Study on Mechanical Performance of CoW/ZrO2 Composite Film Prepared by Pulse Electrodepostion
The pulse plating technology was used to prepare CoW/ZrO2 composite film on the surface of Q235B steel.Influence rule of ZrO2 nano particles addition amount in plating solution on the quality of coating and friction and wear property were researched.Some CoW/ZrO2 composit plating were gained by changing additive amount of ZrO2 nano particles under a certain conditions using single factor experiment,the surface morphology of CoW/ZrO2 composite film was observed by scanning electron microscope(SU5000),the microstructure of the CoW/ZrO2 composite film was examined by X-ray diffraction,Thickness and surface roughness of CoW/ZrO2 composite film were tested by surface profiler P7,quality of the coating and its change rule of the variation with the addition amount of ZrO2 nano particles in the plating solution was investigated and the tribological properties of the coatings were tested.There is best effect of additive amount of ZrO2 nano particles in the plating solution on the quality of coating,there is a minimum wear rate when the additive amount of ZrO2 nano particles changes within limit.The wear resistance and surface hardness of the composite film generated from the plating bath with 9 g/L ZrO2 are the best during the preparation of COW/ZrO2 composite plating by the pulse plating technology.
pulse plating technologyCoW/ZrO2composite filmfriction and wear properties
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