Figure 10 | Scientific Reports

Figure 10

From: Elucidating the dual role of grain boundaries as dislocation sources and obstacles and its impact on toughness and brittle-to-ductile transition

Figure 10

Second definition of the BDT temperature. The intersection of the toughness-over-temperature curve with the yield-stress-over-temperature curve gives the BDT temperature. (a) Variation of the free path according to case study I; (b) variation of source spacing together with free path according to case study III. The curves for the yield stress are obtained from experimental data that has been re-scaled according to the Hall-Petch relation.

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