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Article | REF: M4165 V1

Fracture tests - shock tests

Author: Dominique FRANÇOIS

Publication date: December 10, 2007

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2. Notion of ductility transition temperature

2.1 Tests on smooth specimens

We consider the case of metals that can fracture by cleavage: face-centered cubics and hexagonal metals, to the exclusion of face-centered cubics. The example most often considered is that of ferritic steels.

The yield strength R e decreases with increasing temperature T (figure 5 ). At a critical temperature T c , R e meets the curve representative of the cleavage stress σ f . Slightly above this temperature,...

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Notion of ductility transition temperature
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