(2) Lubrication In some cases, such as couplings and splines, the use of liquid lubricants can effectively reduce its micro-motion wear. But in many cases can not use liquid lubricants, need to use solid lubricants, such as graphite and molybdenum disulfide.
(3) the choice of friction sub-materials usually high hardness materials have good resistance to micromotional wear, but poor resistance to micromotional fatigue performance. Generally speaking, high fracture toughness, low notch sensitivity of the material resistance to microscopic fatigue performance is better. Reasonable allocation of materials, to improve the tribological properties is very important, for micro-motion wear is the same. The same combination of materials is often easy to micro-motion wear, so should be as far as possible to choose a different material configuration. But for the increase of static friction can make the micro-motion amplitude drop to reduce the micro-motion wear, should be selected to easily occur adhesion of the material combination.
In general, the hexagonal crystal system of the metal than the cubic crystal system of the metal resistance to micro-motion wear ability. Materials with a small difference in oxide hardness between the two materials of the friction sub-materials are less susceptible to micro-motion wear. Certain non-metallic materials, such as engineering plastics and ceramics, are more resistant to micromotional wear than steel. Material selection at the same time to take into account the ring wall conditions and working conditions, for example, medium carbon steel at room temperature microscopic wear resistance than stainless steel; and at high temperatures, curved on the surface of stainless steel to form a "glaze", and show a high resistance to microscopic wear.
(4) surface strengthening treatment and coating to improve the physical and chemical properties of the contact surface of the process methods, such as deformation strengthening treatment (shot peening, rolling, etc.), heat treatment and chemical heat treatment, electroplating, ion plating, ion implantation, vapor deposition (PVD and CVD), laser deposition, and so on. These surface treatment methods that can form surface coatings or thin films are able to strengthen the surface to varying degrees, protect the surface from corrosion, reduce system thermodynamic instability, and effectively reduce micromotion wear.
