Journal ArticleDOI
Microstructure characterization and strengthening mechanisms of oxide dispersion strengthened (ODS) Fe-9%Cr and Fe-14%Cr extruded bars
Ankur Chauhan,Frank Bergner,Auriane Etienne,Jarir Aktaa,Y. de Carlan,C. Heintze,Dimitri Litvinov,M. Hernández-Mayoral,E. Oñorbe,Bertrand Radiguet,A. Ulbricht +10 more
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TLDR
In this paper, the authors focused on the relationship between microstructure and yield stress for an ODS Fe-9%Cr-based transformable alloy and a ODS ferritic alloy and found that particle strengthening, dislocation forest strengthening, and Hall-Petch strengthening are the major contributions.About:
This article is published in Journal of Nuclear Materials.The article was published on 2017-11-01. It has received 62 citations till now. The article focuses on the topics: Strengthening mechanisms of materials & Electron backscatter diffraction.read more
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Metrology of small particles and solute clusters by atom probe tomography
TL;DR: In this paper, an approach that allows direct comparison of APT and small-angle (X-Ray) scattering (SA(X)S) performed on the same material is presented.
Journal ArticleDOI
Microstructure and properties of Cu-10 wt%Fe alloy produced by double melt mixed casting and multi-stage thermomechanical treatment
TL;DR: In this paper, the microstructure, mechanical property and electrical property evolutions and the strengthening mechanism during the preparation of the alloys were studied, and the results showed that there were spherical Fe phase and dendritic Fe phase in the as-cast alloy.
Journal ArticleDOI
Tensile properties and strengthening effects of 6061Al/12 wt%B4C composites reinforced with nano-Al2O3 particles
TL;DR: The tensile properties and strengthening effects of the composite were investigated in this article, which revealed that grain boundary strengthening mainly plays the most important role in the tensile strength of B4C/B4C composite.
Journal ArticleDOI
High-temperature low-cycle fatigue behavior of a 9Cr-ODS steel: Part 1 - pure fatigue, microstructure evolution and damage characteristics
TL;DR: In this article, the microstructural evolution of tempered martensitic Fe-9% OSS steel at elevated temperatures is correlated to the micro-structural development after cyclic straining, where nano-oxide particles act as persistent barriers for dislocation motion.
Journal ArticleDOI
Strengthening mechanisms of different oxide particles in 9Cr ODS steel at high temperatures
Filip Siska,Ludek Stratil,Hynek Hadraba,Stanislava Fintová,Ivo Kubena,Vít Horník,Roman Husak,Denisa Bartkova,Tomas Zalezak +8 more
TL;DR: In this paper, the influence of different oxide particles on deformation mechanisms of 9Cr ODS steels at temperatures 400-600°C was investigated by the tensile and stress-relaxation test at temperatures between 400 and 600°C.
References
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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.
Journal ArticleDOI
The dislocation distribution, flow stress, and stored energy in cold-worked polycrystalline silver
J. E. Bailey,P. B. Hirsch +1 more
TL;DR: In this paper, the distribution and densities of dislocations, determined by electron transmission microscopy, flow stress and stored energy measurements (by microcalorimetry) on cold-worked polycrystalline silver are correlated with each other.
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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.
Journal ArticleDOI
Dislocation movement through random arrays of obstacles
A. J. E. Foreman,M. J. Makin +1 more
TL;DR: In this paper, the detailed movement of a dislocation line through a random array of point obstacles in the glide plane has been examined, using a digital computer, on the basis of the line tension approximation.