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首页> 外文期刊>Applied Surface Science >Surface mechanical behaviour of composite Ni-P-fly ash/zincate coated aluminium alloy
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Surface mechanical behaviour of composite Ni-P-fly ash/zincate coated aluminium alloy

机译：Ni-P-粉煤灰/锌酸盐复合铝合金的表面力学性能

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摘要

Ni-P-fly ash coatings were produced on zincate coated 5083 wrought aluminium alloy substrates with the aid of an electroless deposition technique. Structural and chemical characterization of the produced coatings was performed with the aid of X-ray diffraction (XRD), scanning electron microscopy (SEM) and electron dispersive X-ray analysis (EDS) techniques. The Ni-P-fly ash coating was found to consist of an amorphous Ni-P matrix with dispersed fly ash particles. The wear resistance of the Ni-P-fly ash coating on zincate treated aluminium alloy was observed to be higher than that of the bare aluminium alloy, when sliding against a stainless steel counterface. In addition, the adhesion between the Ni-P-fly ash/ zincate coating and the aluminium alloy substrate was also studied with a scratch testing apparatus. The adhesion strength of Ni-P-fly ash/zincate coating on the aluminium alloy substrate was observed to be higher in comparison to the Ni-P/zincate coating on the same aluminium alloy.
机译：借助化学沉积技术，在镀锌的5083变形铝合金基材上制备了Ni-P粉煤灰涂层。借助X射线衍射（XRD），扫描电子显微镜（SEM）和电子弥散X射线分析（EDS）技术对生成的涂层进行结构和化学表征。发现Ni-P-飞灰涂层由具有分散的飞灰颗粒的无定形Ni-P基体组成。当在不锈钢对接面上滑动时，观察到经过锌酸盐处理的铝合金上的Ni-P粉煤灰涂层的耐磨性高于裸露的铝合金。此外，还使用刮擦测试仪研究了Ni-P-粉煤灰/锌酸盐涂层与铝合金基材之间的粘附力。观察到与相同铝合金上的Ni-P /锌酸盐涂层相比，Ni-P-粉煤灰/锌酸盐涂层在铝合金基材上的粘附强度更高。

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