49 0

Focused ion beam-induced displacive phase transformation from austenite to martensite during fabrication of quenched and partitioned steel micro-pillar

Title
Focused ion beam-induced displacive phase transformation from austenite to martensite during fabrication of quenched and partitioned steel micro-pillar
Author
김진경
Keywords
Quenched and partitioned steel; Micro-pillar compression; Retained austenite; Martensitic transformation; Focused ion beam
Issue Date
2020-01
Publisher
ELSEVIER SCIENCE SA
Citation
JOURNAL OF ALLOYS AND COMPOUNDS, v. 812, Article no. UNSP 152061
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+ 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. Published by Elsevier B.V.
URI
https://www.sciencedirect.com/science/article/pii/S0925838819333079https://repository.hanyang.ac.kr/handle/20.500.11754/121930
ISSN
0925-8388; 1873-4669
DOI
10.1016/j.jallcom.2019.152061
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE