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.
Highlights
Composites a material was developed to replace metal and alloys, because of the properties such as light weight and unique mechanical properties
This study aims to distinguish several of severe plastic deformation (SPD) methods that have been applied for composite materials, among the methods applied are equal channel angular pressing (ECAP), multi-axial forging (MAF), and accumulative roll bonding (ARB)
The SPD method is compared with the repetitive press roll bonding (RPRB) method, in application of application in the Industry, bonding on the material will change its name to forming because if it has been applied for certain component application bonding phase will become repetitive press roll forming (RPRF)
Summary
Composites a material was developed to replace metal and alloys, because of the properties such as light weight and unique mechanical properties. SPD works such as; ECAP performed by Langdon [4] to achieve 1.9 μm grain size with tensile strength more than 100 MPa required 11 cycles’ as for the ARB process conducted by Argentero [5] in his research, requires 10 cycles of rolling compression to produce 113 HV with tensile strength > 100 MPa. Improved of mechanical properties on composites has been performed by Amirkhanlou [6] using new method accumulative press bonding (APB), to produce fine grains with a ultimate tensile strength of 180 MPa from 88 MPa base material, it takes 14 cycles. The process scheme is presented in the figure 1.b
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