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前言处于高载下作高频率微量滑动的两接触面之间的严重磨损与腐蚀破坏称为微动磨损fretting。微动磨损是一种机械-化学的过程,它使两相对滑动面产生化学活泼的表面,然后形成氧化物磨屑,严重地影响着材料表面的擦摩学行为。不少机件经常发生微动磨损,加速疲劳失效,其后果往往造成灾难性的破坏。在微振运动下,滚动轴承的损坏往往以布氏压痕的形式出现。防止微动磨损的有效措施之一是采用减摩高聚物。然而某些高聚物对钢亦会发生微动磨损:例如以
Preface Serious wear and corrosion damage between two contact surfaces under high load for high frequency micro-sliding is called fretting fretting. Fretting wear is a mechanical-chemical process that produces chemically active surfaces on two opposing sliding surfaces and then forms oxide wear debris that severely affects the rubbing behavior of the material surface. Frequent wear and tear of many parts to accelerate fatigue failure, the consequences often lead to catastrophic damage. In the micro-vibration movement, the failure of rolling bearings often appear in the form of Brinell indentation. One of the effective measures to prevent fretting wear is to use anti-friction polymer. However, some polymers also exhibit fretting wear on steel: for example