A study of deformation-induced phosphorus grain boundary segregation in an interstitial free steel

► Plastic deformation causes non-equilibrium grain boundary segregation of P in an IF steel. ► The segregation increases with increasing deformation strain until reaching a steady level. ► At the same strain the segregation increases with increasing strain rate. ► Model predictions exhibit a reasona...

Full description

Saved in:
Bibliographic Details
Published inMaterials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 545; pp. 86 - 90
Main Authors Chen, X.-M., Song, S.-H., Weng, L.-Q., Wang, K.
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier B.V 30.05.2012
Elsevier
Subjects
Applied sciences
Elasticity. Plasticity
Exact sciences and technology
Grain boundaries
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals and alloys
Metals. Metallurgy
Segregation
Grain boundaries
Segregation
Metals and alloys
Impurity
Vacancy
Phosphorus addition
Kinetic model
Optical microscopy
Interstitial free steel
Plasticity
Grain boundary segregation
Fractography
Auger electron spectrometry
Strain rate
Online AccessGet full text

Cover

More Information
Summary:► Plastic deformation causes non-equilibrium grain boundary segregation of P in an IF steel. ► The segregation increases with increasing deformation strain until reaching a steady level. ► At the same strain the segregation increases with increasing strain rate. ► Model predictions exhibit a reasonable agreement with the observations. Phosphorus grain boundary segregation in an interstitial free (IF) steel deformed at different temperatures and strain rates is measured by virtue of Auger electron spectroscopy (AES). The results reveal that the deformation-induced phosphorus grain boundary segregation has a non-equilibrium characteristic and increases with increasing deformation strain until reaching a steady value. In addition, the segregation of phosphorus increases more apparently for the specimen deformed at a lower temperature or a higher strain rate. Predictions with a kinetic model developed recently show a reasonable fit between the predictions and the observations, which indicates that the model is effective in the prediction of deformation-induced grain boundary segregation.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2012.03.003