WEAR PROPERTIES OF AL-CU-MG COMPOSITES REINFORCED WITH MGO AND MWCNT UNDER DIFFERENT LOADS

Year 2019, Volume: 2 Issue: 2, 70 - 75, 31.12.2019

Engin Ergül , Halil İbrahim Kurt , Murat Oduncuoğlu , Can Çivi

Abstract

Wear of metals is one of the most important mechanisms encountered on engineering basis. Especially in places where there is friction, it is important to use engineering materials with high friction resistance. In this study, 40 nm diameter nano magnesium oxide and 1.5 micron long and 9.5 nm diameter multiple walled carbon nano tubes were added to Al-Cu-Mg alloy. 50 wt% MGO and 50 wt% MWCNT were mixed and added to the matrix material in 1wt% and the composite materials were produced by the semi-solid mixing method. The aim of this study was to investigate the major tribological factors affecting the abrasive wear behavior of Al-Cu-Mg composites reinforced with MGO/MWCNT. Composite materials were produced by semi-solid mixing method. The wear behavior of MGO/MWCNT reinforced Al-Cu-Mg alloy aluminum matrix composites (Al MMCs) was investigated. Wear properties were investigated under different loads and the shear rate and shear distance were kept constant. Abrasion tests were carried out considering the weight loss at 500 m distance under 2N and 5N load on the ball-on-disc type wear device. Al-Cu-Mg wear weight loss was reduced by approximately 49% with the addition of 50% CNT 50% MgO 1% wt.

Keywords

Composite, Abrasion, Al-Cu-Mg, Ball on disc

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