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Pre- and Post-deformation Microstructures of Oxide Dispersion Strengthened Ferritic Steels by R. Kasada; N. Toda; K. Yutani; H.S. Cho; H. Kishimoto; A. Kimura is a Materials Science article available to read on EtoBox.

What is Pre- and Post-deformation Microstructures of Oxide Dispersion Strengthened Ferritic Steels about?

Pre-and post-deformation microstructures and tensile properties of the newly-developed oxide dispersion strengthened (ODS) ferritic steels, K1 (Fe-19Cr-0.3W-0.3Ti-0.3Y 2 O 3 ) and K4 (Fe-19Cr-4Al-2W-0.3Ti-0.3Y 2 O 3 ) for nuclear fusion reactors and Generation IV nuclear fission systems were investigated. The nano-oxides of the K1 were cubic pyrochlore Y 2 Ti 2 O 7 , while those of K4 were mainly perovskite AlYO 3 , which was confirmed by transmission electron microscopy and X-ray diffraction (XRD) analyses. K1 was found to have much higher strength than K4 and the difference in the nano-oxides of K1 and K4 can account for this difference. Most of the extracted residues in the K1 and K4 identified by XRD consisted of M 23 C 6 carbides.

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Author

R. Kasada; N. Toda; K. Yutani; H.S. Cho; H. Kishimoto; A. Kimura

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-3115)

Published

2007

Language

EN

Field

Materials Science (Physical Sciences)