Abnormal Anisotropic Dilatation During Bainitic Transformation of Ausformed Austenite
Abstract
There is significant anisotropic dilatation during bainitic transformation from plastically deformed austenite in a structurally and chemically homogenous alloy with no externally applied stress. The abnormal dilatation was found to be due to pronounced variant selection in a specific-textured austenite based on electron backscatter diffraction analysis and X-ray diffraction. A general rule of variant selection has been proposed, that the favored variants within an austenite grain usually belong to the same Bain group.
- Publication:
-
Metallurgical and Materials Transactions A
- Pub Date:
- February 2019
- DOI:
- 10.1007/s11661-018-5038-9
- Bibcode:
- 2019MMTA...50..540H