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Coating
Selection for medium carbon steel parts |
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- Carburising (Case-Hardening) for high hardness and load-carryingcapacity.
Note that there may be problems of distortion.
- Nitriding or Nitrocarburising if the loads are light.
- Electroless Nickel and associated composites
for corrosive wear situations. Hardening at 400oC will provide
additional wear resistance. Ceramic-filled-electroless nickel will give
further wear resistance. PTFE-filled electroless nickel will give low
friction, but high wear if the load is high.
- Hard Chrome Plate for excellent wear
prevention. Choose the thickness on the basis of the load. E.g. Cr plate
is used on car body dies. Good for corrosive wear if protected with
an underlayer of electrolytic nickel.
- Thermally Sprayed Metals or Alloys
for wear and corrosion. E.g. tool steels.
- Thermally Sprayed Ceramics or Cermets
for maximum wear resistance. E.g. WC/Co, alumina, chromium oxide, etc.
A corrosion barrier is required under the hard coating if corrosion
is likely.
- Local surface hardening (flame, imduction, laser) for maximum loading,
and for large rolling components (e.g. large cylindrical roller bearings
and tracks).
In some cases, clicking on the coating type will take you to the appropriate
Poeton product.
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