APPLICATION OF VANADIUM AND VANADIUM ALLOYS TO A FUSION-REACTOR BLANKET

被引:12
作者
BETHIN, J
TOBIN, A
机构
[1] Grumman Aerosapce Corp, Bethpage,, NY, USA, Grumman Aerosapce Corp, Bethpage, NY, USA
关键词
HELIUM - NUCLEAR REACTORS; FUSION - Materials - OXYGEN - RADIATION DAMAGE - VANADIUM CHROMIUM TITANIUM ALLOYS - Physical Properties;
D O I
10.1016/0022-3115(84)90714-1
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Vanadium and vanadium alloys are of interest in fusion reactor blanket applications due to their low induced radioactivity and outstanding elevated temperature mechanical properties during neutron irradiation. The major limitation to the use of vanadium is its sensitivity to oxygen impurities in the blanket environment, leading to oxygen embrittlement. A quantitative analysis was performed of the interaction of gaseous impurities in a helium coolant with vanadium and the V-15Cr-5Ti alloy under conditions expected in a fusion reactor blanket. It was shown that the use of unalloyed V would impose severe restrictions on the helium gas cleanup system due to excessive oxygen buildup and embrittlement of the metal. However, internal oxidation effects and the possibly lower terminal oxygen solubility in the alloy would impose much less severe cleanup constraints. It is suggested that V-15Cr-5Ti is a promising candidate for certain blanket applications and deserves further consideration.
引用
收藏
页码:864 / 868
页数:5
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