Microstructural and Mechanical Properties of UFG Silver Subjected to Severe Plastic Deformation by ECAP

Abstract:

The present contribution is aimed at investigating the microstructure evolution of commercially pure silver under severe plastic deformation conditions. ECAP billets have been produced by using a die with channels intersecting at 90° and straining the samples at room temperature. The evolution of the microstructure as a function of imparted strain was evaluated by scanning electron microscopy as well as X-ray diffractometry. Furthermore, tensile properties were measured from ECAP billets in order to evaluate the strengthening and work hardening behaviour of silver as a function of structure evolution. Comparison in terms of grain structure and corresponding properties are also drawn by considering published data about Al-Mg-Si alloy samples ECAP-processed by identical routes and parameters.

• Periodical: Materials Science Forum (Volumes 706-709)
• Pages: 1847-1852
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.706-709.1847
• Online since: January 2012
• Authors: Giuliano Angella, Paola Bassani, Stefano Farè, Nora Lecis, Dario Ripamonti, Fabio Spagnoli, Ausonio Tuissi, Maurizio Vedani
• Keywords: Equal-Channel Angular Pressing (ECAP), Severe Plastic Deformation (SPD), Silver, Work-Hardening

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