GRAIN REFINEMENT AND MICROSTRUCTURE EVOLUTION IN ALUMINUM A2618 ALLOY BY HIGH-PRESSURE TORSION
Keyword(s):
This work presents a study related to the grain refinement of an aluminum A2618 alloy achieved by High-Pressure Torsion (HPT) known as a process of Severe Plastic Deformation (SPD). The HPT is conducted on disks of the alloy under an applied pressure of 6 GPa for 1 and 5 turns with a rotation speed of 1 rpm at room temperature. The HPT processing leads to microstructural refinement with an average grain size of ~250 nm at a saturation level after 5 turns. Gradual increases in hardness are observed from the beginning of straining up to a saturation level. This study thus suggests that hardening due to grain refinement is attained by the HPT processing of the A2618 alloy at room temperature.
Microstructural Evolution in an Al-6061 Alloy Processed by High-Pressure Torsion and Rapid Annealing
2010 ◽
Vol 667-669
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pp. 223-228
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Keyword(s):
Al 6061
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2010 ◽
Vol 667-669
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pp. 397-402
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2016 ◽
Vol 879
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pp. 1957-1962
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2007 ◽
Vol 539-543
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pp. 80-85
2014 ◽
Vol 783-786
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pp. 2617-2622
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2012 ◽
Vol 715-716
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pp. 51-60
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