期刊
SCRIPTA MATERIALIA
卷 162, 期 -, 页码 181-184出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2018.11.012
关键词
Steels; Quenching and partitioning; Partitioning; High Energy X-Ray Diffraction; Atom probe tomography
类别
资金
- French National Research Agency through the project CAPNANO
The alloying elements partitioning from martensite to austenite during quenching and partitioning was analysed by coupling in situ High Energy X-Ray Diffraction experiments and 3D atom probe tomography. A rapid and significant carbon partitioning from martensite to austenite without any partitioning of both Mn and Si was highlighted while the interface was immobile. After a relatively short time at 400 degrees C, a clear Mn partitioning occurs at the vicinity of the alpha'/-gamma interface. The analysis conducted indicates that manganese equilibrates its chemical potential during partitioning and raises the issue of the Constrained Carbon Equilibrium model applicability throughout the partitioning process. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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