σ phase dissolution in duplex stainless steel at elevated temperature studied by thermal analysis

K. W. Wong; C. H. Shek; W. Zhang; J. K L Lai

doi:10.1016/j.matlet.2008.05.040

Author(s)

Detail(s)

Original language	English
Pages (from-to)	3991-3994
Journal / Publication	Materials Letters
Volume	62
Issue number	24
Publication status	Published - 15 Sept 2008

Link(s)

DOI	DOI https://doi.org/10.1016/j.matlet.2008.05.040 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-46249122354&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(b7b9e414-a75d-4b0f-a429-453f2b1b02c0).html

Abstract

The redissolution of σ phase to ferrite in duplex stainless steel (DSS) in high temperature range was studied by differential thermal analysis (DTA) and scanning electron microscopy. DSS samples were aged at different temperatures for various durations. The conditions were chosen such that all the ferrite transformed to σ phase. Subsequent DTA measurements revealed that the onset temperature T_s and the peak temperature T_p for sigma dissolution strongly depend on the initial distribution and the morphology of σ phase. This correlation between the DTA characteristic temperatures and prior ageing temperatures may be used for temperature indication purposes in applications involving hostile environments. © 2008 Elsevier B.V. All rights reserved.

Research Area(s)

Metallurgy, Microstructure, Thermal properties

Citation Format(s)

[ RIS ] [ BibTeX ]

σ phase dissolution in duplex stainless steel at elevated temperature studied by thermal analysis. / Wong, K. W.; Shek, C. H.; Zhang, W. et al.
In: Materials Letters, Vol. 62, No. 24, 15.09.2008, p. 3991-3994.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Wong, KW, Shek, CH , Zhang, W & Lai, JKL 2008, 'σ phase dissolution in duplex stainless steel at elevated temperature studied by thermal analysis', Materials Letters, vol. 62, no. 24, pp. 3991-3994. https://doi.org/10.1016/j.matlet.2008.05.040

Wong, K. W., Shek, C. H., Zhang, W., & Lai, J. K. L. (2008). σ phase dissolution in duplex stainless steel at elevated temperature studied by thermal analysis. Materials Letters, 62(24), 3991-3994. https://doi.org/10.1016/j.matlet.2008.05.040

Wong KW, Shek CH , Zhang W , Lai JKL. σ phase dissolution in duplex stainless steel at elevated temperature studied by thermal analysis. Materials Letters. 2008 Sept 15;62(24):3991-3994. doi: 10.1016/j.matlet.2008.05.040

Wong, K. W. ; Shek, C. H. ; Zhang, W. et al. / σ phase dissolution in duplex stainless steel at elevated temperature studied by thermal analysis. In: Materials Letters. 2008 ; Vol. 62, No. 24. pp. 3991-3994.