考虑超声波的衰减，用量热法测定了几种不同频率和不同功率的超声波在液体中的实际声功率．在有无超声波的条件下，用重量法实验测定了锌在盐酸溶液中的腐蚀速率; 并通过改变超声波的频率和功率参数，研究了腐蚀速率与超声波频率和功率的关系．用扫描电镜观察了锌片的腐蚀形貌，分析了超声波加速锌片腐蚀的原因．结果表明: 超声波能明显加速盐酸溶液对锌的腐蚀，超声空化效应是加速锌腐蚀的重要原因; 在同样功率下，低频超声由于较易诱导空化而使锌在酸中的腐蚀速率较大; 在频率一定功率不太大时，腐蚀速率随功率增大而增大．

In the consideration of the attenuation of ultrasonic,the actual sound power of several ultrasonics with different frequencies and power in the liquid was determined via the calorimetric method. Under the conditions with and without ultrasonic,the corrosion rates of zinc in the hydrochloric acid solution were determined by means of the gravimetric method. Moreover,by changing the ultrasonic frequency and power parameters,the relationships between the corrosion rate and these parameters were investigated. In addition,the morphology of zinc corrosion was observed by means of scanning electron microscopy,with the causes for the acceleration of zinc corrosion being also analyzed. The results show that( 1) the corrosion of zinc in the hydrochloric acid solution is significantly accelerated by ultrasonic,and ultrasonic cavitation plays an important role in the accelerated process; ( 2) at the same power,the low-frequency ultrasonic induces the cavitation more easily,thus making the corrosion rate higher; and( 3) when the frequency is constant and the power is not too high,the corrosion rate increases with the power increase.