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Effect of Testing Parameters on Wear Properties of Alumina Strengthen 3Y-TZP Ceramics

机译：测试参数对氧化铝增强3Y-TZP陶瓷磨损性能的影响

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摘要

The wear behaviours of alumina strengthen 3 Y-TZP ceramics worn against high chromium cast iron under various testing conditions were investigated using a block-on-block tribometer. The results showed that the wear rate increases with the increasing of the load and the sliding time. Under the low load the main mechanism governing the wear properties of ceramic is the apparent plastic deformation and ploughing, and the wear rate rapidly increases and the wear mechanism changes into brittle fracture under high load. Meanwhile the wear resistance is depended on the properties of the abrasive particle. As expected, the wear resistance was increased with decreasing hardness of abrasive particle, but it was also influenced by the morphology, that is, the sharper the abrasive particle the higher wear rate.
机译：使用块对块摩擦计研究了在各种测试条件下对高铬铸铁磨损的氧化铝增强3 Y-TZP陶瓷的磨损行为。结果表明，磨损率随着载荷和滑动时间的增加而增加。在低载荷下，决定陶瓷磨损性能的主要机理是表观塑性变形和起伏现象，在高载荷下，磨损率迅速增加，磨损机理转变为脆性断裂。同时，耐磨性取决于磨料颗粒的性质。正如预期的那样，耐磨性随着磨料颗粒硬度的降低而增加，但是它也受到形貌的影响，即，磨料颗粒越锋利，则磨损率越高。

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