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首页> 外文期刊>Tribology International >Performance of abrasive wear of WC-12Co coatings sprayed by HVOF
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Performance of abrasive wear of WC-12Co coatings sprayed by HVOF

机译：HVOF喷涂WC-12Co涂层的磨料磨损性能

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摘要

The performance of multimodal and conventional materials in the form of coatings deposited by high velocity oxy-fuel (HVOF) thermal spraying has been studied. WC-12Co coatings were deposited under same conditions using multimodal and conventional WC-12Co powder feedstocks. The phase composition of the feedstock powders and the coatings were analyzed by XRD. Abrasive wear resistances of coatings were carried out on wet sand rubber wheel abrasion tester. The characterizations of spraying feedstock powders, microstructure and surface micrographs of the prophase and anaphase attrition surfaces were performed by SEM. The results indicated the multimodal coating shows slight higher microhardness and better abrasive wear resistance than the conventional counterpart. Also, the thermally sprayed carbide-based coatings have excellent wear resistance with respect to the hard chrome coatings.
机译：已经研究了通过高速氧-燃料（HVOF）热喷涂沉积的涂层形式的多峰和常规材料的性能。使用多峰和常规WC-12Co粉末原料在相同条件下沉积WC-12Co涂层。通过XRD分析原料粉末和涂层的相组成。涂层的耐磨性在湿砂橡胶轮磨损测试仪上进行。用扫描电镜对原料粉末的喷涂，前期和后期磨损表面的显微结构和表面显微照片进行了表征。结果表明，该多峰涂层比常规涂层具有更高的显微硬度和更好的耐磨性。而且，相对于硬铬涂层，热喷涂碳化物基涂层具有优异的耐磨性。

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