Towards Analysis and Optimization for Contact Zone Temperature Changes and Specific Wear Rate of Metal Matrix Composite Materials Produced from Recycled Waste.

Aydın Güneş,Ömer Sinan Şahin,Abdullah Aslan,Danil Yurievich Pimenov,Hayrettin Düzcükoğlu,Khaled Giasin,Mustafa Kuntoğlu,Emin Salur

doi:10.3390/ma14185145

Abstract

Tribological properties are important to evaluate the in-service conditions of machine elements, especially those which work as tandem parts. Considering their wide range of application areas, metal matrix composites (MMCs) serve as one of the most significant materials equipped with desired mechanical properties such as strength, density, and lightness according to the place of use. Therefore, it is crucial to determine the wear performance of these materials to obtain a longer life and to overcome the possible structural problems which emerge during the production process. In this paper, extensive discussion and evaluation of the tribological performance of newly produced spheroidal graphite cast iron-reinforced (GGG-40) tin bronze (CuSn10) MMCs, including optimization, statistical, graphical, and microstructural analysis for contact zone temperature and specific wear rate, are presented. For this purpose, two levels of production temperature (400 and 450 °C), three levels of pressure (480, 640, and 820 MPa), and seven different samples reinforced by several ingredients (from 0 to 40 wt% GGG-40, pure CuSn10, and GGG-40) were investigated. According to the obtained statistical results, the reinforcement ratio is remarkably more effective on contact zone temperature and specific wear rate than temperature and pressure. A pure CuSn10 sample is the most suitable option for contact zone temperature, while pure GGG-40 seems the most suitable material for specific wear rates according to the optimization results. These results reveal the importance of reinforcement for better mechanical properties and tribological performance in measuring the capability of MMCs.

Highlights

Introduction distributed under the terms andInvestigations about combining the prominent aspects of metals to obtain new and versatile materials have gained momentum in the metal matrix composite (MMC) material field [1,2]
In previous works published by the authors, the mechanical properties, machining properties [10], and microstructural analysis of MMCs used in this study have been reported
To precisely observe the effect of the most dominant parameter on the wear aspects, these MMCs were fabricated by the same production parameters (i.e., 450 ◦ C and 820 MPa)

Summary

Introduction

Investigations about combining the prominent aspects of metals to obtain new and versatile materials have gained momentum in the metal matrix composite (MMC) material field [1,2]. For MMC production, several metals can be used as a matrix or reinforcement material, such as aluminum, steel alloy, magnesium, brass, bronze, and cast irons [3,4,5,6,7,8]. Bronze and cast iron, which are selected as the matrix and reinforcement materials, have received more attention than the other materials thanks to their extraordinary properties such as good surface integrity, high strength, and good tribological properties. It is crucial to assess the tribological properties of the produced MMCs, which are directly intended for the place of use

Methods

Results

Conclusion