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Fig. 8 | Materials Theory

Fig. 8

From: Annihilation and sources in continuum dislocation dynamics

Fig. 8

First 3 stages of work hardening in cooper rolling. Experimental measures marked by [×] obtained from Göttler (1973). Top-left: resolved shear stress(RSS) against plastic slip. Top-right: hardening-rate vs RSS; Hardening rate of experimental measures are obtained by fitting a 6th-order polynomial to stress-strain curve. Bottom-left: log-log plot of dislocation density vs RSS; This plot shows that dislocation density eventually saturates as the RSS can not increase any more. Bottom-right: Dislocation-entanglement (Φ=q/ρ1.5) vs plastic slip

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