I need to identify the chemical nature of a thin coating made on a small
piece of high carbon steel. I have a very limitted access to technological
tools.
How can I know what it is? Or, how could I discard some coating (in an
elimination process)?
I know it is dark gray (almost black) and very hard. I don't know the
process used; could be PVD or others (Carburizing, Nitrizing,
Borodizing,...). The coating is very thin, somewhere between 0 to 30
micrometer. I'm telling that because the thickness of the portion not coated
has no visible difference in thickness with the coated portion.
Thank you in advance,
Roger
- posted
17 years ago