Recent progress on development of vanadium alloys for fusion

Kurtz, Richard J.; Abe, Katsunori; Чернов, В. М.; Hoelzer, David T.; Matsui, Hideki; Muroga, T.; Odette, G.R.

doi:10.1016/j.jnucmat.2004.04.299

Cited by 147 publications

(68 citation statements)

References 35 publications

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“…The past experimental evaluation of the helium effects varied from weak to very strong. 1) Since the technique to generate helium and displacement damage simultaneously is limited, recent progress in experimental evaluation of the helium effect is also limited. Clearly a 14 MeV neutron source is essential to evaluate the helium effects in fusion conditions.…”

Section: Radiation Effectsmentioning

confidence: 99%

“…1,2) However, the requirements to the vanadium alloys depend on the blanket design. Generally larger windows for operation temperature of structural materials allow us to design compact blanket systems with higher efficiency.…”

Section: Development Of Advanced Alloysmentioning

confidence: 99%

“…1,2) They have low induced activation characteristics, high temperature strength and high thermal stress factors. Recent researches have successfully resolved many of the critical issues and enhanced the feasibility of vanadium alloys as fusion blanket structural materials.…”

Section: Introductionmentioning

confidence: 99%

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Vanadium Alloys for Fusion Blanket Applications

Muroga

2005

Mater. Trans.

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Vanadium alloys are attractive candidate structural materials for breeding blanket of fusion reactors because of their low activation properties and high temperature strength. Studies on various blanket designs are being carried out using vanadium alloys as structural materials and liquid lithium or molten salt Flibe as breeding and coolant materials. Recently significant progress in fabrication technology has been made for vanadium alloys through a program of producing large ingots of high purity V-4Cr-4Ti (NIFS-HEATs). Fundamental understandings on the effects of interstitial impurities (C, N, O) on mechanical properties, radiation effects on microstructure and mechanical properties, corrosion and compatibility in various environments were enhanced. New promising candidates were identified for the MHD insulator coating. Among the remaining critical issues are the effects of transmutant helium on mechanical properties and development of long life MHD coating. Development of vanadium alloys will be carried out in coordination with IFMIF and ITER-TBM schedules as essential tools for verification of their performance in fusion blanket environments.

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Section: Radiation Effectsmentioning

confidence: 99%

Section: Development Of Advanced Alloysmentioning

confidence: 99%

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Vanadium Alloys for Fusion Blanket Applications

Muroga

2005

Mater. Trans.

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“…Together with the blanket development, material development is being performed on a prime candidate material that is RAFM steel, and on silicon carbide composite (SiCf/SiC) [9][10][11], vanadium alloy [12][13][14] and ODS ferritic steel [15][16][17] as next stage structural materials for advanced blankets. The RAFM steels were chosen as the structural material of test blanket modules (TBM) of the ITER by all the participating parties.…”

Section: Introductionmentioning

confidence: 99%

Oxide Dispersion Strengthened Steels for Advanced Blanket Systems

Kimura

Wang

et al. 2016

Plasma and Fusion Research

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Oxide dispersion strengthened (ODS) steels with nano-scaled oxide particles in high density in ferrite/martensite matrix and on grain boundaries of ultra-fine grains have excellent properties as structural material for fusion blankets, while some issues of fabrication processes are still remaining to be solved. In this overview, material properties of recently developed ODS steels are introduced in comparison to ferritic/martensitic (F/M) steels: 1) mechanical properties, 2) corrosion behavior and 3) radiation tolerance in ODS steels, which are outstandingly superior to the F/M steels. Coupling use of the ODS and F/M steels is effective to expand the design margin of fusion blankets. R&D of dissimilar joining of FM/ODS steels is indispensable.

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“…3 Much of the past research focused on solid-solution-strengthened Va alloys containing 4-5% Cr and 4-10% Ti; however, these alloys showed low-temperature embrittlement after neutron irradiation and poor oxidation resistance. 4 Krü ger and co-workers investigate an alternative V-based system, V-Si-B alloys, which are strengthened with silicide phases and contain boron to improve the oxidation resistance at elevated temperatures. Their article focuses on the microstructure variations and creep properties above 900°C in as-processed and heattreated conditions for V-Si-B alloys containing 9-12 at.% silicon and 13-25 at.% boron.…”

mentioning

confidence: 99%

Advances in High-Temperature Alloys

Sudbrack

2016

JOM

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Recent progress on development of vanadium alloys for fusion

Cited by 147 publications

References 35 publications

Vanadium Alloys for Fusion Blanket Applications

Vanadium Alloys for Fusion Blanket Applications

Oxide Dispersion Strengthened Steels for Advanced Blanket Systems

Advances in High-Temperature Alloys

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