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The determining role of magnetic field in iron and alloy carbide precipitation behaviors under the external field
University Of Cambridge.ORCID iD: 0000-0002-6339-4612
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2016 (English)In: Scripta Materialia, ISSN 1359-6462, E-ISSN 1872-8456, Vol. 120Article in journal (Refereed) Published
Abstract [en]

© 2016 Elsevier B.V. All rights reserved. A combined approach to calculate the thermodynamic properties of iron and alloy carbides including the thermal and magnetic contribution is derived. Special emphasis is placed on the role of Fe and Mo to the Gibbs free energy. Lower Mo concentration in the carbides corresponds to a higher thermal Gibbs free energy change. The higher Fe content and external magnetic field greatly increase the induced magnetization, reducing the magnetic Gibbs free energy substantially and therefore increase the formation temperature. The stability of M 2 C and M 3 C are mainly determined by the thermal factors, whereas magnetic field has a predominant contribution for M 6 C.

Place, publisher, year, edition, pages
2016. Vol. 120
Keywords [en]
Carbides, First-principle calculation, High magnetic field, Steels, Thermodynamics
National Category
Metallurgy and Metallic Materials
Research subject
Materials Science and Engineering; Metallurgical process science
Identifiers
URN: urn:nbn:se:kth:diva-227677DOI: 10.1016/j.scriptamat.2016.04.016OAI: oai:DiVA.org:kth-227677DiVA, id: diva2:1205124
Note

QC 20180604

Available from: 2018-05-10 Created: 2018-05-10 Last updated: 2018-06-04Bibliographically approved

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