Influence of M23C6 dissolution on the kinetics of ferrite to austenite transformation in Fe-11Cr-0.06C stainless steel
The design of high-strength martensitic stainless steels requires an accurate control over the stability of undesired phases, like carbides and ferrite, which can hamper strength and ductility. Here, the ferrite to austenite transformation in Fe-11Cr-0.06C has been studied with a combined experiment...
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| Format: | Article |
| Language: | English |
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Elsevier
2019-01-01
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| Series: | Materials & Design |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127518308761 |
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| author | Alvise Miotti Bettanini Lipeng Ding Jean-Denis Mithieux Coralie Parrens Hosni Idrissi Dominique Schryvers Laurent Delannay Thomas Pardoen Pascal J. Jacques |
| author_facet | Alvise Miotti Bettanini Lipeng Ding Jean-Denis Mithieux Coralie Parrens Hosni Idrissi Dominique Schryvers Laurent Delannay Thomas Pardoen Pascal J. Jacques |
| author_sort | Alvise Miotti Bettanini |
| collection | DOAJ |
| description | The design of high-strength martensitic stainless steels requires an accurate control over the stability of undesired phases, like carbides and ferrite, which can hamper strength and ductility. Here, the ferrite to austenite transformation in Fe-11Cr-0.06C has been studied with a combined experimental-modelling approach. Experimental observations of the austenization process indicate that austenite growth proceeds in multiple steps, each one characterized by a different transformation rate. DICTRA based modelling reveals that the dissolution of the M23C6 Cr-rich carbides leads to Cr partitioning between austenite and parent phases, which controls the rate of transformation through (i) a soft-impingement effect and (ii) consequent stabilization of the ferrite, which remains untransformed inside chromium-enriched-zones even after prolonged austenization stage. Slow heating rate and smaller initial particle sizes allow the design of ferrite-free microstructure. |
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| format | Article |
| id | doaj.art-e0e18b6ef8804478a2ae956df5ab78a7 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-12-22T13:34:29Z |
| publishDate | 2019-01-01 |
| publisher | Elsevier |
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| series | Materials & Design |
| spelling | doaj.art-e0e18b6ef8804478a2ae956df5ab78a72022-12-21T18:24:06ZengElsevierMaterials & Design0264-12752019-01-01162362374Influence of M23C6 dissolution on the kinetics of ferrite to austenite transformation in Fe-11Cr-0.06C stainless steelAlvise Miotti Bettanini0Lipeng Ding1Jean-Denis Mithieux2Coralie Parrens3Hosni Idrissi4Dominique Schryvers5Laurent Delannay6Thomas Pardoen7Pascal J. Jacques8Institute of Mechanics, Materials and Civil Engineering, Université catholique de Louvain, Louvain-la-Neuve B-1348, Belgium; Corresponding author.Institute of Mechanics, Materials and Civil Engineering, Université catholique de Louvain, Louvain-la-Neuve B-1348, Belgium; Electron Microscopy for Materials Science (EMAT), Department of Physics, University of Antwerp, Antwerp 2020, BelgiumAperam Research Center, Isbergues BP 15, 62230, FranceAperam Research Center, Isbergues BP 15, 62230, FranceInstitute of Mechanics, Materials and Civil Engineering, Université catholique de Louvain, Louvain-la-Neuve B-1348, Belgium; Electron Microscopy for Materials Science (EMAT), Department of Physics, University of Antwerp, Antwerp 2020, BelgiumElectron Microscopy for Materials Science (EMAT), Department of Physics, University of Antwerp, Antwerp 2020, BelgiumInstitute of Mechanics, Materials and Civil Engineering, Université catholique de Louvain, Louvain-la-Neuve B-1348, BelgiumInstitute of Mechanics, Materials and Civil Engineering, Université catholique de Louvain, Louvain-la-Neuve B-1348, BelgiumInstitute of Mechanics, Materials and Civil Engineering, Université catholique de Louvain, Louvain-la-Neuve B-1348, BelgiumThe design of high-strength martensitic stainless steels requires an accurate control over the stability of undesired phases, like carbides and ferrite, which can hamper strength and ductility. Here, the ferrite to austenite transformation in Fe-11Cr-0.06C has been studied with a combined experimental-modelling approach. Experimental observations of the austenization process indicate that austenite growth proceeds in multiple steps, each one characterized by a different transformation rate. DICTRA based modelling reveals that the dissolution of the M23C6 Cr-rich carbides leads to Cr partitioning between austenite and parent phases, which controls the rate of transformation through (i) a soft-impingement effect and (ii) consequent stabilization of the ferrite, which remains untransformed inside chromium-enriched-zones even after prolonged austenization stage. Slow heating rate and smaller initial particle sizes allow the design of ferrite-free microstructure.http://www.sciencedirect.com/science/article/pii/S0264127518308761 |
| spellingShingle | Alvise Miotti Bettanini Lipeng Ding Jean-Denis Mithieux Coralie Parrens Hosni Idrissi Dominique Schryvers Laurent Delannay Thomas Pardoen Pascal J. Jacques Influence of M23C6 dissolution on the kinetics of ferrite to austenite transformation in Fe-11Cr-0.06C stainless steel Materials & Design |
| title | Influence of M23C6 dissolution on the kinetics of ferrite to austenite transformation in Fe-11Cr-0.06C stainless steel |
| title_full | Influence of M23C6 dissolution on the kinetics of ferrite to austenite transformation in Fe-11Cr-0.06C stainless steel |
| title_fullStr | Influence of M23C6 dissolution on the kinetics of ferrite to austenite transformation in Fe-11Cr-0.06C stainless steel |
| title_full_unstemmed | Influence of M23C6 dissolution on the kinetics of ferrite to austenite transformation in Fe-11Cr-0.06C stainless steel |
| title_short | Influence of M23C6 dissolution on the kinetics of ferrite to austenite transformation in Fe-11Cr-0.06C stainless steel |
| title_sort | influence of m23c6 dissolution on the kinetics of ferrite to austenite transformation in fe 11cr 0 06c stainless steel |
| url | http://www.sciencedirect.com/science/article/pii/S0264127518308761 |
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