Aluminum based Composites by Severe Plastic Deformation Process as New Methods of Manufacturing Technology

Abstract

Composites a material was developed to replace metal and alloys, because of the properties such as light weight and unique mechanical properties. Processing of aluminum-based composites has been developing by new manufacturing technology, namely severe plastic deformation (SPD), to produce unique of mechanical properties. Some of the methods used are; equal channel angular pressing (ECAP), accumulative roll bonding (ARB) and multi-axial forging (MAF). The results of some of these methods were compared with the latest method of new SPD, namely: repetitive press roll forming (RPRF). Based on grain morphology and mechanical properties, the result of RPRF has superior to another method. The properties produced by SPD technology was varies, the highest of hardness produced by RPRF process was 88 HV10, ECAP produced 65 HV10, MAF was 46 HV10 and ARB reached 50 HV10. While the highest of tensile strength produced by MAF was 237 MPa while the RPRF process just only around 147 MPa, but the ultrafine grains just only produced by RPRF method which is 0.9 μm, compared to other methods: MAF 1.2 μm, ECAP 5.7 μm and ARB is not so far with MAF that is equal to 1.4 μm. The RPRF process can be recommended for the interest of the aluminum-based composite materials processing industry. Because currently some component product by industries have been substituted from metal alloy materials to metal-based composites.

Processing of Milkfish Bone on Al/Ti/Mg Into Hybrid Composites by Self-Propagating High Temperature Synthesis (SHS)

“…It has specials properties such as being light weight, ductile [10]. The most striking characteristic of aluminum is its melting point which is suitable for producing elemental reactions with nonmetallic material elements such as ceramics [11].…”

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

“…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]. Comparison of hardness is accompanied by measurements of physical properties, such as density and porosity, because metal composites must be able to ha ve light properties and minimal porosity [13,14].…”

“…Hardness is the ability of a metal to withstand plastic deformation loads [13]. Comparison of hardness is accompanied by measurements of physical properties, such as density and porosity, because metal composites must be able to ha ve light properties and minimal porosity [13,14]. The Brinell test of specimens uses a spherical indenter made of hardened steel or tungsten carbide.…”

“…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.…”

Plastic deformation technology of high strength deformed magnesium alloy

“…Due to the requirements of environmental protection and energy saving, traditional steel materials in many fields are gradually being replaced by new materials with higher comprehensive performance [2,3]. It is of strategic significance to develop magnesium alloys and improve the properties of magnesium _____________ * Corresponding author, e-mail: Xiao_Lu2020@163.com alloys for the economic and social development of our country according to the proportion and production of magnesium alloys [4][5][6]. Since the 1960's, materials scientists at home and abroad have devoted themselves to the research and development of Mg-based composites to improve the comprehensive properties of Mg-based alloys by strengthening ceramic particles or fiber reinforcements [7][8][9][10].…”