Influence of heat treatments on the corrosion mechanism of additive manufactured AlSi10Mg

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Samenvatting

This study focuses on the effect of heat treatments on the microstructure and corrosion behaviour of additive manufactured AlSi10Mg specimens. Non heat treated, artificially aged and stress released specimens were studied. The microstructure showed an evolution from cellular aluminium cells surrounded by a 3D network of fibrous eutectic silicon phase to coarse separated silicon particles. The corrosion behaviour was found to change with the heat treatments. Untreated and artificially aged specimens showed superficial corrosion attacks with microcrack formation while stress released specimens showed penetrating attacks without microcrack formation. Mechanisms were proposed for the microstructure evolution and the different corrosion behaviours.

Originele taal-2English
Pagina's (van-tot)406-415
Aantal pagina's10
TijdschriftCorrosion Science
Volume147
DOI's
StatusPublished - 1 feb 2019

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