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Salt bath nitriding / liquid nitriding advantages include active case hardening process (compound zone), additional lubricity, improved corrosion resistance, as well as improved aesthetics. Dimensional stability of processed parts does not change and core properties are uncompromised. Salt bath nitriding / liquid nitriding can be performed on thru hardened steel. This yields the benefits of thru hardening in the addition to a harder surface. This can be up to 75Rc, depending on the material. Subjacent to the compound zone is another distinctive region, the diffusion zone. This evolves from progressive diffusion of the nitrogen, and consists of a solid solution of nitrogen in the base material. The diffusion zone contributes another critical benefit of salt bath nitriding: substantial enhancement of fatigue strength, typically between 20% to 100%. |
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