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Journal of Materials Science
Erschienen in: Journal of Materials Science 1/2015

01.01.2015

A procedure for indirect and automatic measurement of prior austenite grain size in bainite/martensite microstructures

verfasst von: L. Morales-Rivas, V. A. Yardley, C. Capdevila, C. Garcia-Mateo, H. Roelofs, F. G. Caballero

Erschienen in: Journal of Materials Science | Ausgabe 1/2015

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Abstract

An alternative procedure for indirect and automatic measurement of the prior austenite grain size (PAGS) in bainite/martensite is proposed in this work. It consists in the determination of an effective grain size by means of statistical post-processing of electron backscatter diffraction (EBSD) data. The algorithm developed for that purpose, which is available on-line, has been applied to simulated EBSD maps as well as to both nanocrystalline bainitic steel and commercial hot-rolled air-cooled steel with a granular bainitic microstructure. The new proposed method has been proven to be robust, and results are in good agreement with conventional PAGS measurements. The added value of the procedure comes from its simplicity, as no parent reconstruction is involved during the process, and its suitability for low-magnification EBSD maps, thus allowing a large step size and coverage of a substantially broader area of the sample than the previous methods reported.
Vorheriger Artikel In-situ crystal growth and photoluminescence properties of YBO3: Tb3+ microstructures
Nächster Artikel Modeling of free eutectic growth and competitive solidification in undercooled near-eutectic alloys based on in situ measurements

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Metadaten
Titel
A procedure for indirect and automatic measurement of prior austenite grain size in bainite/martensite microstructures
verfasst von
L. Morales-Rivas
V. A. Yardley
C. Capdevila
C. Garcia-Mateo
H. Roelofs
F. G. Caballero
Publikationsdatum
01.01.2015
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 1/2015
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-014-8584-6

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