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Visual analysis of solidification of δ–γ transformations in steels

Zhang, X. F. and Komizo, Y. (2013). Visual analysis of solidification of δ–γ transformations in steels. Materials Science and Technology, 29(5) pp. 631–635.

DOI (Digital Object Identifier) Link: https://doi.org/10.1179/1743284712Y.0000000183
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Abstract

The theory of solidification of steels and the kinetics of austenite to α-ferrite phase transformation were extensively studied; however, comparatively, little information is available concerning the kinetics of the <i.δ</i>-ferrite to austenite transformation due to the difficulty of making in situ observations. In the present study, a laser scanning confocal microscopy with an infrared image furnace was implemented with which the in situ observations at the high temperature of the dynamic behaviour of the δ/γ grain nucleation and growth and interphase boundaries of the steels are made possible. The solidification mode of the carbon steel and the austenitic stainless steel during welding can be directly observed, and the definitive sequence of phase transformation that led to the final microstructure was detected in real time. Finally, new experimental results will be presented and compared with previous studies.

Item Type: Journal Item
Copyright Holders: 2013 Institute of Materials, Minerals and Mining
ISSN: 1743-2847
Keywords: phase transformation; solidification; grain boundary migration; interphase boundary; in situ observation
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 41908
Depositing User: Xinfang Zhang
Date Deposited: 11 Feb 2015 13:27
Last Modified: 04 Oct 2016 11:42
URI: http://oro.open.ac.uk/id/eprint/41908
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