Precipitation kinetics of ferritic / martensitic oxide dispersion strengthened steels: Influence of the matrix phase transformation

被引：0
作者：
Spartacus, Gabriel [1 ,3 ]
Malaplate, Joel
De Geuser, Frederic
Mouton, Isabelle [1 ,2 ]
Sornin, Denis [1 ]
Guilloua, Raphaelle
Deschamps, Alexis [2 ]
机构：
[1] Univ Paris Saclay, Serv Rech Materiaux & Procedes Avances, CEA, F-91191 Gif Sur Yvette, France
[2] Univ Grenoble Alpes, CNRS, Grenoble INP, SIMAP, F-38000 Grenoble, France
[3] KTH Royal Inst Technol, Dept Mat Sci & Engn, SE-10044 Stockholm, Sweden
来源：
ACTA MATERIALIA | 2024年 / 280卷
关键词：
ODS steel; Ferritic/Martensitic steel; Precipitation; Nano-oxides; Small angle X-ray; scattering (SAXS); Atom probe tomography (APT); CREEP-PROPERTIES; ODS STEELS; PARTICLES; MECHANISMS; CR; DEFORMATION; TEMPERATURE; ANISOTROPY; EVOLUTION; TI;
D O I：
10.1016/j.actamat.2024.120328
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
ODS steels are candidate materials for the future generation of nuclear power plants. Ferritic / Martensitic (F/M) ODS steels display better formability thanks to high temperature austenitic transformation. The precipitation kinetics of a F/M Fe-9Cr ODS steel during powder consolidation up to 1100 degrees C has been characterized by in-situ Small Angle X-ray Scattering (SAXS). The influence of the matrix phase transformation has been established, showing an increase of the growth rate of the nano-oxides in austenite, leading to nano-oxides similar to 2x larger in diameter than in Fe-14Cr ferritic ODS grades at the end of the thermal treatment. These results are further supported by local atom probe tomography (APT) performed across grains showing contrasted microstructure and composition. Anomalous SAXS as well as comparison between APT and SAXS provide evidence that the nano-oxides stabilize with a Y2Ti2O7 or Y2TiO5 stoichiometry around 1100 degrees C.
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页数：9
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共 40 条
[1]   On the role of alloy composition and processing parameters in nanocluster formation and dispersion strengthening in nanostuctured ferritic alloys [J].
Alinger, M. J. ;
Odette, G. R. ;
Hoelzer, D. T. .
ACTA MATERIALIA, 2009, 57 (02) :392-406
[2]   Trainable Weka Segmentation: a machine learning tool for microscopy pixel classification [J].
Arganda-Carreras, Ignacio ;
Kaynig, Verena ;
Rueden, Curtis ;
Eliceiri, Kevin W. ;
Schindelin, Johannes ;
Cardona, Albert ;
Seung, H. Sebastian .
BIOINFORMATICS, 2017, 33 (15) :2424-2426
[3]   Microstructural evolution of Y2O3 and MgAl2O4ODS EUROFER steels during their elaboration by mechanical milling and hot isostatic pressing [J].
Cayron, C ;
Rath, E ;
Chu, I ;
Launois, S .
JOURNAL OF NUCLEAR MATERIALS, 2004, 335 (01) :83-102
[4]   Microstructure characterization and strengthening mechanisms of oxide dispersion strengthened (ODS) Fe-9% Cr and Fe-14% Cr extruded bars [J].
Chauhan, A. ;
Bergner, F. ;
Etienne, A. ;
Aktaa, J. ;
de Carlan, Y. ;
Heintze, C. ;
Litvinov, D. ;
Hernandez-Mayoral, M. ;
Onorbe, E. ;
Radiguet, B. ;
Ulbricht, A. .
JOURNAL OF NUCLEAR MATERIALS, 2017, 495 :6-19
[5]   Influence of temperature and strain rate on the deformation and damage mechanisms of oxide dispersion strengthened ferritic steels [J].
Dade, M. ;
Malaplate, J. ;
Garnier, J. ;
Barcelo, F. ;
Mompiou, F. ;
Wident, P. ;
Deschamps, A. .
MATERIALIA, 2018, 4 :585-594
[6]   Determination of Matrix Composition Based on Solute-Solute Nearest-Neighbor Distances in Atom Probe Tomography [J].
De Geuser, F. ;
Lefebvre, W. .
MICROSCOPY RESEARCH AND TECHNIQUE, 2011, 74 (03) :257-263
[7]   Metrology of small particles and solute clusters by atom probe tomography [J].
De Geuser, Frederic ;
Gault, Baptiste .
ACTA MATERIALIA, 2020, 188 :406-415
[8]   On the validity of simple precipitate size measurements by small-angle scattering in metallic systems [J].
Deschamps, Alexis ;
De Geuser, Frederic .
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2011, 44 :343-352
[9]   Atom probe tomography data analysis procedure for precipitate and cluster identification in a Ti-Mo steel [J].
Dhara, S. ;
Marceau, R. K. W. ;
Wood, K. ;
Dorin, T. ;
Timokhina, I. B. ;
Hodgson, P. D. .
DATA IN BRIEF, 2018, 18 :968-982
[10]   Stability of untransformed ferrite in 10Cr ODS steel [J].
Durand, Anthony ;
Sornin, Denis ;
Tache, Olivier ;
Guilbert, Thomas ;
Brisset, Francois ;
Delbes, Ludovic ;
Baptiste, Benoit ;
Baudin, Thierry ;
Loge, Roland .
JOURNAL OF NUCLEAR MATERIALS, 2023, 574
1234