Aluminum Alloys by Ecap Consolidation for Industrial Application

Abstract

Affecting factor of important in industrial applications of Powder Metallurgy is a process of consolidation, the fabrication process with the good parameters by increasing of the bond strength on surface to reduce the number of pores. In particular, methods of Severe Plastic Deformation (SPD) overcoming a number of difficulties associated with residual porosity in the sample which solidified. Ultrafine-Grained (UFG) materials processed by ECAP usually show unique mechanical properties such as; high yield stress at low strain hardening, good ductility on low temperatures and high strain-rate super-plasticity at high temperatures. Production of Al alloy growing rapidly, particularly in the automotive industry. Although highstrength aluminum alloys containing Mg and Si (6xxx series aluminum alloys) which are easily reached, but for formability processes is not sufficient to be applied. Therefore, much research has focused on increasing the formability of these alloys through heat treatment. High strength aluminum alloy, such as alloy AA7XXX, which combines the power of high-density ratio with excellent mechanical properties, is widely used for aviation applications, superplastic forming into high-volume fabrication of components in the automotive. Consumer products industry is currently limited because of the relatively low strain rate. AA6XXX are some of the alloys materials, mostly used currently covering the whole range of industry. Applications of AA6XXX easier to process than AA7XXX because of properties the material elasticity, AA7XXX tend to form internal cracks as a result of micro-segregation. That way heat treatment is required to improve the properties of the material when it is processed by ECAP.

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

“…The process can change the characteristics of the material to be harder due to changes in grain morphology. Figure 2(d) is the grain structure of AA7075, based on the literature review [9]. The microstructure of deposits such as the element MgZn2, which functions as a precipitate, frequently constrains the working process on the AA7075 series material.…”

“…This research experiment applies the finite element method, which aims to determine the temperature limit applied to aluminum-based composite products resulting from the ARB process with the addition of operational stress. The finite element method (FEM) traces the heat distribution area received by the sample so that it can be determined in which area the heat is received by the aluminum-based composite sample [9,10]. This study discusses aluminum-based metal composites using Al2O3 reinforcement compared to B4C reinforcement.…”

Effect of Pressure Distribution on Hydroxyapatite (HAp) Based Hybrid Composites Made from the Milkfish Bones

“…Hardness measurements give information about homogeneity of strength [9]. It was determined by how much grain size can be produced uniformly, so that homogeneous strength can provide resistance to high loading [10]. The results of the measurement of hardness obtained several varied values.…”

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

“…It has found more than 100 specific markets for production of component in areas on aerospace, transportation, medical equipment, chemical processing, electronics and MATEC Web of Conferences 218, 04011 (2018) https://doi.org/10.1051/matecconf/201821804011 ICIEE 2018 defence [1]. Some of the applications that use SPD materials are aluminum based composites with high yield strength and superplastic properties, higher mechanical properties in cold and cryogenic temperatures and high-strength lightweight alloys with shape-memory effect for space, medical and many other applications [17][18]…”