Tribology and Airborne Particle Emission of Laser-Cladded Fe-Based Coatings versus Non-Asbestos Organic and Low-Metallic Brake Materials

Laser cladding is a promising surface treatment for refurbishing worn-out cast-iron brake rotors. Previous studies on laser-cladded brake rotors have demonstrated their extensively higher wear and greater airborne particle emissions, compared with traditional cast iron rotors. In order to overcome t...

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Autores principales:	Yezhe Lyu, Mara Leonardi, Alessandro Mancini, Jens Wahlström, Ulf Olofsson
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	laser cladding airborne particle emission non-asbestos organic low-metallic brake pad Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/ed3a681a9d654929be31cc14d7cb5367
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spelling	oai:doaj.org-article:ed3a681a9d654929be31cc14d7cb53672021-11-25T18:21:20ZTribology and Airborne Particle Emission of Laser-Cladded Fe-Based Coatings versus Non-Asbestos Organic and Low-Metallic Brake Materials10.3390/met111117032075-4701https://doaj.org/article/ed3a681a9d654929be31cc14d7cb53672021-10-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1703https://doaj.org/toc/2075-4701Laser cladding is a promising surface treatment for refurbishing worn-out cast-iron brake rotors. Previous studies on laser-cladded brake rotors have demonstrated their extensively higher wear and greater airborne particle emissions, compared with traditional cast iron rotors. In order to overcome this, a commercial non-asbestos organic (NAO) brake material is tested against Fe-based laser-cladded and traditional cast-iron brake rotors. Two low-metallic brake pad materials are also tested as references. The materials’ coefficients of friction, specific wear rates and particle number concentrations are evaluated. The results indicate that the NAO brake material showed lower wear and had fewer particle emissions than the low-metallic brake materials when deployed against both cast iron and laser-cladded brake rotors. The NAO/laser-cladding friction pairing showed wear, particle concentration and fraction of fine particles (sub 1 μm) equivalent to those of the low-metallic/cast-iron friction pairing, creating significant potential for application in refurbishing worn-out cast-iron brake rotors.Yezhe LyuMara LeonardiAlessandro ManciniJens WahlströmUlf OlofssonMDPI AGarticlelaser claddingairborne particle emissionnon-asbestos organiclow-metallic brake padMining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1703, p 1703 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	laser cladding airborne particle emission non-asbestos organic low-metallic brake pad Mining engineering. Metallurgy TN1-997
spellingShingle	laser cladding airborne particle emission non-asbestos organic low-metallic brake pad Mining engineering. Metallurgy TN1-997 Yezhe Lyu Mara Leonardi Alessandro Mancini Jens Wahlström Ulf Olofsson Tribology and Airborne Particle Emission of Laser-Cladded Fe-Based Coatings versus Non-Asbestos Organic and Low-Metallic Brake Materials
description	Laser cladding is a promising surface treatment for refurbishing worn-out cast-iron brake rotors. Previous studies on laser-cladded brake rotors have demonstrated their extensively higher wear and greater airborne particle emissions, compared with traditional cast iron rotors. In order to overcome this, a commercial non-asbestos organic (NAO) brake material is tested against Fe-based laser-cladded and traditional cast-iron brake rotors. Two low-metallic brake pad materials are also tested as references. The materials’ coefficients of friction, specific wear rates and particle number concentrations are evaluated. The results indicate that the NAO brake material showed lower wear and had fewer particle emissions than the low-metallic brake materials when deployed against both cast iron and laser-cladded brake rotors. The NAO/laser-cladding friction pairing showed wear, particle concentration and fraction of fine particles (sub 1 μm) equivalent to those of the low-metallic/cast-iron friction pairing, creating significant potential for application in refurbishing worn-out cast-iron brake rotors.
format	article
author	Yezhe Lyu Mara Leonardi Alessandro Mancini Jens Wahlström Ulf Olofsson
author_facet	Yezhe Lyu Mara Leonardi Alessandro Mancini Jens Wahlström Ulf Olofsson
author_sort	Yezhe Lyu
title	Tribology and Airborne Particle Emission of Laser-Cladded Fe-Based Coatings versus Non-Asbestos Organic and Low-Metallic Brake Materials
title_short	Tribology and Airborne Particle Emission of Laser-Cladded Fe-Based Coatings versus Non-Asbestos Organic and Low-Metallic Brake Materials
title_full	Tribology and Airborne Particle Emission of Laser-Cladded Fe-Based Coatings versus Non-Asbestos Organic and Low-Metallic Brake Materials
title_fullStr	Tribology and Airborne Particle Emission of Laser-Cladded Fe-Based Coatings versus Non-Asbestos Organic and Low-Metallic Brake Materials
title_full_unstemmed	Tribology and Airborne Particle Emission of Laser-Cladded Fe-Based Coatings versus Non-Asbestos Organic and Low-Metallic Brake Materials
title_sort	tribology and airborne particle emission of laser-cladded fe-based coatings versus non-asbestos organic and low-metallic brake materials
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ed3a681a9d654929be31cc14d7cb5367
work_keys_str_mv	AT yezhelyu tribologyandairborneparticleemissionoflasercladdedfebasedcoatingsversusnonasbestosorganicandlowmetallicbrakematerials AT maraleonardi tribologyandairborneparticleemissionoflasercladdedfebasedcoatingsversusnonasbestosorganicandlowmetallicbrakematerials AT alessandromancini tribologyandairborneparticleemissionoflasercladdedfebasedcoatingsversusnonasbestosorganicandlowmetallicbrakematerials AT jenswahlstrom tribologyandairborneparticleemissionoflasercladdedfebasedcoatingsversusnonasbestosorganicandlowmetallicbrakematerials AT ulfolofsson tribologyandairborneparticleemissionoflasercladdedfebasedcoatingsversusnonasbestosorganicandlowmetallicbrakematerials
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Tribology and Airborne Particle Emission of Laser-Cladded Fe-Based Coatings versus Non-Asbestos Organic and Low-Metallic Brake Materials

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