Localized Plastic Flow Autowaves and the Hall-Petch Relation for Al

Abstract:

The localization of plastic deformation was examined for polycrystalline aluminum samples having grain sizes in the range from 8·10^-3to 10 mm. It is found that the length of localized deformation autowaves is determined by the grain size of material. The localized plastic flow patterns emergent in the polycrystalline aluminum samples are found to be connected to the Hall-Petch relation. Two types of flow stress dependencies of grain size are distinguished.

• Periodical: Key Engineering Materials (Volumes 592-593)
• Pages: 271-274
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.592-593.271
• Online since: November 2013
• Authors: Lev B. Zuev, Natalya Zarikovskaya
• Keywords: Flow Stress, Grain Size, Localization, Plastic Flow, Strength

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