Numerical Simulation of the Abrasive Wear Behavior of Selectively Oxidized α-Fe2O3 Oxide Layers on Tool Steel Surfaces

verfasst von
Simon Schöler, Christoph Kock, Fahrettin Özkaya, Christopher Nowak, Kai Möhwald, Bernd Arno Behrens, Hans Jürgen Maier
Abstract

Selective oxidization of tool steel surfaces was studied, as this is a promising approach to realize lubricant-free forming processes. Specifically, the dry sliding wear of a tribosystem consisting of hardened tool steel (1.2379) and DP600 + Z sheet metal was investigated. The tool surfaces were selectively oxidized under an inert gas atmosphere to curtail abrasive wear. It turned out that tool surfaces that contained larger near-surface chromium carbides are not suitable for dry sliding wear, as these promote abrasive wear in the tribosystem. In addition, such carbides pose a challenge for selective oxidation. Optimized heat treatment strategies resulted in smaller chromium carbides, which could be selectively oxidized. To gain further insights into the wear behavior of the oxide layer, a mathematical model was developed. Worn sample surfaces were characterized with high-resolution tools, and the results provided input data for the numerical model.

Organisationseinheit(en)
Institut für Werkstoffkunde
Institut für Umformtechnik und Umformmaschinen
Typ
Artikel
Journal
JOM
Band
72
Seiten
2536-2547
Anzahl der Seiten
12
ISSN
1047-4838
Publikationsdatum
07.2020
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Allgemeine Materialwissenschaften, Allgemeiner Maschinenbau
Elektronische Version(en)
https://doi.org/10.1007/s11837-020-04172-x (Zugang: Geschlossen)
 

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