Effect of micro-particles on cavitation erosion of Ti6Al4V alloy in sulfuric acid solution |
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| Affiliation: | 1. State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China;2. School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China;1. Institute of Metals and Protection, College of Mechanics and Materials, Hohai University, 1 Xikang Road, Nanjing 210098, PR China;2. Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, 62 Wencui Road, Shenyang 110016, PR China;3. National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Hohai University, 1 Xikang Road, Nanjing 210098, PR China;4. College of Engineering, Nanjing Agricultural University, Nanjing 210031, PR China;1. “Politehnica” University of Timisoara, Department of Materials and Manufacturing Engineering, Bd. Mihai Viteazul 1, 300026 Timisoara, Romania;2. “Politehnica” University of Timisoara, Department of Mechanical Machines, Equipments and Transportation, Bd. Mihai Viteazul 1, 300026 Timisoara, Romania;1. College of Mechanics and Materials, Hohai University, 8 Focheng West Road, Nanjing 211100, PR China;2. Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, 62 Wencui Road, Shenyang 110016, PR China;3. Material Corrosion and Protection Key Laboratory of Sichuan Province, 180 Xueyuan Street, Zigong 643000, PR China |
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| Abstract: | The influences of micro-particles on ultrasonic cavitation erosion of Ti6Al4V alloy in 0.1 M H2SO4 solution were investigated using mass loss weight, scanning electron microscopy (SEM) and white light interferometer. Mass loss results revealed that the cavitation erosion damage obviously decreased with increasing particle size and mass concentration. Open circuit potential recorded during cavitation erosion shifted to positive direction with the decreased mass loss. Meanwhile, the mass loss sharply decreased with applying a positive potential during the entire ultrasonic cavitation erosion, and the relationship between the open circuit potential and the cavitation erosion resistance was discussed. |
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| Keywords: | Ultrasonic cavitation erosion Micro-particle Ti6Al4V alloy Open circuit potential |
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