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首页> 外文会议>Leeds-Lyon Symposium on Tribology; 20040907-10; Leeds(GB) >The effect of dissolved ions on tribological properties in water
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The effect of dissolved ions on tribological properties in water

机译：溶解离子对水中摩擦学特性的影响

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In this study, tribological tests in subtle aqueous solutions were carried out to examine the effect of dissolved ions in water for the development of hydraulic pumps and valves using basically not ceramics but metals. AISI 304 stainless steel disks were slid against alumina balls in controlled solutions. Solutions contained principal ions dissolved in tap water such as Cl~-, SO_4~(2-), Ca~(2+) etc and their concentration was as subtle as tap water. Electrochemical control and measurement were also performed to elucidate the effect of the electrochemical factor. As a result, anions had predominant influence on wear and friction especially under high load conditions; Cl~- and SO_4~(2-) protected the surface with their own corrosion products and NO_3~- accelerated wear. The effect of cations was insignificant. The electrochemical approach revealed synergetic phenomena of mechanical and electrochemical factors and formation of a tribo-corrosion film.
机译：在这项研究中，在微弱的水溶液中进行了摩擦学测试，以检查水中溶解的离子对液压泵和阀门的开发的影响，该泵基本上不使用陶瓷，而是使用金属。将AISI 304不锈钢圆盘在受控溶液中紧贴氧化铝球滑动。溶液中含有溶解在自来水中的主离子，例如Cl〜-，SO_4〜（2-），Ca〜（2+）等，其浓度与自来水一样微妙。还进行了电化学控制和测量，以阐明电化学因素的影响。结果，尤其是在高负载条件下，阴离子对磨损和摩擦有主要影响； Cl〜-和SO_4〜（2-）通过自身的腐蚀产物和NO_3〜-加速磨损保护了表面。阳离子的作用微不足道。电化学方法揭示了机械和电化学因素的协同现象以及摩擦腐蚀膜的形成。

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