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Paper Title : Optimization of the Mechanical and Electrical properties of aluminium 6063 alloy after deformation

ISSN : 2395-1303
Year of Publication : 2020
10.29126/23951303/IJET-V6I6P2

Authors: Er. Asif Khan , Prof. Ravi Mohan Saxena

         


Abstract
- In this paper, commercially available Al 6063 alloy will be subjected to multi axial forging. The evolution of ultrafine grain structure will be investigated at a various strain levels. The Optical microscopy and Transmission electron microscopy will be used to determine these changes. Rolling will be performed up to true strain 2.4 and the mechanical properties and micro structural changes will compared. At lower strain level the micro structure reveals formation of dislocation cells along with sub grain structure. Formation of elongated sub grain structure with high angle grain boundaries through dynamic recovery will be observed with the increase strain in shear bands. Micro structure observed in rolled sample is more homogeneous with low angle grain boundaries. The improvement in mechanical properties will be observed in all the samples.The effect of deformation on the tensile strength, toughness, hardness, and electrical resistance of Al 6063 alloy. Cast samples will be cold rolled in the range of 0-30 percent thickness reduction and subjected to mechanical (static, dynamic) and electrical resistance tests. Results show significant improvement in hardness and electrical resistance properties of the alloy. The nature, amount and distribution of the secondary phase, Mg2Si, particles precipitated within the matrix which was influenced by the extent of cold-work, are responsible for the observed behavior. There is no change occur in the range of 8 to 14 % of thickness reduction so the study will be done to examine why this occur in this range.

Reference
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Keywords
Mechanical, Electrical, Thermal Systems.