Article ID Journal Published Year Pages File Type
1579778 Materials Science and Engineering: A 2009 5 Pages PDF
Abstract

In this note we propose a geometric parameter of a lognormal grain size distribution, denoted here as the representative grain size, that provides a natural link between the yield strength and work hardening response of a polycrystal and its grain size distribution. It is shown that using this representative grain size in place of the arithmetic mean of the grain size distribution produces a Hall–Petch slope that is independent of the size distribution. The utility of the proposed parameter in describing the work hardening behaviour of metals is also examined in the context of a viscoplastic self-consistent micromechanical model.

Related Topics
Physical Sciences and Engineering Materials Science Materials Science (General)
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