Compatibility between Be–V Alloy and F82H steel

Beryllium alloys such as Be–Ti and Be–V are promising candidates for advanced neutron multipliers from viewpoints of high melting point, high beryllium content, low radio-activation, and good chemical stability. In this study, the compatibility between structural material F82H steel and Be–7 at.%V that includes αBe phase was investigated. After annealing, reaction products at the surface of F82H steel and Be–7 at.%V specimen were analyzed by X-ray diffraction analysis and EPMA/SEM analysis. The thickness and rate constant of reaction layer at the surface of F82H steel were evaluated and good compatibility between Be–V and F82H was clearly observed.