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Enhanced thermal stability in nanostructured bainitic steel
University Of Cambridge.ORCID iD: 0000-0002-6339-4612
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2013 (English)In: Scripta Materialia, ISSN 1359-6462, E-ISSN 1872-8456, Vol. 69, no 2, p. 191-194Article in journal (Refereed) Published
Abstract [en]

We report an attempt at increasing the thermal stability of nanocrystalline bainite to tempering heat treatments by enhancing the silicon concentration of the alloy. Validation experiments have been conducted using synchrotron X-irradiation during tempering heat treatment. It is found that the change in alloying successfully stabilizes the austenite at elevated temperatures by retarding cementite formation to temperatures as high as 500 ˚C. Other changes reflected in the lattice parameters of the major phases have revealed further information about the mechanisms involved.

Place, publisher, year, edition, pages
Acta Materialia Inc. , 2013. Vol. 69, no 2, p. 191-194
Keywords [en]
austenite, cementite precipitation, nanostructured bainite, nanostructured carbide-free bainitic steel, nected network of retained, plates of bainitic ferrite, silicon, sists of very thin, synchrotron radiation, thermal stability, with a thickness
National Category
Metallurgy and Metallic Materials
Research subject
Materials Science and Engineering
Identifiers
URN: urn:nbn:se:kth:diva-227673DOI: 10.1016/j.scriptamat.2013.03.029OAI: oai:DiVA.org:kth-227673DiVA, id: diva2:1205128
Note

QC 20180604

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

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