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Large magnetoelastic effects in paramagnetic stainless steels from first principles
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Materials Science, Materials Theory.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Materials Science, Materials Theory.
2009 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 79, no 2, 024415- p.Article in journal (Refereed) Published
Abstract [en]

Using first-principles theories, we demonstrate that the elastic properties of substitutional disordered Fe-rich Fe-Cr-Ni alloys (austenitic stainless steels) sensitively depend on their magnetic state. Due to the strong magnetoelastic effects in paramagnetic Fe0.70Cr0.15Ni0.15 alloy, the room-temperature magnetism is found to alter the usually dominating chemical effects and give a large anomalous contribution to the temperature dependence of the elastic constants.

Place, publisher, year, edition, pages
2009. Vol. 79, no 2, 024415- p.
Keyword [en]
ab initio calculations, chromium alloys, elasticity, iron alloys, magnetoelastic effects, nickel alloys, paramagnetic materials, stainless steel
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-137334DOI: 10.1103/PhysRevB.79.024415ISI: 000262978100060OAI: oai:DiVA.org:uu-137334DiVA: diva2:378329
Available from: 2010-12-15 Created: 2010-12-15 Last updated: 2017-12-11Bibliographically approved

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Vitos, LeventeJohansson, Börje

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