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Subject Area

Material Science and Engineering

Article Type

Original Study

Abstract

The investigation centered around the analysis of enhanced mechanical properties and electrical conductivity in an industrial aluminum alloy that underwent a transformation into an ultra-fine-grained (UFG) state. The aforementioned transformation was successfully accomplished by utilizing a singular iteration of the Equal Channel Angular Pressing (ECAP) method. The study involved conducting evaluations through hardness and compression tests, measuring electrical conductivity, and analyzing microstructures using OM and SEM. After annealing for three hours at a temperature of 4150C, it is experimentally explored how the electrical conductivity and material properties of AA-6061 The mechanical properties of the material are influenced by the level of severe plastic deformation (SPD) during the process of ECAP. The findings indicate that ECAP leads to a significant improvement in compressive strength, increasing it from 70 to 196 N/mm2 under the rate of strain of 0.008s-1 following a single pass. Additionally, the hardness of the material shows a consistent and gradual increase until reaching its peak value at 196 N/mm2. 0.008s-1, the hardness increased by 38% as a percentage. The ECAP technique has been found to significantly enhance the yield strength of AA-6061 by an impressive 180%. Additionally, the electrical conductivity of the alloy has been observed to increase from 41.5% to 45% IACS after undergoing the ECAP process. The ECAP process results in an 8.4% increase in electrical conductivity when subjected to a strain rate of 0.008s-1.

Keywords

ECAP AA-6061 Microstructure OM, SEM. Hardness Compression rate

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

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