Wear behavior of a heat-treatable Al-3.5Cu-1.5 Mg-1Si alloy manufactured by selective laser melting

Wang, Pei, Lei, Yang, Qi, Jun-Fang, Yu, Si-Jie, Setchi, Rossitza ORCID: https://orcid.org/0000-0002-7207-6544, Wu, Ming-Wei, Eckert, Jürgen, Li, Hai-Chao and Scudino, Sergio 2021. Wear behavior of a heat-treatable Al-3.5Cu-1.5 Mg-1Si alloy manufactured by selective laser melting. Materials 14 (22) , 7048. 10.3390/ma14227048

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Abstract

In this study, the wear behavior of a heat-treatable Al-7Si-0.5Mg-0.5Cu alloy fabricated by selective laser melting was investigated systematically. Compared with the commercial homogenized AA2024 alloy, the fine secondary phase of the SLM Al-Cu-Mg-Si alloy leads to a low specific wear rate (1.8 ± 0.11 × 10−4 mm3(Nm)−1) and a low average coefficient of friction (0.40 ± 0.01). After the T6 heat treatment, the SLM Al-Cu-Mg-Si alloy exhibits a lower specific wear rate (1.48 ± 0.02 × 10−4 mm3(Nm)−1), but a similar average coefficient of friction (0.34 ± 0.01) as the heat-treated AA2024 alloy. Altogether, the SLM Al-3.5Cu-1.5Mg-1Si alloy is suitable for the achievement of not only superior mechanical performance, but also improved tribological properties.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Additional Information:	This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/)
Publisher:	MDPI
ISSN:	1996-1944
Funders:	N/A
Date of First Compliant Deposit:	22 November 2021
Date of Acceptance:	16 November 2021
Last Modified:	06 Jul 2023 16:29
URI:	https://orca.cardiff.ac.uk/id/eprint/145666

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