John Merbin, Menezes Pradeep L
Department of Mechanical Engineering, University of Nevada, Reno, NV 89557, USA.
Materials (Basel). 2021 Sep 26;14(19):5588. doi: 10.3390/ma14195588.
Lubrication for extreme conditions, such as high temperature, cryogenic temperature, vacuum pressure, high load, high speed, and corrosive environments, is a continuing challenge among tribologists and space engineers due to the inadequate friction and wear properties of liquid lubricants. As a result, tremendous research effort has been put forward to study lubrication mechanisms for various machine elements under challenging conditions over the past two decades. Self-lubricating materials have been most widely used for adequate lubrication in extreme conditions in recent years. This review paper presents state-of-the-art of materials for lubrication in extreme condition applications in aerospace, automotive, and power generation areas. More specifically, solid lubricants dispersed in various matrices for lubrication application were analyzed in-depth under challenging conditions. This study also reports the self-lubricating materials and their lubrication mechanisms. Finally, various applications and challenges of self-lubricating materials were explored.
在高温、低温、真空压力、高负荷、高速和腐蚀性环境等极端条件下的润滑，一直是摩擦学家和航天工程师面临的挑战，因为液体润滑剂的摩擦和磨损性能不足。因此，在过去二十年中，人们投入了大量的研究精力来研究各种机器元件在具有挑战性的条件下的润滑机制。近年来，自润滑材料在极端条件下得到了最广泛的应用，以实现充分润滑。本文综述了航空航天、汽车和发电领域极端条件应用中的润滑材料的最新进展。更具体地说，深入分析了分散在各种基体中的固体润滑剂在具有挑战性的条件下的润滑应用。本研究还报告了自润滑材料及其润滑机制。最后，探讨了自润滑材料的各种应用和挑战。
