Composition-dependence of stacking fault energy in austenitic stainless steels through linear regression with random intercepts

The stacking fault energy (SFE) plays an important role in deformation behavior and radiation damage of FCC metals and alloys such as austenitic stainless steels. In the present communication, existing expressions to calculate SFE in those steels from chemical composition are reviewed and an improve...

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Bibliographic Details
Published in:Journal of nuclear materials 2017-08, Vol.492 (C), p.227-230
Main Authors: Meric de Bellefon, G., van Duysen, J.C., Sridharan, K.
Format: Article
Language:English
Subjects:
Alloy steels
Austenitic stainless steels
Chemical composition
Deformation
FCC metals
Metals
Radiation
Radiation damage
Regression analysis
Reviews
Stacking fault energy
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Summary:The stacking fault energy (SFE) plays an important role in deformation behavior and radiation damage of FCC metals and alloys such as austenitic stainless steels. In the present communication, existing expressions to calculate SFE in those steels from chemical composition are reviewed and an improved multivariate linear regression with random intercepts is used to analyze a new database of 144 SFE measurements collected from 30 literature references. It is shown that the use of random intercepts can account for experimental biases in these literature references. A new expression to predict SFE from austenitic stainless steel compositions is proposed.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2017.05.037