Nanometer scale precipitation in ferritic MA/ODS alloy MA957

M. K. Miller; D. T. Hoelzer; E. A. Kenik; K. F. Russell

doi:10.1016/j.jnucmat.2004.04.085

Nanometer scale precipitation in ferritic MA/ODS alloy MA957

M. K. Miller, D. T. Hoelzer, E. A. Kenik, K. F. Russell

Alloy Behavior & Design

Research output: Contribution to journal › Conference article › peer-review

201 Scopus citations

Abstract

The microstructure of a commercial mechanically-alloyed oxide dispersion strengthened MA957 alloy has been characterized in the as-received condition and after annealing for up to 24 h at 1300 °C (∼0.85 T_m) by atom probe tomography and electron microscopy. Atom probe tomography revealed a high number density of ultrafine 2-nm-diameter Ti-, Y- and O-enriched particles in the ferrite matrix in the as-received condition. The size increased and the number density of these particles decreased during the annealing treatment for 1 and 24 h at 1300 °C. Some coarser (∼10 nm) Ti-, Y- and O-enriched precipitates were also observed at the grain boundaries. No significant grain growth or recrystallization was observed during the high temperature annealing treatment. Published by Elsevier B.V.

Original language	English
Pages (from-to)	338-341
Number of pages	4
Journal	Journal of Nuclear Materials
Volume	329-333
Issue number	1-3 PART A
DOIs	https://doi.org/10.1016/j.jnucmat.2004.04.085
State	Published - Aug 1 2004
Event	Proceedings of the 11th Conference on Fusion Research - Kyoto, Japan Duration: Dec 7 2003 → Dec 12 2003

Funding

Research at the Oak Ridge National Laboratory SHaRE Collaborative Research Center was sponsored by the Division of Materials Sciences and Engineering and the Office of Nuclear Energy, Science and Technology (I-NERI 2001-007-F), US Department of Energy, under contract DE-AC05-00OR22725 with UT-Battelle, LLC.

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10.1016/j.jnucmat.2004.04.085

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title = "Nanometer scale precipitation in ferritic MA/ODS alloy MA957",

abstract = "The microstructure of a commercial mechanically-alloyed oxide dispersion strengthened MA957 alloy has been characterized in the as-received condition and after annealing for up to 24 h at 1300 °C (∼0.85 Tm) by atom probe tomography and electron microscopy. Atom probe tomography revealed a high number density of ultrafine 2-nm-diameter Ti-, Y- and O-enriched particles in the ferrite matrix in the as-received condition. The size increased and the number density of these particles decreased during the annealing treatment for 1 and 24 h at 1300 °C. Some coarser (∼10 nm) Ti-, Y- and O-enriched precipitates were also observed at the grain boundaries. No significant grain growth or recrystallization was observed during the high temperature annealing treatment. Published by Elsevier B.V.",

author = "Miller, {M. K.} and Hoelzer, {D. T.} and Kenik, {E. A.} and Russell, {K. F.}",

year = "2004",

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doi = "10.1016/j.jnucmat.2004.04.085",

language = "English",

volume = "329-333",

pages = "338--341",

journal = "Journal of Nuclear Materials",

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note = "Proceedings of the 11th Conference on Fusion Research ; Conference date: 07-12-2003 Through 12-12-2003",

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TY - JOUR

T1 - Nanometer scale precipitation in ferritic MA/ODS alloy MA957

AU - Miller, M. K.

AU - Hoelzer, D. T.

AU - Kenik, E. A.

AU - Russell, K. F.

PY - 2004/8/1

Y1 - 2004/8/1

N2 - The microstructure of a commercial mechanically-alloyed oxide dispersion strengthened MA957 alloy has been characterized in the as-received condition and after annealing for up to 24 h at 1300 °C (∼0.85 Tm) by atom probe tomography and electron microscopy. Atom probe tomography revealed a high number density of ultrafine 2-nm-diameter Ti-, Y- and O-enriched particles in the ferrite matrix in the as-received condition. The size increased and the number density of these particles decreased during the annealing treatment for 1 and 24 h at 1300 °C. Some coarser (∼10 nm) Ti-, Y- and O-enriched precipitates were also observed at the grain boundaries. No significant grain growth or recrystallization was observed during the high temperature annealing treatment. Published by Elsevier B.V.

AB - The microstructure of a commercial mechanically-alloyed oxide dispersion strengthened MA957 alloy has been characterized in the as-received condition and after annealing for up to 24 h at 1300 °C (∼0.85 Tm) by atom probe tomography and electron microscopy. Atom probe tomography revealed a high number density of ultrafine 2-nm-diameter Ti-, Y- and O-enriched particles in the ferrite matrix in the as-received condition. The size increased and the number density of these particles decreased during the annealing treatment for 1 and 24 h at 1300 °C. Some coarser (∼10 nm) Ti-, Y- and O-enriched precipitates were also observed at the grain boundaries. No significant grain growth or recrystallization was observed during the high temperature annealing treatment. Published by Elsevier B.V.

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DO - 10.1016/j.jnucmat.2004.04.085

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AN - SCOPUS:3342986582

SN - 0022-3115

VL - 329-333

SP - 338

EP - 341

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - 1-3 PART A

T2 - Proceedings of the 11th Conference on Fusion Research

Y2 - 7 December 2003 through 12 December 2003

ER -

Nanometer scale precipitation in ferritic MA/ODS alloy MA957

Abstract

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