Hall-Petch analysis for temperature and strain rate dependent deformation of polycrystalline lead

V. E. Panin, R. W. Armstrong

Division for Materials Science

Research output: Contribution to journal › Article

Abstract

A dislocation pile-up analysis of the Hall-Petch constant k_ε for the tensile deformation of polycrystalline lead over a wide range of temperature T and at two strain rates has been made. The predicted and experimental Hall-Petch dependencies k_ε ² = f (T) are in good agreement. Lower than predicted k_ε values at very low temperatures are attributed to the high curvature of grain boundaries which experience high localized plasticity and consequent shear banding.

Original language	English
Pages (from-to)	35-40
Number of pages	6
Journal	Physical Mesomechanics
Volume	19
Issue number	1
DOIs	https://doi.org/10.1134/S1029959916010045
Publication status	Published - 1 Jan 2016

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Keywords

agreement between theoretical and experimental Hall-Petch dependencies
crystal lattice curvature
dislocation pile-up analysis
polycrystalline lead
shear band development

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Surfaces and Interfaces

Cite this

Panin, V. E., & Armstrong, R. W. (2016). Hall-Petch analysis for temperature and strain rate dependent deformation of polycrystalline lead. Physical Mesomechanics, 19(1), 35-40. https://doi.org/10.1134/S1029959916010045

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Access to Document

10.1134/S1029959916010045