【摘要】 针对田湾核电站核岛设备冷却水系统(KAA)发生的腐蚀问题,采用电化学方法研究缓蚀剂对铜和不锈钢的腐蚀电化学行为和缓蚀机理。结果表明:甲基苯骈三氮唑(TTA)+磷酸钠复配方案在含有微量氯离子和模拟恶劣水质条件下对铜具有较为理想的缓蚀性能。同时,缓蚀剂中的磷酸钠提高了不锈钢的击穿电位,因而提高了不锈钢的抗腐蚀性能。更多还原

【Abstract】 Based on the corrosion issue of cooling water system in Tianwan nuclear power plant,the corrosion electrochemistry of inhibition on copper and stainless steel was studied using electrochemical method.Results show that inhibitor have excellent corrosion inhibition efficiency on copper in low chloride concentration solution and simulated solution.The optimum inhibitor is the compound consisting of TTA and sodium orthophosphate.At the same time,the inhibitor elevated the breakdown potential of stainless steel and contributed to the enhancement of corrosion resistance.更多还原