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2008, Volume 2, Issue 4

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Frontiers in Energy >> 2008, Volume 2, Issue 4 doi: 10.1007/s11708-008-0102-6

Computation model for corrosion resistance of nanocrystalline zircaloy-4

1.School of Materials Science & Engineering, Chongqing University; 2.School of Physical Science and Engineering Technology, Guangxi University; 3.National Key Laboratory for Nuclear Fuels and Materials, Nuclear Power Institute of China (NPIC)

Available online: 2008-12-05
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Abstract

A computation model of the corrosion rate versus grain size of nanocrystalline zircaloy-4 was presented. The influence of the second phase on the conductivity of alloy was considered. By this model, the corrosion rate of nanocrystalline zircaloy-4 at different temperature was calculated. The results show that the corrosion rate constant and weight gain of nanocrystalline zircaloy-4 decrease with the decrease of grain size, and that the corrosion weight gain of nanocrystalline zircaloy-4 is less than that of zircaloy-4 of coarse grain. The computational result is coincident with the experimental result.

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