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01.12.2024 | Original Paper

A Newly Developed Heavy-Haul Wheel Steel with Excellent Rolling Contact Fatigue Performance Assessed by an Innovative Vision System

verfasst von: Ting-wei Zhou, Hai Zhao, Hang Yuan, Zhen-lin Xu, Yi-zhu He, Shi-huai Su, Dong-fang Zeng

Erschienen in: Tribology Letters | Ausgabe 4/2024

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Abstract

In dem Artikel wird ein neu entwickelter Schwerlastradstahl vorgestellt, der eine hervorragende Leistung im Bereich der Rollkontaktermüdung (RCF) aufweist. Traditioneller Lamellenperlstahl ist aufgrund seiner ausgereiften Fertigungstechnologie weit verbreitet, aber moderne Fortschritte haben zur Entwicklung fortschrittlicher Radwerkstoffe mit überlegenen mechanischen Eigenschaften geführt. Der neue Radstahl wurde durch Optimierung der Legierungszusammensetzung und des Wärmebehandlungsprozesses entwickelt, was zu einem feineren Lamellenabstand und einem höheren Perlitanteil führte. Die RCF-Leistung des neuen Stahls wurde mit einem spezialisierten Tester mit zwei Scheiben bewertet, der mit einem fortschrittlichen Vision-System ausgestattet war, das eine dynamische Verfolgung und Analyse der Schadensentwicklung ermöglichte. Die Studie ergab, dass der neue Radstahl im Vergleich zu herkömmlichem Stahl eine signifikant verbesserte RCF-Lebensdauer aufwies, wobei die Ermüdungsdauer unter Ölbedingungen 2,7-mal länger war. Der Artikel beleuchtet auch den Einfluss der Kontaktbedingungen auf die Schadensmorphologie, wobei die Ölbedingungen zu einzelnen Abplatzgruben und die trockenen Bedingungen zu zahlreichen kleinen Abplatzgruben führen. Der Einsatz fortschrittlicher Bildverarbeitungssysteme bietet einen zerstörungsfreien Ansatz zur Analyse von Schadensvariationen bei Rad-Schienen-Kontakten während der Tests und bietet wertvolle Einsichten in die Ermüdungsmechanismen von Schwerlasträdern.

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Titel: A Newly Developed Heavy-Haul Wheel Steel with Excellent Rolling Contact Fatigue Performance Assessed by an Innovative Vision System
verfasst von: Ting-wei Zhou
Hai Zhao
Hang Yuan
Zhen-lin Xu
Yi-zhu He
Shi-huai Su
Dong-fang Zeng
Publikationsdatum: 01.12.2024
Verlag: Springer US
Erschienen in: Tribology Letters / Ausgabe 4/2024
Print ISSN: 1023-8883
Elektronische ISSN: 1573-2711
DOI: https://doi.org/10.1007/s11249-024-01914-9

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A Newly Developed Heavy-Haul Wheel Steel with Excellent Rolling Contact Fatigue Performance Assessed by an Innovative Vision System

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