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Austenite-ferrite interface crystallography dependence of sigma phase precipitation using the five-parameter characterization approach.

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Title: Austenite-ferrite interface crystallography dependence of sigma phase precipitation using the five-parameter characterization approach.
Authors: Haghdadi, N.1, Abou-Ras, D.2, Cizek, P.1, Hodgson, P. D.1, Rollett, A. D.3, Beladi, H.1 hossein.beladi@deakin.edu.au
Source: Materials Letters. Jun2017, Vol. 196, p264-268. 5p.
Subjects: Austenite, Ferrites, Crystallography, Precipitation (Chemistry), Interfaces (Physical sciences)
Abstract: In the current study, the propensity of austenite-ferrite interface to sigma phase precipitation was investigated in a duplex stainless steel. The crystallographic characteristics of the interphase interfaces significantly affected the tendency to sigma phase precipitation. The lattice misorientation was found to be an insufficient criterion to fully define the interface character and ultimately the propensity of austenite-ferrite interface to sigma phase precipitation. The interphase interfaces with a rational orientation relationship, considering all five crystallographic parameters, generally exhibited the lowest sigma precipitation propensity. This could be attributed to the high sigma precipitation nucleation barrier energy and low diffusion rate at (semi-)coherent interphases. [ABSTRACT FROM AUTHOR]
Copyright of Materials Letters is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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An: 122364814
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  Data: <searchLink fieldCode="JN" term="%22Materials+Letters%22">Materials Letters</searchLink>. Jun2017, Vol. 196, p264-268. 5p.
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  Data: <searchLink fieldCode="DE" term="%22Austenite%22">Austenite</searchLink><br /><searchLink fieldCode="DE" term="%22Ferrites%22">Ferrites</searchLink><br /><searchLink fieldCode="DE" term="%22Crystallography%22">Crystallography</searchLink><br /><searchLink fieldCode="DE" term="%22Precipitation+%28Chemistry%29%22">Precipitation (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Interfaces+%28Physical+sciences%29%22">Interfaces (Physical sciences)</searchLink>
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  Data: In the current study, the propensity of austenite-ferrite interface to sigma phase precipitation was investigated in a duplex stainless steel. The crystallographic characteristics of the interphase interfaces significantly affected the tendency to sigma phase precipitation. The lattice misorientation was found to be an insufficient criterion to fully define the interface character and ultimately the propensity of austenite-ferrite interface to sigma phase precipitation. The interphase interfaces with a rational orientation relationship, considering all five crystallographic parameters, generally exhibited the lowest sigma precipitation propensity. This could be attributed to the high sigma precipitation nucleation barrier energy and low diffusion rate at (semi-)coherent interphases. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Materials Letters is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.matlet.2017.03.090
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        Text: English
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        Type: general
      – SubjectFull: Ferrites
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      – SubjectFull: Crystallography
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      – SubjectFull: Precipitation (Chemistry)
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              Text: Jun2017
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