Crevice Corrosion Properties of PWR Structure Materials Under Reductive Decontamination Conditions
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چکیده
منابع مشابه
Effect of Alloying Elements on Crevice Corrosion Inhibition of Nickel- Chromium-Molybdenum-Tungsten Alloys under Aggressive Conditions: An Electrochemical Study
The effects of Cr, Mo and W on the crevice corrosion of a number of commercial Ni-Cr-Mo (W) alloys in 1.0 mol/L NaCl were studied using the potentiodynamic-galvanostaticpotentiodynamic technique to measure film breakdown and repassivation potentials as well as protection temperatures. As expected, Cr is the key element determining resistance to crevice initiation but a substantial Mo alloy cont...
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Microfabrication methods have been used to construct crevice formers of rigorously controlled gap and length. These have been used to study the IR-controlled crevice corrosion of Ni200 in 0.5 M H2SO4 to determine the effect of crevice gap ~G! on the position of the accelerated attack (xcrit) within the crevice. The experimental results were then compared to the results of computational studies....
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Crevice corrosion material loss is often most severe at intermediate distances into the crevice. This intermediate attack can be rationalized using the ohmic drop model of Pickering if and only if the material in question exhibits active/passive behavior in the crevice environment. Conventional theories that ascribe control of crevice corrosion to chemical changes exclusively cannot rationalize...
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[This corrects the article on p. 3270 in vol. 59.].
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ژورنال
عنوان ژورنال: Journal of the Nuclear Fuel Cycle and Waste Technology
سال: 2014
ISSN: 1738-1894
DOI: 10.7733/jnfcwt.2014.12.3.199