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Modelling of induction hardening in low alloy steels
Materials Science and Applied Mathematics, Malmö University.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Material- och solidmekanik.ORCID-id: 0000-0002-2544-9168
AB SKF.
AB SKF.
2018 (Engelska)Ingår i: Finite elements in analysis and design (Print), ISSN 0168-874X, E-ISSN 1872-6925, Vol. 144, s. 61-75Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

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.

Ort, förlag, år, upplaga, sidor
Elsevier, 2018. Vol. 144, s. 61-75
Nationell ämneskategori
Annan materialteknik
Forskningsämne
Materialmekanik
Identifikatorer
URN: urn:nbn:se:ltu:diva-67999DOI: 10.1016/j.finel.2018.03.002ISI: 000431206900006Scopus ID: 2-s2.0-85044131610OAI: oai:DiVA.org:ltu-67999DiVA, id: diva2:1191582
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Validerad;2018;Nivå 2;2018-03-19 (andbra)

Tillgänglig från: 2018-03-19 Skapad: 2018-03-19 Senast uppdaterad: 2018-07-18Bibliografiskt granskad

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Lindgren, Lars-Erik

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