“…The best tribological performance was obtained for the 10 wt.% ES content. The improved wear resistance is attributed to reinforcement particles acting as a load-bearing element [85]. Figure 14 Wear rate graph of the Mg/ES composites [38].…”
The demand for magnesium (Mg) alloys is increasing in many industries, such as automotive and aerospace, thanks to their low density and high specific strength. However, the poor tribological performance of Mg alloys is one of the most important disadvantages that limit their widespread use. Researchers have developed different approaches to improve the wear performance of Mg alloys, such as alloying, coatings, surface modifications and composite production. Wear performance of systems with sliding parts are crucial for a lifetime and energy efficiency. The development of Mg matrix composites can significantly reduce energy loss by reducing damage from friction and wear. For this reason, it is crucial to understand the wear behaviour of recent Mg matrix composites. The effect of different parameters such as load, sliding speed, reinforcement content, reinforcement type and temperature on the wear performance of Mg matrix composites were investigated.
“…The best tribological performance was obtained for the 10 wt.% ES content. The improved wear resistance is attributed to reinforcement particles acting as a load-bearing element [85]. Figure 14 Wear rate graph of the Mg/ES composites [38].…”
The demand for magnesium (Mg) alloys is increasing in many industries, such as automotive and aerospace, thanks to their low density and high specific strength. However, the poor tribological performance of Mg alloys is one of the most important disadvantages that limit their widespread use. Researchers have developed different approaches to improve the wear performance of Mg alloys, such as alloying, coatings, surface modifications and composite production. Wear performance of systems with sliding parts are crucial for a lifetime and energy efficiency. The development of Mg matrix composites can significantly reduce energy loss by reducing damage from friction and wear. For this reason, it is crucial to understand the wear behaviour of recent Mg matrix composites. The effect of different parameters such as load, sliding speed, reinforcement content, reinforcement type and temperature on the wear performance of Mg matrix composites were investigated.
“…In addition to monolithic composites (where only one filler is used), hybrid composites (where more than one filler/additive is used) can also be produced. An example of a hybrid composite with two agricultural waste fillers can be Mg-Al alloy with RHA and eggshell as reinforcements in 0–10 wt % [ 59 ]. The authors showed the optimal reinforcement content of 7.5 wt % with the lowest sliding wear loss and COF.…”
Waste management is still one of the leading global challenges in the 21st century. From the European Union’s point of view, the Waste Framework Directive obliges businesses and households to recycle at least 55% of their municipal waste by 2025 and to reach 65% in 2035. Hence there is a great need to seek new solutions for the reuse of various waste materials. One of the most widely used wastes is their utilization as fillers or reinforcements in the metal- or polymer-based composites. The reuse of wastes for the production of tribological materials gives not only environmental benefits related to the transformation of waste into raw materials but also may improve the mechanical and tribological properties of such materials. Moreover, the use of waste reduces the production costs resulting from the lower price of filler materials and longer service life of developed products. The purpose of the current review is, therefore, aimed at the evaluation of the reuse of agricultural, industrial and postconsumer wastes as reinforcements in the composites used for tribological applications. The tribological performance (wear rate, coefficient of friction) of both monolithic and hybrid composites reinforced with waste materials was a particular subject of interest in this review.
“…Anandajothi and Vinod conducted an experiment involving the fabrication of AZ91D magnesium hybrid composites through powder metallurgy methodology. This study introduced diverse weight proportions of amorphous silica and hydroxyapatite particles and subsequently assessed the tribological properties through the use of a pin-on-disc apparatus [9]. The outcomes show that the wear resistance of the AZ91D/7.5% (SiO2-HA) hybrid composite was enhanced compared to that of alternative materials [9].…”
Section: Introductionmentioning
confidence: 99%
“…This study introduced diverse weight proportions of amorphous silica and hydroxyapatite particles and subsequently assessed the tribological properties through the use of a pin-on-disc apparatus [9]. The outcomes show that the wear resistance of the AZ91D/7.5% (SiO2-HA) hybrid composite was enhanced compared to that of alternative materials [9]. In the eld of enhancing mechanical properties, Bassiouny Saleh et al used the stir casting technique to reinforce AZ91/SiCp composites by manipulating the weight fraction of silicon carbide particles.…”
This study aimed to fabricate hybrid metal matrix composites of AZ91D magnesium reinforced with varying various weight percentages of SiC and constant weight percentages of BN particles through the stir-squeeze casting method. The influence of the particle ratio on the microstructure and wear behaviour of the composites was studied. The dispersion patterns of particles within the matrix and the interactions between the alloy and the particles were thoroughly investigated using a variety of techniques, including optical microscopy, SEM, EPMA, and EDS.XRD analysis of the AZ91D/SiC/BN hybrid composite revealed a significant volume proportion of the strong Mg17Al12 phase. The synthesized magnesium hybrid composites (AZ91D/9%SiC/3%BN) experienced a volume loss reduction of up to 36.16% under a maximum load of 30 N and a maximum speed of 1 m/s when compared with the monolithic material AZ91D. The results of these analyses demonstrated that the resulting composites exhibited an even dispersion of particles, superior grain structure, and strong interfacial bonding between the AZ91 alloy and the reinforcing particles. The newly developed magnesium hybrid composites have better wear performance than monolithic AZ91D alloys. These findings highlight the enhanced wear resistance of the fabricated composites for antiwear applications.
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