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首页> 外文期刊>Corrosion: The Journal of Science and Engineering >Effects of Neutron Irradiation on Transpassive Corrosion Behavior of Austenitic Stainless Steels
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Effects of Neutron Irradiation on Transpassive Corrosion Behavior of Austenitic Stainless Steels

机译：Effects of Neutron Irradiation on Transpassive Corrosion Behavior of Austenitic Stainless Steels

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摘要

Irradiated and unirradiated austenitic stainless steels (SS) d to a transpassive potential (1,050 m VSCE) in a sulfuric acid (H_2SO_4) solution, and the corrosion responses I Applicability of the transpassive technique to f radiation-induced segregation (RIS) of impurities was considered. The charge density during the c transpassive test and the corrosion morphology after were functions of both the material irradiation. The charge density of the chemistry materials was correlated successfully with the j level, as defined in terms of the parameter +(wt percent) phosphorus x 10). The charge density increased above an impurity level parameter of 0.5, which corresponded to the region where intergranular attack (IGA) become visible. The change in charge density after newtron irradiation also was a function of the impurity level, suited in a considerable increase in charge grain-boundary attack (GBA) for commercial purity 304 SS (UNS S30400). Furthermore, small of preferential dissolution were observed matrix. It was postulated that the small disso-i the matrix may have been faulted dislocation ire segregated with silicon or phosphorus, loops that in the potentiostatic transpassive test an indicator of the degree of RIS of impurities.

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