CAJ | 학술논문

采用UMT-3摩擦实验机研究氧化铝陶瓷在海水润滑条件下的摩擦学行为,并与其在干摩擦和纯水润滑条件下的摩擦学行为进行比较.利用扫描电子显微镜和X-射线光电子能谱观察并分析氧化铝陶瓷磨损表面形貌以及磨损表面主要元素的化学状态,探讨氧化铝陶瓷在海水中的摩擦化学特性.结果表明,氧化铝陶瓷在干摩擦时具有最大的摩擦因数和最小的磨损率,在海水润滑条件下具有最小的摩擦因数和最大的磨损率,这是氧化铝在海水中发生了摩擦化学反应的结果.氧化铝陶瓷在干摩擦时的磨损主要表现为轻微的脆性剥落,在纯水润滑条件下表现为严重的脆性剥落,而在海水润滑条件下表现为摩擦化学磨损以及极轻微的脆性剥落.
채용UMT-3마찰실험궤연구양화려도자재해수윤활조건하적마찰학행위,병여기재간마찰화순수윤활조건하적마찰학행위진행비교.이용소묘전자현미경화X-사선광전자능보관찰병분석양화려도자마손표면형모이급마손표면주요원소적화학상태,탐토양화려도자재해수중적마찰화학특성.결과표명,양화려도자재간마찰시구유최대적마찰인수화최소적마손솔,재해수윤활조건하구유최소적마찰인수화최대적마손솔,저시양화려재해수중발생료마찰화학반응적결과.양화려도자재간마찰시적마손주요표현위경미적취성박락,재순수윤활조건하표현위엄중적취성박락,이재해수윤활조건하표현위마찰화학마손이급겁경미적취성박락.
@@@@Tribological behaviors of alumina ceramic under seawater lubrication were investigated UMT-3 friction test-er,and compared with those under dry friction and pure water lubrication. The tribo-chemical properties of alumina ceram-ic in seawater were discussed by observing its worn surfaces morphology using scanning electron microscopy (SEM)and determining the chemical states of elements on the worn surface using X-ray photoelectron spectroscopy (XPS). Results show that the alumina ceramic has the highest friction coefficient and the lowest wear rate under dry friction condition,and the lowest friction coefficient and the highest wear rate under seawater lubrication,which is due to the tribo-chemical reac-tion of Al2 O3 occurred in seawater. The wear mechanism is slight brittle spalling under dry friction condition,serious brittle spalling under pure water lubrication,tribo-chemical wear and rarely brittle spalling under seawater lubrication.