22nd November, 2017

Plasma Ferritic Nitrocarburising with Post Oxidation (PlasOx)

Metaltech have enhanced the plasma assisted ferritic nitrocarburising process with a steam oxidation cycle to produce a coating in one process that has the many advantages over conventional ferritic nitrocarburising and Tufftride processes.

Metaltech's Plasma assisted ferritic nitrocarburising achieves improved results over the salt bath and gaseous processes. The media is produced by the controlled ionisation of nitrogen, hydrogen and methane enabling the diffusion of nitrogen and carbon into the component surface. By a targeted and controlled oxidation phase into the compound layer produces by the initial plasma treatment (post oxidation) the corrosion resistance can be significantly enhanced. The treatment known as PLASOX is done in a single stage process unlike the Tufftride QPQ treatment. Therefore, it has an immediate advantage over the QPQ process in that no mechanical processing is required – it is essentially a one stop shop process.

Benefits of the PLASOX processes:

For further information on this process contact Dr G Forster at

Alloy 4140 – 24hrs salt fog corrosion test ASTM B117-3 Alloy 4140 – QGQ Tufftride- 48hrs salt fog corrosion test ASTM B117-3
 
Alloy 4140 – PlasOx - 72hrs salt fog corrosion test ASTM B117-3 Salt spray corrosion test to ASTM V117-3


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