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首页> 外文期刊>Materiali in Tehnologije >CORROSION BEHAVIOR OF 304L STAINLESS STEEL IN A B-Li COOLANT FOR A NUCLEAR POWER PLANT
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CORROSION BEHAVIOR OF 304L STAINLESS STEEL IN A B-Li COOLANT FOR A NUCLEAR POWER PLANT

机译：核电站B-Li冷却剂中304L不锈钢的腐蚀行为

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摘要

The corrosion behavior of 304L stainless steel (SS) in B/Li solutions with different concentrations was studied by means of X-ray diffraction (XRD), scanning electron microscope (SEM), potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) measurement. The results showed that the oxide film formed at high temperature and a high pressure water is mainly composed of magnetite and the oxide film formed in a 1000 mg/L B and 2.2 mg/L Li solution is thicker than that in a 2000 mg/L B and 3.5 mg/L Li solution. The outer surface oxide particles' size and inner film uniformity is affected by the B/Li concentration. The pitting potential and the modulus of impedance of the 304L in 1000 mg/L B and 2.2 mg/L Li solutions were higher than the 2000 mg/L B and 3.5 mg/L Li solutions. The solution of 1000 mg/L B and 2.2 mg/L Li is beneficial for the corrosion resistance, because of forming a stable oxide film on the 304L surface.
机译：通过X射线衍射（XRD），扫描电子显微镜（SEM），电位极化和电化学阻抗光谱（EIS）测量，研究了304L不锈钢（SS）在具有不同浓度的B / Li溶液中具有不同浓度的B / Li溶液中的腐蚀行为。 结果表明，在高温和高压水中形成的氧化膜主要由磁铁矿组成，并在1000mg / LB和2.2mg / L Li溶液中形成的氧化膜比2000mg / LB中的氧化膜厚 3.5 mg / l li溶液。 外表面氧化物颗粒的尺寸和内膜均匀性受到B / Li浓度的影响。 304L在1000mg / L B和2.2mg / L Li溶液中的蚀电位和阻抗模量高于2000mg / L B和3.5mg / L Li溶液。 1000mg / L B和2.2mg / L Li的溶液有利于耐腐蚀性，因为在304L表面上形成稳定的氧化膜。

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