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Article Dans Une Revue Journal of Alloys and Compounds Année : 2017

Co-segregation of boron and carbon atoms at dislocations in steel

Résumé

A dual phase micro-alloyed steel was investigated by atom probe tomography (APT) highlighting boron and carbon co-segregation at dislocations in ferrite and martensite phases. Segregation levels were measured by an original method allowing quantification of the solute excess numbers associated to a dislocation. Applying this method to our APT results, it was observed that the segregation level of boron is higher in martensite than in ferrite. In the martensitic phase, 30% of all boron atoms in the analyzed volume are segregated to the dislocation. (C) 2017 Elsevier B.V. All rights reserved.
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Dates et versions

hal-01789218 , version 1 (09-05-2018)

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G. da Rosa, Philippe Maugis, J. Drillet, V. Hebert, K. Hoummada. Co-segregation of boron and carbon atoms at dislocations in steel. Journal of Alloys and Compounds, 2017, 724, pp.1143 - 1148. ⟨10.1016/j.jallcom.2017.07.096⟩. ⟨hal-01789218⟩
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