editor of your Journal. I hope you will continue to submit papers, help out with reviewing, and most importantly to read and talk about the work you will find there." Professor Rob Dwyer-Joyce, Sheffield University, UK This journal is a member of the Committee on Publication Ethics (COPE).