Article ID Journal Published Year Pages File Type
1560201 Computational Materials Science 2015 5 Pages PDF
Abstract

•Cementite particle analysed by APT during the tempering of cold rolled martensite.•Particle with local partitionning of Mn, Cr and B.•Modification of the local equilibrium due to the presence of a 2D defect.•Simulation of the diffusion controlled reaction of cementite growth.

The spatial distribution of alloying elements in a cementite particle is analysed by Atom Probe Tomography (APT) during the tempering of a ferrite + martensite cold rolled microstructure. The local equilibrium conditions of formation of the cementite particle are at the origin of a strong enrichment in Manganese, Chromium and Boron. The presence of a 2-D defect such as a grain boundary modifies these local conditions and increases the enrichment. The diffusion controlled reaction of cementite growth is simulated with DICTRA software.

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Related Topics
Physical Sciences and Engineering Engineering Computational Mechanics
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