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首页> 外文期刊>Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear >Influence of WC carbide particle size on the microstructure and abrasive wear behavior of WC-10Co-4Cr coatings for aircraft landing gear
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Influence of WC carbide particle size on the microstructure and abrasive wear behavior of WC-10Co-4Cr coatings for aircraft landing gear

机译：WC碳化物粒度对飞机起落架WC-10Co-4Cr涂层的微观结构和磨粒磨损行为的影响

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摘要

WC-Co-Cr thermal spray coatings are possible replacements for hard chrome plating on aircraft landing gear because of their superior wear resistance and environmentally friendly properties. In this study, four HVOF spray WC-10Co-4Cr coatings were deposited. During deposition, WC (tungsten carbide) particles were mixed into the coating. These included two types of single particle size distributions and two types of bimodal particle size distributions. The microstructure and abrasive wear behavior of these coatings were studied. The relationship among WC particle distributions, the deposit microstructure, and the three-body abrasive wear rates by rounded quartz grains was determined. The coating that only contained single particle size distribution of 1.2 mu m-sized WC particles exhibited the best abrasive wear resistance. (C) 2016 Elsevier B.V. All rights reserved.
机译：WC-Co-Cr热喷涂层可以替代飞机起落架上的硬铬，因为它们具有出色的耐磨性和环保特性。在这项研究中，沉积了四个HVOF喷涂WC-10Co-4Cr涂层。在沉积过程中，将WC（碳化钨）颗粒混合到涂层中。这些包括两种类型的单一粒度分布和两种类型的双峰粒度分布。研究了这些涂层的微观结构和磨料磨损行为。确定了WC颗粒分布，沉积物微观结构和圆形石英晶粒对三体磨料磨损率之间的关系。仅包含1.2微米大小WC颗粒的单个粒度分布的涂层表现出最佳的耐磨性。 （C）2016 Elsevier B.V.保留所有权利。

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