Complex precipitation phenomena in strip cast steels with high sulfur and copper contents

Dorin, T., Taylor, A., Wood, K., Wang, J., Hodgson, P. D. and Stanford, N. 2016, Complex precipitation phenomena in strip cast steels with high sulfur and copper contents, Journal of applied crystallography, vol. 49, no. 5, pp. 1777-1785, doi: 10.1107/S1600576716013054.

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Title Complex precipitation phenomena in strip cast steels with high sulfur and copper contents
Author(s) Dorin, T.ORCID iD for Dorin, T.
Taylor, A.
Wood, K.
Wang, J.ORCID iD for Wang, J.
Hodgson, P. D.
Stanford, N.
Journal name Journal of applied crystallography
Volume number 49
Issue number 5
Start page 1777
End page 1785
Total pages 9
Publisher International Union of Crystallography
Place of publication Chester, Eng.
Publication date 2016-10
ISSN 0021-8898
Keyword(s) Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
small-angle neutron scattering
atom-probe tomography
direct strip casting
Summary A series of three steel alloys with increasing Cu and S concentrations has been prepared by simulated direct strip casting. It was found that the rapid solidification that occurs during direct strip casting results in the formation of a high number density of fine MnS precipitates, while Cu was retained in solid solution above equilibrium concentration. Upon ageing the MnS particles were found to coarsen and increase in volume fraction, indicating that some S was retained in solid solution in the as-cast condition. Ageing also resulted in the precipitation of Cu-rich precipitates. A new method to determine precipitate composition from small-angle neutron scattering is presented. This methodology, in conjunction with atom-probe tomography, has been used to show that the composition of the Cu-rich precipitates depends on the alloy's bulk Cu content.
Language eng
DOI 10.1107/S1600576716013054
Field of Research 099999 Engineering not elsewhere classified
Socio Economic Objective 0 Not Applicable
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, International Union of Crystallography
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