Investigation of mechanical properties on composite materials by several of severe plastic deformation (SPD) methods

Abstract

The technology of severe plastic deformation (SPD) is the process on forming metals of large plastic strain that is used for mass production in order to make ultrafine-grained (UFG). Through research on the characterization of aluminium-based composite materials with several SPD methods, the ideal variable will be obtained in producing high-strength materials. The development of a new SPD method driven by requirements simplifies the process, so that it can be applied for mass production, some of the development of SPD technology is able to produce high plastic strain. The market for nanostructured materials produced by SPD technology is in sectors where superior traits such as specific strength is needed. This research is focused on a comparison of several SPD methods; APB, MAF, ECAP-PC and RPRF, in the scope of mechanical characterization on aluminium based composites. Result of mechanical properties obtained, the RPRF method is the best that is able to produce higher mechanical characteristics than other methods. That produces 75.9 VH10 hardness on RPRF, while APB 45.82 VH10, ECAP-PC 66.12 and MAF of 42.9 VH10

Characteristics of aluminum-based composites reinforced of Al2O3/B4C by accumulative roll bonding (ARB)

“…The mechanical properties tested were hardness using the Brinnel indentation method. Measurement of brinnel hardness reveals mechanical properties in resisting indentation loads, so that resistance to loading can be measured which states its strength [12]. Hardness is the ability of a metal to withstand plastic deformation loads [13].…”

“…The development of ARB-based composite materials is an effective alternative method for manufacturing materials with improved mechanical characteristics. This process was developed based on the accumulative roll bonding (ARB) principle but can be easily installed in laboratory and industrial environments [12][13]. Roll compression in ARB affects the microstructure and mechanical properties of the composite material, where rolling compression can produce a uniform application of simple forces on the compressed workpiece.…”

Effect of Magnesium Powder Application on the Microstructure and Properties of Rods Extruded by the Forward-Backward Rotating Die Extrusion Method

“…The aim of all of them is the intense refining of the metal grain size in order to obtain superior mechanical properties. The usefulness of SPD methods in the processing of metal matrix composites has also been examined, and it was found that they can ensure an effective augmentation in the mechanical properties of the composites [37][38][39][40][41]. These advantageous properties are mainly due to metal grain refinement, while the other components present largely play the role of functional additions changing the tribological, electrical, or thermal properties.…”

High Strength of Aluminium-Based Composites by Different Methods of Severe Plastic Deformation (SPD)

“…While aluminium is the only metal that is suitable for use as a matrix material in ceramic-reinforced composites. The use of alumina as a reinforcement is able to improve mechanical properties, which only reached 48 VH and the tensile strength of 140 MPa was obtained [12][13][14][15][16][17]. While the development of composites reinforced with SiC hardness increased but also not too significant, namely hardness of 88 VH and tensile strength of 160 MPa [2].…”