Journal ArticleDOI
Microstructure characteristic and mechanical property of transformable 9Cr-ODS steel fabricated by spark plasma sintering
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TLDR
In this article, a transformable 9Cr oxide dispersion strengthened (ODS) steel was prepared by mechanical milling and consolidated by spark plasma sintering (SPS), and microstructural features in different fabrication stages were studied by X-ray diffraction, optical microscopy, scanning and transmission electron microscopy.About:
This article is published in Materials & Design.The article was published on 2017-10-15. It has received 51 citations till now. The article focuses on the topics: Spark plasma sintering & Microstructure.read more
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Microstructure and tensile properties of Zr-containing ODS-FeCrAl alloy fabricated by laser additive manufacturing
TL;DR: In this article, the microstructure of as-deposited and heat-treated alloys was characterized by optical microscope (OM), electron backscatter diffraction (EBSD), scanning electron microscope (SEM) and high-resolution transmission electron microscopy (HRTEM) at room temperature, and the results showed that the coarse columnar grains with preferred orientation ([001] fibre texture) are obtained after LENS deposit and are remained after post-build heat treatment.
Journal ArticleDOI
Effect of mechanical alloying and spark plasma sintering on the microstructure and mechanical properties of ODS Eurofer
TL;DR: In this article, an as-produced ODS Eurofer showed a bimodal microstructure with homogeneously dispersed nanoscale Y2O3, that is beneficial for the mechanical properties.
Journal ArticleDOI
Microstructure manipulation and strengthening mechanisms of 40Cr steel via trace TiC nanoparticles
He Zhang,Wen-Xin Wang,Chang Fang,Chuan-Lu Li,Shili Shu,Zhi-Fa Wang,Xue Han,Xue Han,Qian Zou,Feng Qiu,Qi-Chuan Jiang +10 more
TL;DR: In this article, the authors proposed an innovative method to add trace in situ TiC nanoparticles into 40Cr steel to manipulate its microstructure and mechanical properties, which exhibited better room-and high-temperature properties than those exhibited by unreinforced 40cr steel.
Journal ArticleDOI
Effects of Zr Addition on Strengthening Mechanisms of Al-Alloyed High-Cr ODS Steels
TL;DR: Results indicate that Zr addition could increase the number density but decrease the mean diameter and inter-particle spacing of oxide particles, and changes in microstructure significantly increase the yield strength (YS) and ultimate tensile strength (UTS) of ODS steels through mechanisms of grain boundary strengthening and dispersion strengthening.
Journal ArticleDOI
Processing metal powders via field assisted sintering technology (FAST): a critical review
TL;DR: In this paper, the current status of field assisted sintering technology (FAST) of structural metals from powder is critically reviewed, and there have been significant increases in the uptake of FA...
References
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G. K. Williamson,R. E. Smallman +1 more
TL;DR: In this article, two basic equations are derived for deducing the dislocation density in powdered materials from the particle size and strain breadth measured from the Debye-Schemer spectrum.
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Materials Challenges in Nuclear Energy
Steven J. Zinkle,Gary S. Was +1 more
TL;DR: In this article, the three major materials challenges for the current and next generation of water-cooled fission reactors are centered on two structural materials aging degradation issues (corrosion and stress corrosion cracking of structural materials and neutron-induced embrittlement of reactor pressure vessels), along with improved fuel system reliability and accident tolerance issues.
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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.
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General relationship between strength and hardness
Peng Zhang,S.X. Li,Zhefeng Zhang +2 more
TL;DR: Zhang, P., Li, S. X., Zhang, Z. F., this paper proposed a method for Chinese Acad Sci, Inst Met Res, Shenyang National Lab Mat Sci, Shenya 110016, Peoples R China.
Journal ArticleDOI
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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