Bainitic Ferrite Plate Thickness Evolution in Two Nanostructured Steels
Bainitic ferrite plate thickness evolution during isothermal transformation was followed at the same holding temperatures in two nanostructured steels containing (in wt.%) 1C-2Si and 0.4C-3Si. A dynamic picture of how the bainitic transformation evolves was obtained from the characterization of the...
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MDPI AG
2021-08-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/15/4347 |
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| author | Victor Ruiz-Jimenez Jose A. Jimenez Francisca G. Caballero Carlos Garcia-Mateo |
| author_facet | Victor Ruiz-Jimenez Jose A. Jimenez Francisca G. Caballero Carlos Garcia-Mateo |
| author_sort | Victor Ruiz-Jimenez |
| collection | DOAJ |
| description | Bainitic ferrite plate thickness evolution during isothermal transformation was followed at the same holding temperatures in two nanostructured steels containing (in wt.%) 1C-2Si and 0.4C-3Si. A dynamic picture of how the bainitic transformation evolves was obtained from the characterization of the microstructure present at room temperature after full and partial transformation at 300 and 350 °C. The continuous change during transformation of relevant parameters influencing the final scale of the microstructure, YS of austenite, driving force of the transformation and evolution of the transformation rate has been tracked, and these variations have been correlated to the evolution of the bainitic ferrite plate. Instead of the expected refinement of the plate predicted by existing theory and models, this study revealed a thickening of the bainitic ferrite plate thickness as the transformation progresses, which is partially explained by changes in the transformation rate through the whole decomposition of austenite into bainitic ferrite. |
| first_indexed | 2024-03-10T09:12:09Z |
| format | Article |
| id | doaj.art-81c30935799f48b6b7d9d113179c8b55 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T09:12:09Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-81c30935799f48b6b7d9d113179c8b552023-11-22T05:55:26ZengMDPI AGMaterials1996-19442021-08-011415434710.3390/ma14154347Bainitic Ferrite Plate Thickness Evolution in Two Nanostructured SteelsVictor Ruiz-Jimenez0Jose A. Jimenez1Francisca G. Caballero2Carlos Garcia-Mateo3MATERALIA Research Group, Department of Physical Metallurgy, National Center for Metallurgical Research (CENIM-CSIC), Avenida Gregorio del Amo, 8, 28040 Madrid, SpainMATERALIA Research Group, Department of Physical Metallurgy, National Center for Metallurgical Research (CENIM-CSIC), Avenida Gregorio del Amo, 8, 28040 Madrid, SpainMATERALIA Research Group, Department of Physical Metallurgy, National Center for Metallurgical Research (CENIM-CSIC), Avenida Gregorio del Amo, 8, 28040 Madrid, SpainMATERALIA Research Group, Department of Physical Metallurgy, National Center for Metallurgical Research (CENIM-CSIC), Avenida Gregorio del Amo, 8, 28040 Madrid, SpainBainitic ferrite plate thickness evolution during isothermal transformation was followed at the same holding temperatures in two nanostructured steels containing (in wt.%) 1C-2Si and 0.4C-3Si. A dynamic picture of how the bainitic transformation evolves was obtained from the characterization of the microstructure present at room temperature after full and partial transformation at 300 and 350 °C. The continuous change during transformation of relevant parameters influencing the final scale of the microstructure, YS of austenite, driving force of the transformation and evolution of the transformation rate has been tracked, and these variations have been correlated to the evolution of the bainitic ferrite plate. Instead of the expected refinement of the plate predicted by existing theory and models, this study revealed a thickening of the bainitic ferrite plate thickness as the transformation progresses, which is partially explained by changes in the transformation rate through the whole decomposition of austenite into bainitic ferrite.https://www.mdpi.com/1996-1944/14/15/4347bainitetransformation kineticsretained austeniteplate thickness |
| spellingShingle | Victor Ruiz-Jimenez Jose A. Jimenez Francisca G. Caballero Carlos Garcia-Mateo Bainitic Ferrite Plate Thickness Evolution in Two Nanostructured Steels Materials bainite transformation kinetics retained austenite plate thickness |
| title | Bainitic Ferrite Plate Thickness Evolution in Two Nanostructured Steels |
| title_full | Bainitic Ferrite Plate Thickness Evolution in Two Nanostructured Steels |
| title_fullStr | Bainitic Ferrite Plate Thickness Evolution in Two Nanostructured Steels |
| title_full_unstemmed | Bainitic Ferrite Plate Thickness Evolution in Two Nanostructured Steels |
| title_short | Bainitic Ferrite Plate Thickness Evolution in Two Nanostructured Steels |
| title_sort | bainitic ferrite plate thickness evolution in two nanostructured steels |
| topic | bainite transformation kinetics retained austenite plate thickness |
| url | https://www.mdpi.com/1996-1944/14/15/4347 |
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