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Residual ferrite formation in 12CrODS steels
| Title: | Residual ferrite formation in 12CrODS steels |
| Authors: | Ukai, S. Browse this author →KAKEN DB | | Kudo, Y. Browse this author | | Wu, X. Browse this author | | Oono, N. Browse this author | | Hayashi, S. Browse this author | | Ohtsuka, S. Browse this author | | Kaito, T. Browse this author |
| Keywords: | ODS | | 12Cr | | Martensite | | Full-ferrite | | Residual ferrite | | α/γ phase transformation | | Pinning force | | Chemical driving force | | Fusion materials |
| Issue Date: | Dec-2014 |
| Publisher: | Elsevier |
| Journal Title: | Journal of nuclear materials |
| Volume: | 455 |
| Issue: | 1-3 |
| Start Page: | 700 |
| End Page: | 703 |
| Publisher DOI: | 10.1016/j.jnucmat.2014.09.038 |
| Abstract: | Increasing Cr content from 9 to 12 mass% leads to superior corrosion and high-temperature oxidation resistances, and usually changes microstructure from martensite to a ferrite. To make transformable martensitic type of 12CrODS steels that have superior processing capability by using alpha/gamma phase transformation, alloy design was conducted through varying nickel content. The structure of 12CrODS steels was successfully modified from full ferrite to a transformable martensite-base matrix containing ferrite. This ferrite consists of both equilibrium ferrite and a metastable residual ferrite. It was shown that the fraction of the equilibrium ferrite is predictable by computed phase diagram and formation of the residual ferrite was successfully evaluated through pinning of alpha/gamma interfacial boundaries by oxide particles. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/58009 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 鵜飼 重治
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