Papers by Author: Xiao Feng Zhang

Abstract: The bonding properties between the solution polymerized styrene-butadiene rubber (SSBR) and 2A70 aluminum alloy with treatment of anodic oxidation by sulfuric acid or ethane acid were investigated. The influences of three treating methods were also studied. Two drying methods, which are vacuum method and normal pressure method affected on the properties of adhesive molecular immerging into the hole dispersing on the surface of aluminum alloy, were discussed. The results revealed that prolonging the time for anodic oxidation by both sulfuric acid and ethane acid can increase the thickness of the aluminum oxide layer.

Abstract: With the certain deposition process, the conversion coatings by four different pretreatments on LF21 were studied. The morphology and the chemical composition of the conversion coatings were examined by scanning electron microscopy (SEM). The corrosion resistance was investigated by electrochemical impedance spectroscopy (EIS) and the salt spray test. The results showed that the different pretreatments had obvious effect on the cerium conversion coatings. For the certain deposition process, the optimal pretreatment process was identified.