Corrosion Behavior of Graphene Nanoplatelet-Coated TiB2 Reinforced AZ91 Magnesium Matrix Semi-Ceramic Hybrid Composites

Abstract

R ecent environmental protection policies focus on the need to reduce the weight of vehicles in order to increase fuel efficiency and reduce the impact of greenhouse gases emission [1]. Magnesium stands out as the structural metal in cases where weight reduction is important for materials used in industry and vehicles [2]. Low density, good strength to weight ratio, better heat dissipation, acceptable damping capacity, machinability, and recyclability make magnesium a much more attractive structural metal compared to steel and aluminum [2][3][4]. Despite all these superior properties, high corrosion rate in aggressive environments, relatively low absolute strength, and elastic modulus when compared to other metallic structural materials are the most important unfavorable properties of magnesium alloys [2,[5][6][7].One way to produce high strength, corrosion-resistant magnesium alloys is the production of Mg-based composites by the addition of reinforcement particles such as ceramics [7]. Reinforcement of Mg matrix composites (MMCs) with suitable ceramic particles such as SiC, TiC, and TiB 2 can exhibit high specific strength and acceptable corrosion resistance when the correct combination of reinforcement and a light metal mat-Article History:

Investigation of the mechanical, corrosion, and tribological characteristics of AZ61 Mg with boron carbide nano particles via the stir casting route

“…On the other hand, it has been reported that adding nanosized ceramic reinforcements to magnesium and its alloys (such as Al 2 O 3 , ZrO 2 , or ZnO) resulted in an increase in both the material's overall strength and ductility [14,15]. Stir casting isutilized to manufacture magnesium matrix composites [16][17][18][19][20][21][22]. These composites use silicon-carbide-reinforced particles.…”

Investigation of Corrosion Characteristics of Az91 Magnesium Matrix Composite Materials

“…Özellikle magnezyum matrisli kompozit malzemelerin korozyon dayanımı hakkında yapılan çalışmalar son derece sınırlıdır (Fink, 2003, Hassan and Gupta, 2002, Nguyen and Gupta, 2010, Aydogmus, 2015, Esen, 2012, Kelen et. al., 2018, Kelen vd., 2019, 2021b, Çevik et. al.…”