University of Oulu

Seppälä, O., Pohjonen, A., Kaijalainen, A., Larkiola, J., Porter, D. (2018) Simulation of bainite and martensite formation using a novel cellular automata method. Procedia Manufacturing, 15, 1856-1863. doi:10.1016/j.promfg.2018.07.204

Simulation of bainite and martensite formation using a novel cellular automata method

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Author: Oskari, Seppälä1; Pohjonen, Aarne1; Kaijalainen, Antti1;
Organizations: 1Materials and Production Engineering, University of Oulu
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.8 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2018102238564
Language: English
Published: Elsevier, 2018
Publish Date: 2018-10-22
Description:

Abstract

A novel two-dimensional cellular automata model for simulating the formation of lath martensite and bainite in steels during cooling is presented. The model is parameterized using fitted Johnson-Mehl-Avrami-Kolmogorov (JMAK) and Koistinen-Marburger equations and by comparing predictions to scanning electron microscopy images of the actual microstructures after cooling. The results of this simulation can be used to estimate the fractions, shapes and sizes of bainite and martensite for different cooling rates, which should offer new possibilities for the qualitative estimation of the mechanical properties of high-strength steels with bainitic – martensitic microstructures formed from recrystallized or thermomechanically deformed austenite.

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Series: Procedia manufacturing
ISSN: 2351-9789
ISSN-E: 2351-9789
ISSN-L: 2351-9789
Volume: 15
Pages: 1856 - 1863
DOI: 10.1016/j.promfg.2018.07.204
OADOI: https://oadoi.org/10.1016/j.promfg.2018.07.204
Host publication editor: Mori, Ken-ichiro
Abe, Yohei
Maeno, Tomoyoshi
Conference: 17th International Conference on Metal Forming
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
216 Materials engineering
Subjects:
Copyright information: © 2018 The Authors. Published by Elsevier B.V. under a Creative Commons license.
  https://creativecommons.org/licenses/by-nc-nd/4.0/