汽车制动器产生的气载微粒物质动力学调查：制动盘材料对制动器排放系数的影响

IF 3.1 3区工程技术 Q2 ENGINEERING, MECHANICAL

Lubricants Pub Date : 2023-12-11 DOI:10.3390/lubricants11120526

Museob Jeong, Won Cheol Shin, Yoonsuk Oh, Jungju Lee, Seung Hun Huh, J. Pee, Hyungjo Seo, Ho Jang, Jong-Young Kim

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引用次数: 0

摘要

在这项工作中，我们使用功率测量法评估了灰铸铁（GCI）、渗氮（NC）和超硬陶瓷涂层（SCC）GCI 盘式转子对乘用车制动磨损可吸入颗粒物排放的影响。与 GCI 和 NC 相比，SCC 的制动排放系数（BEF）大大降低了 1/5 以上，适用于低钢和非钢摩擦材料。表面拓扑和微观结构分析证实，与 SCC 相比，NC 转子的磨损更为严重，磨损轨迹上的大凹坑就是证明。对空气中可吸入颗粒物的粒度分类分析表明，源自 GCI 盘的微米级颗粒减少是 SCC 硬度增加导致 BEF 降低的原因。

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Dynamometric Investigation on Airborne Particulate Matter from Automobile Brake: Impact of Disc Materials on Brake Emission Factor

In this work, we evaluated the impact of disc rotors of gray cast iron (GCI), nitrocarburized (NC), and superhard ceramic-coated (SCC) GCI on the brake wear PM emissions of passenger vehicles using dynamometric measurements. The brake emission factor (BEF) of the SCC was greatly reduced by more than a factor of 1/5 compared with those for the GCI and NC for both low-steel and non-steel friction materials. Surface topological and microstructural analyses confirmed that more severe wear was pronounced for the NC rotor compared with the SCC, as evidenced by large concave pits in the wear tracks. Analysis of the size-classified airborne PM suggests that reduced micron-sized particles, which originated from the GCI disc, were responsible for the lower BEF due to the increased hardness of the SCC.

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来源期刊

Lubricants Engineering-Mechanical Engineering

CiteScore

3.60

自引率

25.70%

发文量

293

审稿时长

11 weeks

期刊介绍： This journal is dedicated to the field of Tribology and closely related disciplines. This includes the fundamentals of the following topics: -Lubrication, comprising hydrostatics, hydrodynamics, elastohydrodynamics, mixed and boundary regimes of lubrication -Friction, comprising viscous shear, Newtonian and non-Newtonian traction, boundary friction -Wear, including adhesion, abrasion, tribo-corrosion, scuffing and scoring -Cavitation and erosion -Sub-surface stressing, fatigue spalling, pitting, micro-pitting -Contact Mechanics: elasticity, elasto-plasticity, adhesion, viscoelasticity, poroelasticity, coatings and solid lubricants, layered bonded and unbonded solids -Surface Science: topography, tribo-film formation, lubricant–surface combination, surface texturing, micro-hydrodynamics, micro-elastohydrodynamics -Rheology: Newtonian, non-Newtonian fluids, dilatants, pseudo-plastics, thixotropy, shear thinning -Physical chemistry of lubricants, boundary active species, adsorption, bonding