Influence of flux-spectra differences on transmutation, dimensional changes and fracture of vanadium alloys

被引:14
作者
Garner, FA
Greenwood, LR
Loomis, BA
Ohnuki, S
Sekimura, N
机构
[1] ARGONNE NATL LAB, ARGONNE, IL 60439 USA
[2] HOKKAIDO UNIV, SAPPORO, HOKKAIDO 060, JAPAN
[3] UNIV TOKYO, TOKYO, JAPAN
关键词
D O I
10.1016/S0022-3115(96)00227-9
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Density and dimensional changes can arise in vanadium alloys from radiation-induced segregation and precipitation of chromium, titanium and other elements, Transmutation of vanadium to chromium can also lead to significant changes in density, either directly or indirectly, via its effect on precipitation. Furthermore, the swelling of vanadium and its alloys is known to be very sensitive to the chromium level. Since the transmutation rate to produce chromium is very sensitive to neutron spectra, an apparent flux-dependence of void swelling may occur that actually arises from the spectral differences that accompany changes in displacement rate within most reactors, Transmutation and segregation can also severely impact the fracture behavior in some alloys.
引用
收藏
页码:406 / 410
页数:5
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