Effect of Boron Carbide on wear resistance of graphite containing Al7029 Based Hybrid Composites and its Dry Sliding Wear Characterization Through Experimental, Response Surface Method and ANOVA

Q3 Engineering

Tribologia: Finnish Journal of Tribology Pub Date : 2021-12-16 DOI:10.30678/fjt.111905

Madhu K S, Venkatesh C V, Sharath B N, K. S

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引用次数: 7

Abstract

Composites are often chosen for tribological applications due to its tailored material properties. The development of hybrid metal matrix composites and the study of their wear behavior has been a prominent focus of materials science research. Present paper deals with fabrication of Al-7029/B4C/Gr hybrid composite using stir casting. Particle distribution and material phase are identified by SEM and XRD. Hardness of the composite increased to 101 BHN while base alloy with 63 BHN. Pin-on-disc Tribometer used to carry wear test and the experimentation conducted by considering three input wear control parameters: 15–35 N (load), 1.5–3.5 m/s (speed) and 200–600 m (distance). Addition of 6%B4C/3%Gr, wear rate of hybrid composites reduced. ANOVA confirmed that load as the most influencing parameter on wear rate. RSM results correlates with mean effect plots of ANOVA and experiments and found that the results are in good compliance. SEM graphs of worn surface confirms that more wear occurred with increased load.

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碳化硼对含Al7029石墨基杂化复合材料耐磨性的影响及其干滑动磨损表征(实验、响应面法和方差分析

由于其定制的材料特性，复合材料经常被选择用于摩擦学应用。杂化金属基复合材料的发展及其磨损性能的研究一直是材料科学研究的一个突出热点。采用搅拌铸造法制备了Al-7029/B4C/Gr复合材料。采用SEM和XRD对颗粒分布和物相进行了表征。复合材料的硬度提高到101 BHN，而基体合金的硬度为63 BHN。Pin-on-disc tribomter用于进行磨损测试，并考虑三个输入磨损控制参数:15-35 N(载荷)，1.5-3.5 m/s(速度)和200-600 m(距离)进行实验。添加6%B4C/3%Gr，杂化复合材料的磨损率降低。方差分析证实，载荷是影响磨损率最大的参数。RSM结果与方差分析和实验的平均效应图相关，发现结果具有良好的符合性。磨损表面的扫描电镜图证实，随着载荷的增加，磨损加剧。

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

Tribologia: Finnish Journal of Tribology Materials Science-Surfaces, Coatings and Films

CiteScore

2.20

自引率

0.00%

发文量