Characterization of oxidative processes associated to low-severity tire tread wear

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2025-01-24 DOI:10.1016/j.wear.2025.205753

C. Chanal , J. Galipaud , B. Moreaux , J.-L. Loubet , P. Sotta

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引用次数: 0

Abstract

As the tire tread wears throughout its lifetime, particles are generated due to small-scale fracture processes. Friction and wear may also involve physico-chemical degradation of the material. In this paper, the chemical effects associated to low-severity wear of filled Styrene Butadiene Rubber (SBR)/cis-Butadiene Rubber (BR) materials were investigated. Laboratory wear tests were performed using a home-made rotary tribometer in which intermittent sliding contacts on a slightly rough granite surface are applied. This enables imitating real conditions in terms of kinematics and dynamics of the contact for tire treads. The resulting wear patterns were analyzed through X-ray Photoelectron Spectroscopy (XPS) and Scanning Electron Microscopy (SEM). The results show that sulfur oxidation occurs concomitantly to wear. Besides, thermal measurements reveal no significant temperature increase at the sample surface during the wear tests. This suggests that the observed chemical changes are not thermally activated but are instead due to mechanical phenomena related to interface shear. Analysis of the wear debris indicates that their chemical composition is consistent with that of the wear patterns.

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来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.