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Modelling of induction hardening in low alloy steels

Fisk, M. LU ; Lindgren, L. E.; Datchary, W. and Deshmukh, V. (2018) In Finite Elements in Analysis and Design 144. p.61-75
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... (More)

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.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
50CrMo4, AISI 4150, Austenite, Ferromagnetism, Induction heating, Martensite
in
Finite Elements in Analysis and Design
volume
144
pages
15 pages
publisher
Elsevier
external identifiers
  • scopus:85044131610
ISSN
0168-874X
DOI
10.1016/j.finel.2018.03.002
language
English
LU publication?
yes
id
c39a8b34-ecbc-4561-be66-eae1abf9f00c
date added to LUP
2018-04-03 13:50:21
date last changed
2019-03-12 04:07:42
@article{c39a8b34-ecbc-4561-be66-eae1abf9f00c,
  abstract     = {<p>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.</p>},
  author       = {Fisk, M. and Lindgren, L. E. and Datchary, W. and Deshmukh, V.},
  issn         = {0168-874X},
  keyword      = {50CrMo4,AISI 4150,Austenite,Ferromagnetism,Induction heating,Martensite},
  language     = {eng},
  month        = {05},
  pages        = {61--75},
  publisher    = {Elsevier},
  series       = {Finite Elements in Analysis and Design},
  title        = {Modelling of induction hardening in low alloy steels},
  url          = {http://dx.doi.org/10.1016/j.finel.2018.03.002},
  volume       = {144},
  year         = {2018},
}