University of Oulu

Pohjonen, A.; Somani, M.; Porter, D. Effects of Chemical Composition and Austenite Deformation on the Onset of Ferrite Formation for Arbitrary Cooling Paths. Metals 2018, 8, 540.

Effects of chemical composition and austenite deformation on the onset of ferrite formation for arbitrary cooling paths

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Author: Pohjonen, Aarne1; Somani, Mahesh1; Porter, David1
Organizations: 1Materials and Production Technology Department, University of Oulu
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.2 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2018091035381
Language: English
Published: Multidisciplinary Digital Publishing Institute, 2018
Publish Date: 2018-09-10
Description:

Abstract

We present a computational method for calculating the phase transformation start for arbitrary cooling paths and for different steel compositions after thermomechanical treatments. We apply the method to quantitatively estimate how much austenite deformation and how many different alloying elements affect the transformation start at different temperatures. The calculations are done for recrystallized steel as well as strain hardened steel, and the results are compared. The method is parameterized using continuous cooling transformation (CCT) data as an input, and it can be easily adapted for different thermomechanical treatments when corresponding CCT data is available. The analysis can also be used to obtain estimates for the range of values for parameters in more detailed microstructure models.

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Series: Metals
ISSN: 2075-4701
ISSN-E: 2075-4701
ISSN-L: 2075-4701
Volume: 8
Issue: 7
Article number: 540
DOI: 10.3390/met8070540
OADOI: https://oadoi.org/10.3390/met8070540
Type of Publication: A1 Journal article – refereed
Field of Science: 216 Materials engineering
Subjects:
CCT
TTT
Funding: This research was funded by TEKES through Finnish Metals and Engineering Competence Cluster (FIMECC) System Integrated Metals Processing (SIMP) Showcase 2.2 program as well as Digital Internet Materials & Engineering Co-Creation (DIMECC) Flex project.
Copyright information: © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
  https://creativecommons.org/licenses/by/4.0/