Abstract
Over these past few years, there have been a large number of technical papers published related to the problem of improving the mechanical properties of materials obtained through severe plastic deformation. Nevertheless, the number of technical papers dealing with improvement in the mechanical properties of mechanical components manufactured from submicrometric grain size material has not been so proficient. Therefore, in this present research work, a straight blade has been manufactured starting from AA-5083 previously processed by ECAE twice (N2) with route C. This material will be manipulated so as to be isothermally forged at different temperature values. This present research work shows the results that are inherent in an improvement in the mechanical properties and the microstructure achieved in the thus obtained components, compared with the starting material. In addition, the optimum forging temperature to achieve these components will be determined. As shown in this research work, it is possible to obtain submicrometric grain size mechanical components with a higher mechanical strength than those obtained in nonultrafine grained materials. The originality of this research work lies in the manufacturing of actual mechanical components from ECAE processed material and the analysis of their properties.
Highlights
This research work presents a study on the forgeability of a straight blade made from an aluminium alloy AA-5083
The main aim of this present paper is to demonstrate that the use of equal channel angular extrusion (ECAE) processed AA-5083 as starting material makes it possible to forge a part, in this case in the shape of a straight blade, improving its mechanical properties, if it is compared with the use of annealed AA-5083 as initial material
Some other severe plastic deformation (SPD) processes exist such as the accumulative torsion back (ATB) process [1], multi-axial compressions/forging (MAC/F) [2], and the accumulative roll bonding (ARB) process [3], the process employed here to obtain submicrometric grain size starting material was equal channel angular extrusion (ECAE) [4], which is the most popular SPD process, and it consists in the extrusion of the material through a die with two channels of the same cross section that intersect at an angle [5]
Summary
This research work presents a study on the forgeability of a straight blade made from an aluminium alloy AA-5083. One of the most relevant conclusions of this study is the decrease in the forging temperature along with an improvement in the surface quality of the forged parts In this present study, a straight blade, which can form a part of such important elements as compressors or fans, has been manufactured starting from AA-5083 previously processed by ECAE twice (N2) with route C at room temperature. A straight blade, which can form a part of such important elements as compressors or fans, has been manufactured starting from AA-5083 previously processed by ECAE twice (N2) with route C at room temperature Under these conditions, the material is ECAE processed approximately with an initial grain size of 0.5 μm and an initial true strain between 2 and 2.4. As shown in this research work, it is possible to obtain submicrometric grain size mechanical components with a higher mechanical strength value than that obtained in the non-UFG material
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
