Effects of reinforcement additions on properties of aluminium matrix composites – A review Shyam Rangrej ⇑ , Shaileshkumar Pandya, Jyoti Menghani Department of Mechanical Engineering, SVNIT, Surat, Gujarat 395007, India article info Article history: Received 31 August 2020 Received in revised form 2 October 2020 Accepted 20 October 2020 Available online xxxx Keywords: Aluminium matrix composite Hybrid composite Reinforcement Metal matrix composites Aluminium alloy abstract The usage of aluminium is constrained by its lower strength, lower stiffness and hardness. However, there is a need for the addition of reinforcements, either single or multiple which improves properties. Al-MMCs can be tailored to have superior properties such as high stiffness and higher specific strength, enhanced high temperature performance, lower thermal expansion co-efficient, and increased wear resistance. Due to this superior properties, AMMCs are used in automobile, aerospace and different struc- tural engineering applications. This paper presents a review on the effect of single as well as multiple reinforcement addition on physical, mechanical and wear properties of aluminium based metal matrix composites. Ó 2021 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Confer- ence on Materials, Processing & Characterization 1. Introduction A composite material is basically a combination of two or more materials that depicts better properties than that of its constituent components considered individually [1]. Composites are basically categorized in two separate levels. The primary classification nor- mally in view of Matrix material. This sort of composites can be grouped mainly into, Metal-Matrix Composites (MMC),Ceramic- Matrix Composites (CMC) and Polymer-Matrix Composites (PMC). The secondary level of classification usually based on rein- forcement materials, similar to particulate reinforcements, whisker reinforcements, continuous fiber laminated composites, and woven composites (plaited and weaved fiber models are incorpo- rated into this class). Among these, MMCs has an advantage over other composites because of their ability to resist high tempera- tures, moisture, radiation and zero outgassing at vacuum, thermal and electrical conductivities, enhanced mechanical properties [2]. In today’s time, MMCs became one of the most significant advanced materials utilized for defence, automotive, aerospace and general engineering applications. They can be custom fitted to create advanced properties such as high stiffness and higher specific strength, enhanced high temperature performance, lower thermal expansion co-efficient, increased wear resistance, higher elastic modulus, low thermal shock, higher electrical and thermal conductivity [3]. In open literature, there are various matrix mate- rials (Al, Ti, Mg, Cu and Fe) available for MMCs. Among this matrix materials, aluminium and its alloys are widely used to produce MMCs. Aluminium based metal matrix composites (AMMCs) are widely used in automobile [4], aerospace[5], and different struc- tural applications [6] due to its enhanced properties such as excel- lent resistance to corrosion, very high strength to weight ratio, higher electrical and thermal conductivity. The properties of AMMCs depends mostly upon the processing technique, and so selection of processing technique plays a very important role in development of aluminium matrix composites [7]. The methods, which are commonly employed to manufacture MMCs, are represented in Fig. 1. Solid state methods include spark plasma sintering (SPS) [8], high energy ball mill & sintering [9], vacuum/gas sintering [10] and microwave sintering [11]. Liquid state methods can be further classified into two groups: (a) Infiltra- tion methods and (b) Casting methods. Different infiltration meth- ods are melt infiltration [12], pressure infiltration [13], vapour infiltration [14], high pressure centrifugal infiltration [15] and squeeze casting infiltration [16]. Different casting processes used for the manufacturing of MMCs are stir casting [17], centrifugal casting [18], squeeze casting [19] and vacuum die casting [20]. https://doi.org/10.1016/j.matpr.2020.10.604 2214-7853/Ó 2021 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Conference on Materials, Processing & Characterization ⇑ Corresponding author. E-mail address: shyamrang24@gmail.com (S. Rangrej). Materials Today: Proceedings xxx (xxxx) xxx Contents lists available at ScienceDirect Materials Today: Proceedings journal homepage: www.elsevier.com/locate/matpr Please cite this article as: S. Rangrej, S. Pandya and J. Menghani, Effects of reinforcement additions on properties of aluminium matrix composites – A review, Materials Today: Proceedings, https://doi.org/10.1016/j.matpr.2020.10.604