The gas mixture of Hydrogen and Nitrogen can be controlled to produce a white layer or minimal amount. The white layer is a very hard, but brittle surface layer. Methane can be added as a third process gas to perform Ferritic Nitrocarburizing. Typical case depths are in the .001"-.020" range.
- Plasma nitriding is used in applications when high surface hardness is required. In general, case depths are lower than carbonitriding and carburizing due to the lower processing temperature.
- Plasma nitriding takes place at sub-critical temperatures, meaning there is no phase transformation during the process. This results in extremely low distortion compared to processes such as carburizing, carbonitriding, and through hardening.
- Plasma nitriding can improve the corrosion resistance of a part.
What To Consider When Specifying
- Case Depth
- White Layer Composition (if required)
- Spec (if required)
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