齿面点蚀是机械传动中最常见的失效形式之一.我们对祖面点蚀的了解,是从有关的教科书或生产实践中认识的.所谓点蚀,就是齿面材料在变化的接触应力条件下,由于疲劳而产生的麻点状剥蚀损伤现象.齿面上最初出现的点蚀仅为针尖大小麻点或为较小的疲坑(直径可达2～3mm),然后逐渐扩大,最后甚至连在一块,形成了明显的剥蚀斑痕.点蚀不仅见于齿轮,在滚动轴承中也是常见的失效形式之一.实际上,齿面点蚀可以分为二个阶段. Teeth pitting corrosion is one of the most common forms of failure in mechanical transmission.Our understanding of ancestral pitting is recognized in the relevant textbooks or production practices.The so-called pitting corrosion is the change of contact stress Under the conditions of pitting pitting damage due to fatigue phenomenon.The first pitting on the tooth surface is only the tip of the pocketed or smaller fatigued pit (diameter up to 2 ~ 3mm), and then gradually expanded, and finally Even in a piece, forming a significant erosion of the scar.Pitope not only seen in the gear, is also a common form of failure in the rolling bearing.In fact, the tooth surface pitting can be divided into two stages.