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Nagendra Singh, Manoj Kumar Agrawal
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- Research Scholar, Associate Professor, Department of Mechanical Engineering, GLA University, Mathura, Department of Mechanical Engineering, GLA University, Mathura, Uttar Pradesh, Uttar Pradesh, India, India
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Abstract
nEqual channel angular pressing is an emerging method applied to subject materials to significant plastic strains while maintaining the original shape of the billet. Researchers have discovered that the level of strain attained through equal channel angular pressing is influenced by factors such as the angle of die, friction conditions, and the implementation of back pressure. These variables significantly impact the microstructure and the irregularity of strain within the billet being processed. The strain distribution is most consistent and closely resembles that of a simple shear deformation. This results in a consistent rotation of material along a constant strain path at the ends of the billet. As a result, the sizes of grain of AA5083 are submicrometer reduced range. The submicrometer grains in AA5083 exhibited considerable stability up to annealing temperatures of approximately 210 0C. Moreover, these fine-grained structures were retained in AA5083 even when subjected to annealing temperatures as high as 300 0C. After undergoing equal channel angular pressing by a single passage, the ultimate tensile stress of each alloy increased while the elongation to failure decreased accordingly. The metal flow during equal channel angular pressing is influenced by various factors. The tooling configurations used in the study included a “simple” design, which lacked moving of channel members, and a “complex” design featuring a sliding bottom floor. The non-uniform flow occurred not only near the head and tail of the pressing but also in other regions of the billet.
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Keywords: AA5083; Back Pressure; Ultrafine grain size; Deformation Behaviour, Flow Behaviour
n[if 424 equals=”Regular Issue”][This article belongs to Journal of Polymer and Composites(jopc)]
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| Volume | ||
| [if 424 equals=”Regular Issue”]Issue[/if 424][if 424 equals=”Special Issue”]Special Issue[/if 424] [if 424 equals=”Conference”][/if 424] | ||
| Received | January 6, 2024 | |
| Accepted | March 2, 2024 | |
| Published | April 24, 2024 |
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