Acoustic emission during pitting corrosion of 304 stainless steel
Acoustic emission during pitting corrosion of 304 stainless steel
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DOI：
10.1016/j.corsci.2011.01.030
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发表时间：
2011-04
影响因子：
8.3
通讯作者：
Jian Xu;Xinqiang Wu;E. Han
中科院分区：
文献类型：
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作者：
Jian Xu;Xinqiang Wu;E. Han
研究了 304 不锈钢 (304 SS) 在不同 pH 值和 Cl−浓度的 H2SO4 溶液中点蚀时的声发射 (AE)。所有解决方案中均检测到两种类型的 AE 信号。每种类型的信号都通过 AE 参数（上升时间、计数、持续时间和幅度）和波形仔细表征。据信，凹坑内的氢气泡演化是AE的来源。
Acoustic emission (AE) during pitting corrosion of 304 stainless steel (304 SS) in H2SO4solutions with different pH values and Cl−concentrations was studied. Two types of AE signals are detected in all solutions. Each type of signals is characterized by AE parameters (rise time, counts number, duration and amplitude) and waveform carefully. It is believed that the hydrogen bubbles evolution inside the pits is the AE source.