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Laser Surface Modification of Aluminium Alloy AlMg9 with B(4)C Powder

This paper presents the effects of laser treatment (fiber laser YLS-4000) on the microstructure and selected mechanical properties of the surface layer of AlMg (AlMg9) foundry alloy obtained by alloying with boron carbide (B(4)C). The correlation between laser alloying process parameters and selecte...

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Autores principales: Sroka, Marek, Jonda, Ewa, Pakieła, Wojciech
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7014371/
https://www.ncbi.nlm.nih.gov/pubmed/31952286
http://dx.doi.org/10.3390/ma13020402
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author Sroka, Marek
Jonda, Ewa
Pakieła, Wojciech
author_facet Sroka, Marek
Jonda, Ewa
Pakieła, Wojciech
author_sort Sroka, Marek
collection PubMed
description This paper presents the effects of laser treatment (fiber laser YLS-4000) on the microstructure and selected mechanical properties of the surface layer of AlMg (AlMg9) foundry alloy obtained by alloying with boron carbide (B(4)C). The correlation between laser alloying process parameters and selected properties of the formed layer was discussed. The studies were supported by microstructural analysis of the remelted zone (RZ), heat affected zone (HAZ), undissolved carbide particles, substrate material, and precipitates formed during rapid solidification. Metallographic investigations of the laser-treated layer were performed using optical microscopy and scanning electron microscopy (SEM). The elemental composition and a detailed analysis of chemical composition in micro-areas were carried out using energy dispersive X-ray spectroscopy (EDS). The remelting thickness, heat-affected zone (HAZ), and amount of base material in surface layers were determined. Microhardness tests were performed on transverse cross-sections of the remelted zone to obtain the hardness profiles in the base material (BM), remelted zone (RZ), and heat affected zone (HAZ). The hardness, roughness, and wear resistance measurements showed that the highest tribological properties of the obtained surface layer were achieved using 0.5 Bar protective gas (Ar) during alloying with B(4)C powder.
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spelling pubmed-70143712020-03-09 Laser Surface Modification of Aluminium Alloy AlMg9 with B(4)C Powder Sroka, Marek Jonda, Ewa Pakieła, Wojciech Materials (Basel) Article This paper presents the effects of laser treatment (fiber laser YLS-4000) on the microstructure and selected mechanical properties of the surface layer of AlMg (AlMg9) foundry alloy obtained by alloying with boron carbide (B(4)C). The correlation between laser alloying process parameters and selected properties of the formed layer was discussed. The studies were supported by microstructural analysis of the remelted zone (RZ), heat affected zone (HAZ), undissolved carbide particles, substrate material, and precipitates formed during rapid solidification. Metallographic investigations of the laser-treated layer were performed using optical microscopy and scanning electron microscopy (SEM). The elemental composition and a detailed analysis of chemical composition in micro-areas were carried out using energy dispersive X-ray spectroscopy (EDS). The remelting thickness, heat-affected zone (HAZ), and amount of base material in surface layers were determined. Microhardness tests were performed on transverse cross-sections of the remelted zone to obtain the hardness profiles in the base material (BM), remelted zone (RZ), and heat affected zone (HAZ). The hardness, roughness, and wear resistance measurements showed that the highest tribological properties of the obtained surface layer were achieved using 0.5 Bar protective gas (Ar) during alloying with B(4)C powder. MDPI 2020-01-15 /pmc/articles/PMC7014371/ /pubmed/31952286 http://dx.doi.org/10.3390/ma13020402 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Sroka, Marek
Jonda, Ewa
Pakieła, Wojciech
Laser Surface Modification of Aluminium Alloy AlMg9 with B(4)C Powder
title Laser Surface Modification of Aluminium Alloy AlMg9 with B(4)C Powder
title_full Laser Surface Modification of Aluminium Alloy AlMg9 with B(4)C Powder
title_fullStr Laser Surface Modification of Aluminium Alloy AlMg9 with B(4)C Powder
title_full_unstemmed Laser Surface Modification of Aluminium Alloy AlMg9 with B(4)C Powder
title_short Laser Surface Modification of Aluminium Alloy AlMg9 with B(4)C Powder
title_sort laser surface modification of aluminium alloy almg9 with b(4)c powder
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7014371/
https://www.ncbi.nlm.nih.gov/pubmed/31952286
http://dx.doi.org/10.3390/ma13020402
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