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首页> 外文会议>World Tribology Congress III vol.1; 20050912-16; Washington,DC(US) >SLIDING WEAR BEHAVIOR OF PLASMA SPRAYED ZIRCONIA CERAMIC COATING UNDER DIFFERENT CONDITIONS
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SLIDING WEAR BEHAVIOR OF PLASMA SPRAYED ZIRCONIA CERAMIC COATING UNDER DIFFERENT CONDITIONS

机译：不同条件下等离子喷涂氧化锆陶瓷涂层的滑动磨损行为

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摘要

The sliding wear behavior of ZrO_2-22wt%MgO (MZ) and ZrO_2-8wt%Y_2O_3 (YZ) deposited on a cast aluminum alloy with bond layer (NiCrCoAlY) by plasma spray against a SiC ball was investigated under dry and lubrication conditions at room temperature. At all load conditions, the wear mechanisms of the MZ and YZ coatings were almost the same. The wear mechanism involved material transfer and pullout under dry condition, but micro-fractures and spallation under lubrication condition. When oil was used for lubrication, the friction coefficient of the sliding pairs and the wear loss of the ceramics were reduced. The wear loss of the MZ coating was less than that of the YZ coating under dry test, but more than that of the YZ coating under lubrication test. The test conditions and the mechanical properties of the ceramic coatings were correlated to the wear performance.
机译：在室内干燥和润滑条件下，通过等离子喷涂研究了ZrO_2-22wt％MgO（MZ）和ZrO_2-8wt％Y_2O_3（YZ）沉积在具有粘结层的铸造铝合金（NiCrCoAlY）上对SiC球的滑动磨损行为。温度。在所有负载条件下，MZ和YZ涂层的磨损机理几乎相同。磨损机理包括在干燥条件下的材料转移和拔出，但在润滑条件下的微裂纹和剥落。当使用油润滑时，滑动副的摩擦系数和陶瓷的磨损减少。在干式试验中，MZ涂层的磨损损失小于YZ涂层，但在润滑性试验中，其磨损损失大于YZ涂层。陶瓷涂层的测试条件和机械性能与磨损性能相关。

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