Journal ArticleDOI
High temperature fracture characteristics of a nanostructured ferritic alloy (NFA)
TLDR
In this article, the fracture toughness of the 14YWT alloy was investigated at high temperatures up to 700°C and the authors proposed methods to improve the fracture resilience of the alloy.About:
This article is published in Journal of Nuclear Materials.The article was published on 2010-12-15. It has received 51 citations till now. The article focuses on the topics: Fracture toughness & Fractography.read more
Citations
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Journal ArticleDOI
Development of next generation tempered and ODS reduced activation ferritic/martensitic steels for fusion energy applications
Steven J. Zinkle,Steven J. Zinkle,J.-L. Boutard,David T. Hoelzer,Akihiko Kimura,Rainer Lindau,G.R. Odette,Michael Rieth,Lizhen Tan,Hiroyasu Tanigawa +9 more
Journal ArticleDOI
Temperature dependence of strengthening mechanisms in the nanostructured ferritic alloy 14YWT: Part I—Mechanical and microstructural observations
TL;DR: In this article, a detailed micro-structural characterization of the nanostructured ferritic alloy 14YWT was conducted to obtain the key information on deformation mechanisms; microstructural information before and after tensile deformation, including crystallographic texture, dislocation structures, and nanoclusters, was obtained from the focused ion beam lift-out specimens using EBSD, TEM, and APT techniques.
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Mechanical Performance of Ferritic Martensitic Steels for High Dose Applications in Advanced Nuclear Reactors
TL;DR: Ferritic/martensitic (F/M) steels are considered for core applications and pressure vessels in Generation IV reactors as well as first walls and blankets for fusion reactors as discussed by the authors.
Journal ArticleDOI
Microstructural anisotropy effect on the mechanical properties of a 14Cr ODS steel
TL;DR: In this article, the effect of the anisotropy of an extruded bar of a 14Cr ODS on the tensile properties was investigated, and different fracture modes were observed depending on the orientation under study.
Journal ArticleDOI
Influence of processing on the microstructure and mechanical properties of 14YWT
TL;DR: In this paper, the authors investigated the MA conditions for producing the advanced oxide dispersion strengthened (ODS) 14YWT ferritic alloy led to significant improvements in balancing the strength, ductility and fracture toughness properties while still maintaining the salient microstructural features consisting of ultra-fine grains and high concentration of Y-, Ti- and O-enriched nanoclusters.
References
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Journal ArticleDOI
Recent Developments in Irradiation-Resistant Steels
TL;DR: In this paper, an emerging class of nanostructured ferritic alloys (NFAs) have been proposed for high-performance structural alloys with outstanding properties that are sustained under long-term service in ultrasevere environments.
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Perspective of ODS alloys application in nuclear environments
Shigeharu Ukai,Masayuki Fujiwara +1 more
TL;DR: In this article, the authors reviewed the JNC activities on ODS steel development as "nano-composite materials" and concluded that the ODS-technology development achieved in the field of fast reactors should be effectively spun off to the fusion reactor first wall and blanket structural materials to allow for safe and economical reactor design.
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On the role of alloy composition and processing parameters in nanocluster formation and dispersion strengthening in nanostuctured ferritic alloys
TL;DR: In this paper, an extensive experimental study characterizing the sequence of events that lead to the formation of a very high density of Y-Ti-O solute nanoclusters (NC) in mechanically alloyed, hot isostatically pressed ferritic stainless steels is reported.
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Alloying design of oxide dispersion strengthened ferritic steel for long life FBRs core materials
Shigeharu Ukai,M. Harada,Hirokazu Okada,M. Inoue,S. Nomura,Sakae Shikakura,Kazutaka Asabe,Toshio Nishida,Masayuki Fujiwara +8 more
TL;DR: In this paper, the α to γ transformation in ODS martensitic steel has been successfully achieved by introducing the α-to-γ transformation in 13Cr-3W ODS ferritic steels.
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Characterization of precipitates in MA/ODS ferritic alloys
TL;DR: The microstructural stability of Alloyed Alloyed, Oxide Dispersion Stiffened (MA/ODS) 14YWT ferritic alloys was investigated by atom probe tomography.