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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:, 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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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:// 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

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