Study on Corrosion Behavior of Aluminum Alloy Surface by Deteriorated Cutting Fluid
In response to the surface corrosion problem of aluminum alloy products in the fields of aerospace delivery and tactical weapons,the corrosion behavior of aluminum alloy in cutting fluid stock solution and degraded solution is com-pared,with a focus on the influence of microbial growth in cutting fluid on corrosion behavior.Based on the results,research is conducted on the sterilization technology of degraded cutting fluid,the degree of recovery of cutting fluid performance by four degraded cutting fluid sterilization treatment methods:ultraviolet (UV),ozone (O3),UV/O2,and UV/O3 is com-pared.By using tools such as energy dispersive spectrometer (EDS),fluorescence microscopy,and surface profiler,as well as electrochemical methods,the corrosion behavior of aluminum alloy surfaces is compared by observing the adhesion and corrosion of microorganisms on the surface.The results indicate that the reason for surface corrosion of aluminum alloy in degraded cutting fluid is the proliferation of bacteria and microorganisms.Through comparison,it is found that the corrosion rate of aluminum alloy in samples containing microorganisms in the cutting fluid significantly increases.Among the four sterilization treatment methods of degraded cutting fluid,UV/O2 treatment have the best effect,and the surface of aluminum alloy is basically free of corrosion after 24 hours in the cutting wastewater after 3 hours of treatment.
aluminum alloy corrosiondeterioration of cutting fluidmicrobial reproductioncutting fluid sterilization
万方数据
维普
