Anomalies in carbon concentration determinations from nanostructured bainite
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Authors
Bhadeshia, HKDH
Abstract
jats:p There are large discrepancies in the measured concentrations of carbon in the ferrite and austenite within nanostructured bainite and carbide-free bainitic steels in general. The concentrations are usually measured on the basis of lattice parameters determined using X-ray diffraction, lattice imaging in transmission microscopy, or using the atom probe technique, i.e. time-of-flight mass spectroscopy. We examine here a number of difficulties with these methods and assess the role of defects, crystal symmetry and the heterogeneous distribution of carbon in interpreting the experimental data. Issues where experimental and theoretical work is needed are identified. </jats:p>
Description
Keywords
Lattice parameters, Carbon, Dislocations, Density, Bainite, Retained austenite
Journal Title
Materials Science and Technology (United Kingdom)
Conference Name
Journal ISSN
0267-0836
1743-2847
1743-2847
Volume Title
31
Publisher
SAGE Publications