| 摘要 |
Ferrous coatings of the cylinder working surfaces of combustion engine blocks have a content of bound oxygen in the amount of between 1 to 4% by weight. They are characterized by extraordinary properties as far as tribology and the possibility of processing, e.g. machining, are concerned. Particularly, the coefficient of friction and the tendency to scuffing are substantially reduced. Such coatings can be realized, for example, by adding an amount of 200 to 1000 normalized liters air per minute during the plasma spraying operation.
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