Aus Wissenschaft und Forschung 13Tribologie + Schmierungstechnik · 70. Jahrgang · 2/2023DOI 10.24053/TuS-2023-0008 Untersuchungen zur wirtschaftlichen Nutzung von Niedertemperatur-Nitrier- prozessen durch Übertragung auf Behandlungen im industriellen Maßstab [POSEIDON (II)]

Abstract

Sealless rolling bearings for use under media lubricated conditions are exposed to high tribocorrosive loads. To achieve the necessary wear resistance while keeping up the corrosion properties of the corrosion resistant steels low-temperature-plasma-diffusion-treatments were conducted. When scaling-up the developed low-temperature-plasma-nitriding-processes to industrial dimensions, it is necessary to reach the required surface conditions independently of the parts placement within the batch. Upscaling to industrial batch processes was analyzed by using the example of rolling bearings. To achieve a homogeneous treatment result, relevant factors like temperature distribution and component placement were taken into account. This allows to draw conclusions about the surface layer properties in dependence of temperature, batch arrangement and position within the batch to verify the treatment results homogeneity.