Editing Micro pitting (section)

==Pitting and micropitting==
The difference between pitting and micropitting is the size of the pits after surface [[material fatigue|fatigue]]. Pits formed by micropitting are approximately 10–20 μm in depth, and to the unaided eye, micropitting appears dull, etched or stained, with patches of gray.<ref>{{Cite journal |last=Errichello |first=R. L. |date=2012 |title=Morphology of Micropitting |url=https://www.geartechnology.com/ext/resources/issues/1112x/morphology_of_micropitting.pdf |journal=Gear Technology |pages=74–81 |via=}}</ref> Normal pitting creates larger and more visible pits. Micropits are originated from the local contact of [[Asperity (material science)|asperities]] produced by improper [[lubrication]].