The effect of shot peening on corrosion performance of anodized laser powder bed fusion manufactured AlSi10Mg
|Author:||Rautio, T.1; Hamada, A.1; Kumpula, J.1;|
1Kerttu Saalasti Institute, University of Oulu, Pajatie 5, 85500 Nivala, Finland
|Online Access:||PDF Full Text (PDF, 2.4 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2022112466767
|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.
IOP conference series. Materials science and engineering
The international conference on materials research and innovation (ICMARI 2021) 15/12/2021 - 17/12/2021 Bangkok, Thailand
International conference on materials research and innovation
|Type of Publication:||
A4 Article in conference proceedings
|Field of Science:||
216 Materials engineering
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.
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