流速对船舶海底阀箱5083-H116铝合金电化学行为的影响

摘要

Electrochemical behavior of 5083-H116 Al alloy with flow velocity of seachest material for Al ship was evaluated.To examine the electrochemical characteristics of flow velocity and its effects on the performance of the alloy,experiments were conducted at four flow velocity variables using static state with an agitator.An ultrasonic vibration generator using piezoelectric effect was used in cavitation test according to the requirements of in ASTM-G32.The results show that the corrosion current density and damage were increased by applying the flow velocity compared to static state.Therefore,it is determined that the case of applying flow velocity is weaker to the corrosion.%研究流速对铝制船舶的海底阀箱材料5083-H116铝合金电化学行为的影响.为检测电化学特性和流速对其性能的影响,实验在静态和通过搅拌仪产生的4个不同流速下进行,并使用超声波振荡器利用压电效应进行空化实验.结果表明,合金在施加流速后其腐蚀电流密度和损害程度较在静态环境下增加,更易于发生腐蚀.