On the influence of carbides in laser-cladded coating on friction, wear, and airborne particle emissions of disc brakes

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2025-05-06 DOI:10.1016/j.wear.2025.206107

Bassent Dridi , Rikard Hjelm , Lucia Lattanzi , Samuel Awe , Joakim Pagels , Jens Wahlström , Yezhe Lyu

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引用次数: 0

Abstract

Recently, it has become a focus to reduce non-exhaust aerosol emissions from the transport sector. One possible way to decrease brake particle emissions is by laser-cladding coatings onto brake discs. This work tested five different laser-cladding coated brake discs against a non-asbestos organic brake pad. The performance of these coatings was compared to a commercial grey cast iron brake disc tested against both low-metallic and non-asbestos organic brake pads. A specialized experimental system composed of a pin-on-disc tribometer, an aerodynamic particle sizer (APS) spectrometer, and a condensation particle counter (CPC) was employed to compare wear mass loss, coefficient of friction, particle number and mass concentration, and size distribution. The worn surfaces of pads and discs were analysed using scanning electron microscopy and energy-dispersive X-ray spectroscopy. The results showed that the tungsten carbide-reinforced laser-cladded coating exhibited the lowest wear and particle number concentration compared to the other coatings and the commercial references.

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激光熔覆层中碳化物对盘式制动器摩擦、磨损及空气粒子排放的影响

最近，减少运输部门的非废气气溶胶排放已成为一个焦点。减少制动颗粒排放的一种可能方法是在制动盘上使用激光熔覆涂层。这项工作测试了五种不同的激光覆层涂层制动盘与非石棉有机刹车片。将这些涂层的性能与商用灰铸铁制动盘进行了比较，测试了低金属和非石棉有机刹车片。采用由针盘式摩擦计、气动粒径计（APS）和冷凝颗粒计数器（CPC）组成的专用实验系统，对磨损质量损失、摩擦系数、颗粒数量和质量浓度以及颗粒粒径分布进行了比较。利用扫描电子显微镜和能量色散x射线光谱学对衬垫和圆盘的磨损表面进行了分析。结果表明，与其他涂层和商业参考相比，碳化钨增强激光熔覆涂层具有最低的磨损和颗粒数浓度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.