Behandlungsergebnisse gelenknaher Pseudarthrosen an der oberen Extremit�t

Zenker, H; Hw, Bär

doi:10.1007/bf00418781

Cited by 1 publication

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The compound layer is partially or completely decomposed during austenitization by nitrogen effusion as a result of the low nitrogen partial pressure at the workpiece surface. This results in an increase in the porosity at the very surface due to the formation of molecular nitrogen, and inner oxidation takes place [23][24][25]. Some approaches to avoid compound layer decomposition exist, using a low austenitizing temperature and a short austenitizing time [24].…”

Section: Introductionmentioning

confidence: 99%

“…A partial or complete decomposition of the compound layer during austenitization results in a layer with residual austenite forming below the (former) compound layer due to the high nitrogen concentration [24][25][26]. Furthermore, the corrosion resistance and the adhesive wear resistance are reduced if the compound layer no longer exists at the surface, since these properties are primarily determined by the compound layer [12].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Investigation into the Wear Behavior of Martensitically Transformed Nitrided Layers

Hoja,

Birjandi,

Hasselbruch

et al. 2023

Lubricants

View full text Add to dashboard Cite

To improve the service behavior of gears, surface heat treatments such as nitriding or induction hardening can be performed. Since these processes are limited in their achievable maximum hardness or depth of hardness, a combination treatment could allow benefits from the advantages of both processes. The aim of this work was to show the correlation between the microstructure resulting from combination treatment and the performance of the surface layer using the example of wear behavior. The investigations focused on the impact of different nitrided states, in the combination treatment of the material EN31CrMoV9, on wear resistance. The wear was evaluated after running the two-disc test gravimetrically and optically. Nitrided-only specimens showed better wear resistance compared to those subjected to induction hardening after nitriding. Substantial differences in weight loss indicate that induction hardening worsens the wear behavior. The variants with the compound layer removed in the nitride-only state as well as in the induction hardened state showed a better wear behavior compared to the respective conditions with a compound layer. This was attributed to the lower surface roughness and the higher hardness due to less retained austenite after combination treatment.

show abstract

Section: Introductionmentioning

confidence: 99%