3. Layer thickness measurements
The term layer thickness is reserved for a layer created from the surface of the product:
organic coating, metallic coating obtained by electrolytic, chemical or physical processes;
layer obtained by diffusion of a new element on the surface of the product: carburizing with carbon, nitrogen, etc.
The thickness of coatings is an essential characteristic when the aim is to protect against corrosion; it is the subject of negotiation between manufacturer and user, and very often the thickness of the coating determines the cost of the operation. Standard NF A 91-010 provides precise definitions of minimum...
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Layer thickness measurements