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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 922An Investigation of Mechanical Properties and...

An Investigation of Mechanical Properties and Microstructural Evolution in an Aluminum Alloy Processed by Severe Plastic Deformation

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Abstract:

Processing by a combination of equal-channel angular pressing (ECAP) and high-pressuretorsion (HPT) was performed on disks of an Al-7075 alloy. The alloy was annealed at 753 K, processedby ECAP for totals of 4 passes and then processed by HPT under a pressure of 6.0 GPa up to amaximum of 20 turns. Measurements of Vickers microhardness showed reasonable hardnesshomogeneity after processing through 20 turns. It is demonstrated that the results from mechanicaltesting and microstructural analysis are consistent with the hardness measurements.

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Periodical:

Advanced Materials Research (Volume 922)

Pages:

610-615

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.922.610

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Online since:

May 2014

Authors:

Shima Sabbaghianrad*, Terence Langdon

Keywords:

Aluminium Alloy, Equal-Channel Angular Pressing (ECAP), High-Pressure Torsion

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