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Focused Ion Beam-Induced Displacive Phase Transformation From Austenite to Martensite during Fabrication of Quenched and Partitioned Steel Micro-Pillar.
- Source :
-
Journal of alloys and compounds [J Alloys Compd] 2020; Vol. 812. - Publication Year :
- 2020
-
Abstract
- We report evidence of a displacive phase transformation from retained austenite to martensite during preparation of quenched and partitioned steel micro-pillars by using a focused ion beam (FIB) technique. The BCC phase produced by the FIB damage was identified as martensite. The invariant-plane strain surface relief associated with the martensitic transformation was observed in the retained austenite phase immediately after a FIB scan of the surface with the Ga <superscript>+</superscript> ion beam. Use of a low acceleration voltage appears to lower the probability of the phase transformation, while a decrease of the acceleration voltage will result in an increase of the total milling time required to prepare a micro-pillar. This report addresses challenges related to the preparation of austenite micro-pillars by a conventional FIB technique.
Details
- Language :
- English
- ISSN :
- 0925-8388
- Volume :
- 812
- Database :
- MEDLINE
- Journal :
- Journal of alloys and compounds
- Publication Type :
- Academic Journal
- Accession number :
- 32116412
- Full Text :
- https://doi.org/10.1016/j.jallcom.2019.152061