Computational analysis of austenite film thickness and C-redistribution in carbide-free bainite
In this work, a methodology for the computational analysis of some essential microstructural features of a bainitic microstructure is developed. The focus lies in the accurate prediction of the ferritic subunit size, the thickness of the residual austenite films, their corresponding C-enrichment and...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2021-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ac0d6f |
| _version_ | 1797746888932327424 |
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| author | P Retzl S Zamberger E Kozeschnik |
| author_facet | P Retzl S Zamberger E Kozeschnik |
| author_sort | P Retzl |
| collection | DOAJ |
| description | In this work, a methodology for the computational analysis of some essential microstructural features of a bainitic microstructure is developed. The focus lies in the accurate prediction of the ferritic subunit size, the thickness of the residual austenite films, their corresponding C-enrichment and the accompanying stabilization of the residual austenite. Basis of the approach is the T _0 -temperature concept in combination with the numerical simulation of C-diffusion profiles utilizing the cell diffusion module of the thermokinetic software package MatCalc. This methodology gives the opportunity to predict the C-distribution under consideration of consecutively forming subunits, which is necessary to estimate the C-content of austenite films. The simulations also take into account the effect of C trapping at the dislocations formed inside the ferritic platelets due to plastic deformation and its influence on the chemical potentials. Good agreement is achieved between measured and predicted retained austenite layer thickness and the C-enrichment of the layers accompanying the C redistribution process. |
| first_indexed | 2024-03-12T15:44:10Z |
| format | Article |
| id | doaj.art-87b07ffcfcf047f99728c39a4cd1e07f |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:44:10Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-87b07ffcfcf047f99728c39a4cd1e07f2023-08-09T15:50:56ZengIOP PublishingMaterials Research Express2053-15912021-01-018707650210.1088/2053-1591/ac0d6fComputational analysis of austenite film thickness and C-redistribution in carbide-free bainiteP Retzl0https://orcid.org/0000-0002-5450-8761S Zamberger1E Kozeschnik2TU Wien, Institute of Material Science and Technology, Getreidemarkt 9, 1060 Wien, Austria; Materials Center Leoben Forschung GmbH, Roseggerstraße 12, 8700 Leoben, AustriaMatCalc Engineering GmbH, Gumpendorferstraße 21, 1060 Wien, AustriaTU Wien, Institute of Material Science and Technology, Getreidemarkt 9, 1060 Wien, AustriaIn this work, a methodology for the computational analysis of some essential microstructural features of a bainitic microstructure is developed. The focus lies in the accurate prediction of the ferritic subunit size, the thickness of the residual austenite films, their corresponding C-enrichment and the accompanying stabilization of the residual austenite. Basis of the approach is the T _0 -temperature concept in combination with the numerical simulation of C-diffusion profiles utilizing the cell diffusion module of the thermokinetic software package MatCalc. This methodology gives the opportunity to predict the C-distribution under consideration of consecutively forming subunits, which is necessary to estimate the C-content of austenite films. The simulations also take into account the effect of C trapping at the dislocations formed inside the ferritic platelets due to plastic deformation and its influence on the chemical potentials. Good agreement is achieved between measured and predicted retained austenite layer thickness and the C-enrichment of the layers accompanying the C redistribution process.https://doi.org/10.1088/2053-1591/ac0d6fcarbon distributionaustenite filmbainitemicrostructure evolution |
| spellingShingle | P Retzl S Zamberger E Kozeschnik Computational analysis of austenite film thickness and C-redistribution in carbide-free bainite Materials Research Express carbon distribution austenite film bainite microstructure evolution |
| title | Computational analysis of austenite film thickness and C-redistribution in carbide-free bainite |
| title_full | Computational analysis of austenite film thickness and C-redistribution in carbide-free bainite |
| title_fullStr | Computational analysis of austenite film thickness and C-redistribution in carbide-free bainite |
| title_full_unstemmed | Computational analysis of austenite film thickness and C-redistribution in carbide-free bainite |
| title_short | Computational analysis of austenite film thickness and C-redistribution in carbide-free bainite |
| title_sort | computational analysis of austenite film thickness and c redistribution in carbide free bainite |
| topic | carbon distribution austenite film bainite microstructure evolution |
| url | https://doi.org/10.1088/2053-1591/ac0d6f |
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