Effect of ultrasonic vibration on the dechromisation corrosion of a CuCr alloy in HCl solution

稀有金属（英文版）, 2007, 26(4): 398-402.

^1, , ^2, , ^3, , ^4,

1.Department of Applied Technology, Daqing Petroleum Institute, Daqing 163318, China

2.Logistics Groups Company, Yanshan University, Qinhuangdao 066004, China

3.Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China

4.Department of Applied Technology, Daqing Petroleum Institute, Daqing 163318, China

基金项目: the Scientific Research Fund of Heilongjiang Provincial Education Department,China(11511020)

Effect of ultrasonic vibration on the dechromisation corrosion of a CuCr alloy in HCl solution

Keywords： CuCr alloy

The effect of ultrasonic vibration on the dechromisation corrosion of a CuCr alloy in HCl solution was studied and the corrosion mechanisms were analyzed. It is found that ultrasonic vibration reduces the dechromisation incubation time, accelerates the dechromisation corrosion rate, decreases the temperature and concentration of HCl solution, and when the dechromisation occurs it seriously weakens the microstructure of dechromisation layer. It is concluded that ultrasonic vibration can accelerate destruction of the passivation film on the Cr surface and increase the activities of Cl- and Cr.

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Effect of ultrasonic vibration on the dechromisation corrosion of a CuCr alloy in HCl solution

参考文献