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首页> 外文期刊>Powder Metallurgy and Metal Ceramics >EFFECT OF ABRASIVE PARTICLE SIZES ON ABRASIVE WEAR OF CERAMIC COATINGS SPRAYED BY PLASMA PROCESS
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EFFECT OF ABRASIVE PARTICLE SIZES ON ABRASIVE WEAR OF CERAMIC COATINGS SPRAYED BY PLASMA PROCESS

机译：磨料颗粒尺寸对等离子喷涂陶瓷涂层磨耗的影响

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摘要

This study examines the effects of abrasive grain size on abrasive wear behaviors on surfaces coated with different types of ceramics. To this end, the surface of AISI 1040 steel is coated with the ceramic materials of 5% SiO_2-3% TiO_2-92% Cr_2O_3, 60% Al_2O_3-40% TiO_2, pure Al_2O_3 and 87% Al_2O_3-13% TiO_2 using the plasma method. Following the coating process, the abrasive wear resistance of each sample is tested by the ring-on-disc method. 80-220 mesh SiC abrasive paper is used as abrasive. The best wear resistance is obtained with the ceramic coating containing 92% Cr_2O_3, which is followed by pure Al_2O_3 and 87% Al_2O_3-13% TiO_2, respectively. The lowest wear resistance is observed in 60% Al_2O_3-40% TiO_2 ceramic coating. Wear resistance of the samples increases with increasing hardness value and decreasing abrasive grain size. It is observed that wear mechanisms occurring on the samples' wear surfaces change with changing abrasive grain size. Wear mechanisms such as microscratching, microcracking, and plastic deformation are observed in the samples.
机译：这项研究检查了磨料粒度对涂有不同类型陶瓷的表面上磨料磨损行为的影响。为此，AISI 1040钢的表面使用等离子喷涂5％SiO_2-3％TiO_2-92％Cr_2O_3、60％Al_2O_3-40％TiO_2，纯Al_2O_3和87％Al_2O_3-13％TiO_2的陶瓷材料方法。在涂覆过程之后，通过圆盘法测试每个样品的耐磨性。使用80-220目SiC砂纸作为磨料。陶瓷涂层含有92％Cr_2O_3，其次是纯Al_2O_3和87％Al_2O_3-13％TiO_2，可以获得最佳的耐磨性。在60％Al_2O_3-40％TiO_2陶瓷涂层中观察到最低的耐磨性。样品的耐磨性随硬度值的增加和磨粒尺寸的减小而增加。观察到，在样品的磨损表面上发生的磨损机理随着磨料粒度的变化而变化。在样品中观察到了磨损机制，如微划痕，微裂纹和塑性变形。

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