Suppression of Radiation Buildup on Stainless Steel in a Boiling Water Reactor

Honda, Takashi; Ohashi, Kentaro; Furutani, Yasumasa; Minato, Atsushi

doi:10.5006/1.3583902

Cited by 8 publications

(2 citation statements)

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“…Table 3 lists the values of the activation energy and frequency factor together as well as other related statistical data of the corrosion reaction in the blank and Al-contained solutions. The values of r represent the obeying of the kinetic data with Arrhenius equation (5). It can be observed that the activation energy is increased by Al addition resulting in the corrosion slowing down of 316 SS.…”

Section: Resultsmentioning

confidence: 99%

“…The expensive depleted Zinc Acetate dehydrate is injected into the pressurized water reactor (PWR) primary coolant as a substitution of the natural Zn. Aluminum (Al) addition may also alleviate the corrosion of the austenitic SS while the natural Al isotopes will not result in the radiation field build-up in the boiling water reactor (BWR) primary coolant [5,6]. However, data is very few about the effects of Al addition on the corrosion behavior of the austenitic SS in the high temperature and high pressure water environment.…”

Section: Introductionmentioning

confidence: 98%

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Effects of Aluminum Addition on the Corrosion of 316 Stainless Steel in the Simulated Primary Circuit Water of PWR

Song¹,

Khalil²,

Zhang³

et al. 2017

dteees

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Abstract. The effect of Al addition on the corrosion of 316 SS exposed to simulated primary circuit of PWR has been investigated by potentiodynamic polarization, Mott-Schottky plots and corrosion kinetics. After Al addition, the weight loss of 316 SS was reduced, the semiconductor properties of the oxide film formed on the surface on 316 SS were optimized. The kinetic study indicates that corrosion process is well fitted by the pseudo-first order model. The presence of Al increases the corrosion activation energy resulting in the slowdown of the corrosion of 316 SS. Al additions may impedes the transport of the metal ion in the micropore of the 316 SS. The research may give a good solution for material corrosion in the primary circuit water of PWR.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%