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Experimental Investigations on Tribiological Properties of 6061-T6 Al Alloy by Via Friction Stir Processing( Vol-3,Issue-10,October 2017 ) |
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Author(s): A. Uday Kiran , E. Kavya Pravala |
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Keywords: |
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Nano surface composite, TiB2, Friction stir processing, SEM. |
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Abstract: |
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Microstructure and tribological properties of Al-TiB2 nano surface composite fabricated by Friction Stir Processing (FSP) were evaluated. To vary the percentage of TiB2 three different slot thickness viz. 1mm, 1.5 mm and 2mm were considered. Microstructural evaluations showed a nearly uniform distribution of TiB2 in the aluminium matrix after FSP with the addition of composite powder. Microhardness test results shoes FSW of Al6061-T6 alloy with 2mm groove width has more hardness. tribological properties were evaluated at two different sliding velocities 0.314m/s and 0.48m/s and results shows that at lower loads there is no much difference in wear rate of surface composite made with different slot sizes but with increase in load and sliding velocity wear rate was increased , however, larger slot Al6061-TiB2 Surface composites show better wear resistance. |
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