Use of color-change indicators to quantify passive films on the stainless steel valves of nuclear power plants

Cheng, Cong Qian; Yang, Shu Kai; Zhao, Jie

doi:10.1016/j.nucengdes.2015.11.028

Cited by 3 publications

(1 citation statement)

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“…For this procedure, the resting time was 300 s, the measured potential range was −0.6 to 1.2 V, and the scanning frequency Hz. [20] All of the electrochemistry experiments were repeated three times to ensure the accuracy of the sample polarization curves and AC impedance curves. The discoloration time in the range of 6.3-11.2 J/cm 2 is longer, which is greater than that of the original sample.…”

Section: Methodsmentioning

confidence: 99%

Mechanism of surface corrosion resistance of 304 stainless steel processed by nanosecond laser pulses

Yang

Wang

Xiong

et al. 2022

Materials & Corrosion

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A nanosecond pulsed fiber laser was used to modify the surface of 304 stainless steel. The compactness, microstructure, chemical composition, and corrosion resistance of the stainless steel passive film were observed by the blue dot detection method, scanning electron microscopy, x-ray photoelectron spectroscopy, and electrochemical methods. The influence of different laser fluences on the stability and corrosion resistance of the stainless steel passive film was studied. The results show that with increasing laser fluence, the discoloration reaction time of the stainless steel surface increases first and then decreases, while the surface roughness decreases first and then increases.

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Section: Methodsmentioning

confidence: 99%