Modelling of induction hardening in low alloy steels

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Modelling of induction hardening in low alloy steels

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Publication Article, peer reviewed scientific
Title Modelling of induction hardening in low alloy steels
Author Fisk, Martin ; Lindgren, L. -E. ; Datchary, W. ; Deshmukh, V.
Date 2018
English abstract
Induction hardening is a useful method for improving resistance to surface indentation, fatigue and wear that is favoured in comparison with through hardening, which may lack necessary toughness. The process itself involves fast heating by induction with subsequent quenching, creating a martensitic layer at the surface of the workpiece. In the present work, we demonstrate how to simulate the process of induction hardening using a commercial finite element software package with focuses on validation of the electromagnetic and thermal parts, together with evolution of the microstructure. Experiments have been carried out using fifteen workpieces that have been heated using three different heating rates and five different peak temperatures resulting in different microstructures. It is found that the microstructure and hardening depth is affected by the heating rate and peak temperature. The agreement between the experimental and simulated results is good. Also, it is demonstrated that the critical equilibrium temperatures for phase transformation is important for good agreement between the simulated and experimental hardening depth. The developed simulation technique predicts the hardness and microstructure sufficiently well for design and the development of induction hardening processes.
DOI https://doi.org/10.1016/j.finel.2018.03.002 (link to publisher's fulltext.)
Publisher Elsevier
Host/Issue Finite Elements in Analysis and Design;
Volume 144
ISSN 0168-874X
Language eng (iso)
Subject Induction heating
Austenite
Martensite
Ferromagnetism
AISI 4150
50CrMo4
Technology
Research Subject Categories::TECHNOLOGY
Handle http://hdl.handle.net/2043/26689 Permalink to this page
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