New phenomenological quality criteria for continuous casting of steel based on solidification and microstructure tool IDS
| Autor: | Jyrki Miettinen, Mahesh C. Somani, Ville-Valtteri Visuri, Timo Fabritius, Seppo Louhenkilpi, Sami Koskenniska |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Work (thermodynamics)
casting defect Materials science phase transformation media_common.quotation_subject quality criteria 0211 other engineering and technologies austenite decomposition 02 engineering and technology 01 natural sciences Continuous casting 0103 physical sciences Materials Chemistry Quality (business) 021102 mining & metallurgy media_common 010302 applied physics Mechanical Engineering Metallurgy Metals and Alloys Casting defect Microstructure simulation Grain growth grain growth Mechanics of Materials solidification |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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