Structure of Oxide Nanoparticles in Fe-16Cr MA/ODS Ferritic Steel

Hsiung, L; Fluss, M; Kimura, A

doi:10.1016/j.matlet.2010.05.039

Structure of Oxide Nanoparticles in Fe-16Cr MA/ODS Ferritic Steel

Journal Article · Tue Apr 06 04:00:00 EDT 2010 · Materials Letters

DOI:https://doi.org/10.1016/j.matlet.2010.05.039· OSTI ID:1009225

Hsiung, L; Fluss, M; Kimura, A

Oxide nanoparticles in Fe-16Cr ODS ferritic steel fabricated by mechanical alloying (MA) method have been examined using high-resolution transmission electron microscopy (HRTEM) techniques. A partial crystallization of oxide nanoparticles was frequently observed in as-fabricated ODS steel. The crystal structure of crystalline oxide particles is identified to be mainly Y{sub 4}Al{sub 2}O{sub 9} (YAM) with a monoclinic structure. Large nanoparticles with a diameter larger than 20 nm tend to be incoherent and have a nearly spherical shape, whereas small nanoparticles with a diameter smaller than 10 nm tend to be coherent or semi-coherent and have faceted boundaries. The oxide nanoparticles become fully crystallized after prolonged annealing at 900 C. These results lead us to propose a three-stage formation mechanism of oxide nanoparticles in MA/ODS steels.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA

Sponsoring Organization:: USDOE

DOE Contract Number:: W-7405-ENG-48

OSTI ID:: 1009225

Report Number(s):: LLNL-JRNL-427350

Journal Information:: Materials Letters, Journal Name: Materials Letters Journal Issue: 16 Vol. 64; ISSN MLETDJ; ISSN 0167-577X

Country of Publication:: United States

Language:: English

References (14)

Core/shell structures of oxygen-rich nanofeatures in oxide-dispersion strengthened Fe–Cr alloys Marquis, Emmanuelle A. Applied Physics Letters, Vol. 93, Issue 18, Article No. 181904 https://doi.org/10.1063/1.3000965	journal	November 2008
A Comparison of Three Sets of Diffraction Data for Al2Y4O9: X-Ray Synchrotron Powder Data, X-Ray Single Crystal Data from Ag Kalpha Radiation, and Neutron Single Crystal Data from 1.01 Å Neutrons. Christensen, A. Nørlund; Hazell, R. G.; Stålhandske, Claes Acta Chemica Scandinavica, Vol. 45 https://doi.org/10.3891/acta.chem.scand.45-0226	journal	January 1991
The development of structural materials for fusion reactors Ehrlich, Karl Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, Vol. 357, Issue 1752 https://doi.org/10.1098/rsta.1999.0343	journal	March 1999
Precipitation behavior of oxide particles in mechanically alloyed powder of oxide-dispersion-strengthened steel Sakasegawa, Hideo; Tamura, Manabu; Ohtsuka, Satoshi Journal of Alloys and Compounds, Vol. 452, Issue 1 https://doi.org/10.1016/j.jallcom.2007.01.177	journal	March 2008
Mechanical dispersion of Y2O3 nanoparticles in steel EUROFER 97: process and optimisation de Castro, V.; Leguey, T.; Monge, M. A. Journal of Nuclear Materials, Vol. 322, Issue 2-3 https://doi.org/10.1016/S0022-3115(03)00330-1	journal	November 2003
Development of Oxide Dispersion Strengthened Ferritic Steels for FBR Core Application, (I). Improvement of Mechanical Properties by Recrystallization Processing. Ukai, Shigeharu; Nishida, Toshio; Okada, Hirokazu Journal of Nuclear Science and Technology, Vol. 34, Issue 3 https://doi.org/10.3327/jnst.34.256	journal	January 1997
New insights into the structure of ODS particles in the ODS-Eurofer alloy Klimenkov, M.; Lindau, R.; Möslang, A. Journal of Nuclear Materials, Vol. 386-388 https://doi.org/10.1016/j.jnucmat.2008.12.174	journal	April 2009
Mechanical alloying and milling Suryanarayana, C. Progress in Materials Science, Vol. 46, Issue 1-2, p. 1-184 https://doi.org/10.1016/S0079-6425(99)00010-9	journal	January 2001
Evaluation of Helium effects on swelling behavior of oxide dispersion strengthened ferritic steels under ion irradiation Yutani, K.; Kishimoto, H.; Kasada, R. Journal of Nuclear Materials, Vol. 367-370 https://doi.org/10.1016/j.jnucmat.2007.03.016	journal	August 2007
Nonscalability and nontransferability in the electronic properties of the Y-Al-O system Ching, W. Y.; Xu, Yong-Nian Physical Review B, Vol. 59, Issue 20 https://doi.org/10.1103/PhysRevB.59.12815	journal	May 1999
Dispersion behaviour of oxide particles in mechanically alloyed ODS steel Okuda, T.; Fujiwara, M. Journal of Materials Science Letters, Vol. 14, Issue 22 https://doi.org/10.1007/BF00455428	journal	January 1995
Perspective of ODS alloys application in nuclear environments Ukai, Shigeharu; Fujiwara, Masayuki Journal of Nuclear Materials, Vol. 307-311, p. 749-757 https://doi.org/10.1016/S0022-3115(02)01043-7	journal	December 2002
Pre- and post-deformation microstructures of oxide dispersion strengthened ferritic steels Kasada, R.; Toda, N.; Yutani, K. Journal of Nuclear Materials, Vol. 367-370 https://doi.org/10.1016/j.jnucmat.2007.03.141	journal	August 2007
Ultra Grain Refining and Decomposition of Oxide during Super-heavy Deformation in Oxide Dispersion Ferritic Stainless Steel Powder. Kimura, Yuuji; Takaki, Setsuo; Suejima, Shinichi ISIJ International, Vol. 39, Issue 2 https://doi.org/10.2355/isijinternational.39.176	journal	January 1999

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36 MATERIALS SCIENCE
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TRANSMISSION ELECTRON MICROSCOPY

Structure of Oxide Nanoparticles in Fe-16Cr MA/ODS Ferritic Steel

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