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Ilmola, J., Pohjonen, A., Seppälä, O., Leinonen, O., Larkiola, J., Jokisaari, J., Putaansuu, E., Lehtikangas, P. (2018) Coupled multiscale and multiphysical analysis of hot steel strip mill and microstructure formation during water cooling. Procedia Manufacturing, 15, 65-71. doi:10.1016/j.promfg.2018.07.171

Coupled multiscale and multiphysical analysis of hot steel strip mill and microstructure formation during water cooling

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Author: Ilmola, Joonas1; Pohjonen, Aarne1; Seppälä, Oskari1;
Organizations: 1Department of Material and Production Technology, University of Oulu
2SSAB Europe, Raahe Mill
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.2 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2018102538702
Language: English
Published: Elsevier, 2018
Publish Date: 2018-10-25
Description:

Abstract

In order to study the coupled effect of rolling deformation, heat transfer and water cooling on microstructure formation of a steel strip, a multiscale and multiphysical FE-model is developed. The deformation state and temperature distribution of the steel strip after the last rolling pass are required to calculate the final microstructure. The sub-model predicting final microstructure on the steel strip after accelerated water cooling is implemented numerically. Final phase fractions are calculated with the Johnson-Mehl-Avrami-Kolmogorov equation for different parts of the object, taking into account non-uniform temperature distribution.

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Series: Procedia manufacturing
ISSN: 2351-9789
ISSN-E: 2351-9789
ISSN-L: 2351-9789
Volume: 15
Pages: 65 - 71
DOI: 10.1016/j.promfg.2018.07.171
OADOI: https://oadoi.org/10.1016/j.promfg.2018.07.171
Host publication: Proceedings of the 17th International Conference on Metal Forming METAL FORMING 2018 September 16 – 19, 2018, Loisir Hotel Toyohashi, Toyohashi, Japan
Host publication editor: Mori, Ken-ichiro
Abe, Yohei
Maeno, Tomoyoshi
Conference: International Conference on Metal Forming
Type of Publication: A1 Journal article – refereed
Field of Science: 216 Materials engineering
Subjects:
Accelerated water cooling
FEM
Heat transfer
Hot strip rolling
Microstructure evolution
Phase fraction
Article
Funding: This research has been carried out with co-operation and funding from SSAB Europe.
Copyright information: © 2018 The Author(s). Published by Elsevier B.V. under a Creative Commons license.
  https://creativecommons.org/licenses/by-nc-nd/4.0/