Journal
SCRIPTA MATERIALIA
Volume 69, Issue 4, Pages 307-310Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2013.05.003
Keywords
Compression test; Focused ion beam (FIB); Iron alloys; Multilayers; Plastic deformation
Categories
Funding
- JSPS KAKENHI [24246113, 25709066]
- Elements Strategy Initiative for Structural Materials (ESISM) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan
- Advanced Low Carbon Technology Research and Development Program (ALCA) from the Japan Science and Technology Agency (JST)
- ISIJ
- Grants for Technical Research from JFE 21st Century Foundation
- Grants-in-Aid for Scientific Research [25630304, 25709066, 23656451] Funding Source: KAKEN
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Micropillar compression tests on each of the five intermetallic phases of the Fe-Zn system, which constitute the coating of galvannealed steels, have revealed that the Gamma phase formed in direct contact with the steel substrate and the zeta phase formed on the outermost surface are ductile, sandwiching the other three brittle phases (Gamma(1), delta(1k) and delta(1p)). Compression deformability of these ductile phases is considered to mitigate the coating failure through sustaining ruptured fragments of the brittle phases during the forming process. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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