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Article Dans Une Revue ISIJ international Année : 2014

An original way for producing a 2.4 GPa strength ductile steel by rolling of martensite

Résumé

A compositionally-graded steel composed of martensite with 0.4%C on the centre and bainite with 0.1%C on the surface was manufactured by partial decarburization. It is reported that the as quenched material can be cold rolled up to an equivalent strain of 1.5 without cracks. The mechanical properties of the cold-rolled material exhibits up to 2.5 GPa strength and ductility. A simple mechanical model is developed to predict the stress state after rolling of the graded structure explaining the good ductility of the present high strength materials.
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Dates et versions

hal-01097810 , version 1 (22-12-2014)

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Jean-Philippe Masse, Bechir Chehab, Hatem Zurob, David Embury, Xian Wang, et al.. An original way for producing a 2.4 GPa strength ductile steel by rolling of martensite. ISIJ international, 2014, 54, pp.235-239. ⟨10.2355/isijinternational.54.235⟩. ⟨hal-01097810⟩
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