Marine wear and tribocorrosion
Marine wear and tribocorrosion
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DOI：
10.1016/j.wear.2017.01.076
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发表时间：
2017-04
期刊：
影响因子：
5
通讯作者：
R. Wood
中科院分区：
文献类型：
--
作者：
R. Wood
随着船舶系统使用的增长和对海水润滑要求的提高，用于推进、轴承和机械密封的关键船用合金的性能受到严格审查。例如，散货船和远洋班轮的使用和尺寸的增加需要更好地了解螺旋桨的性能，并且需要预测和改进抗气蚀性。海洋自主和可再生能源系统以及水产养殖的增长也强调了对海洋合金摩擦腐蚀性能的更深入了解。因此，本文将审查海洋磨损和摩擦腐蚀，并重点关注候选或现有材料的组件必须在磨损的风险（即推进和海水处理系统）和缓解策略，用于限制磨损的影响，在积极的海洋环境。它将着眼于最近的研究，在空蚀和滑动磨损条件下，在盐水溶液中的性能的铸造镍铝青铜，一种推进材料的选择。随着时间的推移，空蚀腐蚀过程中的质量损失和原位电化学测量将沿着与表面和次表面上的微观结构和成分的变化详细参考。将探讨表面膜的影响及其稳定性。对于滑动磨损测试，薄膜去除和修复的时间方面作为滑动频率的函数将沿着补充磨损率、摩擦和腐蚀电流。一些涂层和散装复合材料替代NAB的初步结果也将提交。还将介绍NAB的固体颗粒冲刷腐蚀研究。详细讨论了海洋摩擦腐蚀下存在的机械和电化学过程之间的相互作用的量化的挑战。
As the use of marine systems grows and the requirements for seawater lubrication grows, the performance of key marine alloys used in propulsion, bearings and mechanical seals is under scrutiny. For example, the increased use and size of bulk carriers and ocean liners requires performance of propellers to be better understood and cavitation resistance needs to be predicted and improved. The growth in marine autonomous and renewable energy systems as well as aquaculture also places emphasise on greater understanding of marine alloy tribocorrosion performance. Therefore, this paper will review marine wear and tribocorrosion and focus on candidate or existing materials for the components must at risk of wear (i.e. propulsion and seawater handling systems) and the mitigating strategies used to limit effects of wear in aggressive ocean environments. It will look at recent research into the performance of cast nickel aluminium bronze, a propulsion material of choice, under cavitation erosion and sliding wear conditions in saline solutions. The mass loss and in-situ electrochemical measurements during cavitation erosion corrosion over time will be presented along with detailed reference to microstructural and compositional changes on the surface and subsurface. The influence of surface films and their stability will be explored. For sliding wear tests the temporal aspects of film removal and repair as a function of sliding frequency will be presented along with complimentary wear rates, friction and corrosion currents. Some initial results on coatings and bulk composite alternatives to NAB will also be presented. Research into solid particle erosion-corrosion will also be presented for NAB. The challenges in quantification of the interactions between mechanical and electrochemical processes present under marine tribocorrosion are discussed in detail.