University of Oulu

Seppo Louhenkilpi, Jyrki Miettinen, Ville-Valtteri Visuri, Mahesh C. Somani, Sami Koskenniska & Timo Fabritius (2020) New phenomenological quality criteria for continuous casting of steel based on solidification and microstructure tool IDS, Ironmaking & Steelmaking, DOI: 10.1080/03019233.2020.1758994

New phenomenological quality criteria for continuous casting of steel based on solidification and microstructure tool IDS

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Author: Louhenkilpi, Seppo1,2; Miettinen, Jyrki1; Visuri, Ville-Valtteri1;
Organizations: 1Process Metallurgy Research Unit, University of Oulu, PO Box 4300, 90014 University of Oulu, Finland
2Department of Chemical and Metallurgical Engineering, Aalto University, PO Box 16200, 00076 Aalto, Finland
3Materials and Mechanical Engineering Research Unit, University of Oulu, PO Box 4200, 90014 University of Oulu, Finland
Format: article
Version: published version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe20201218101427
Language: English
Published: Informa, 2020
Publish Date: 2021-05-30
Description:

Abstract

The aim of this work was to derive new quality criteria based on steel composition and cooling pattern for continuous casting and for the subsequent cooling and reheating processes. The criteria were devised based on the outputs of multiphysics simulation tools for casting applications. The criteria were found to be good predictors of whether a steel grade combined with a given cooling pattern is prone to a specific defect. The criteria are useful in providing a theoretical justification as to why certain defects form or would form, and can be used for devising practical solutions to avoid them. In practice, the final determination of whether a defect will form depends on the cumulative impact of various single quality criteria combined with the models/data describing the developing mechanical and thermal stresses. In this paper, new quality criteria are proposed for different kinds of cracking-related and gas defects along with case examples.

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Series: Ironmaking & steelmaking
ISSN: 0301-9233
ISSN-E: 1743-2812
ISSN-L: 0301-9233
Volume: In press
DOI: 10.1080/03019233.2020.1758994
OADOI: https://oadoi.org/10.1080/03019233.2020.1758994
Type of Publication: A1 Journal article – refereed
Field of Science: 215 Chemical engineering
216 Materials engineering
Subjects:
Funding: The funding of this research activity within the framework of Genome of Steel (Profi3) by the Academy of Finland through project #311934 is gratefully acknowledged. V.-V. Visuri thanks the Walter Ahlström Foundation for financial support.
Copyright information: © 2020 Taylor & Francis. This is an Accepted Manuscript of an article published by Taylor & Francis in Ironmaking & Steelmaking on 30 May 2020, available online: https://doi.org/10.1080/03019233.2020.1758994.