University of Oulu

T Rautio et al 2022 IOP Conf. Ser.: Mater. Sci. Eng. 1234 012035

The effect of shot peening on corrosion performance of anodized laser powder bed fusion manufactured AlSi10Mg

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Author: Rautio, T.1; Hamada, A.1; Kumpula, J.1;
Organizations: 1Kerttu Saalasti Institute, University of Oulu, Pajatie 5, 85500 Nivala, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 2.4 MB)
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Language: English
Published: IOP Publishing, 2022
Publish Date: 2022-11-24


Anodizing is commonly used on aluminium to improve the surface properties of the product for better corrosion resistance and wear resistance. In this research, the anodizing of laser powder bed fusion (LPBF) manufactured AlSi10Mg parts which were subjected to prior shot peening (SP) were investigated. Anodized specimens were analysed using SEM imaging and the corrosion properties were examined considering the effect of residual stress relief heat treatment and the SP process. The results showed that the SP deteriorates the corrosion performance of the material as such, but together with the subsequent anodizing it resulted to the lowest corrosion current of all investigated structures. As the SP can be used to lower the surface roughness of the LPBF parts and to increase fatigue life as well, the results of this work further encourage the use of SP with anodizing.

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Series: IOP conference series. Materials science and engineering
ISSN: 1757-8981
ISSN-E: 1757-899X
ISSN-L: 1757-8981
Volume: 1234
Article number: 012035
DOI: 10.1088/1757-899x/1234/1/012035
Host publication: The international conference on materials research and innovation (ICMARI 2021) 15/12/2021 - 17/12/2021 Bangkok, Thailand
Conference: International Conference on Materials Research and Innovation
Type of Publication: A4 Article in conference proceedings
Field of Science: 216 Materials engineering
Funding: The authors would like to acknowledge the financial support received from the Council of Oulu Region and the European Union (European Regional Development Fund) for the “Hybridi” and M3D projects.
Copyright information: Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd.