Energy-efficient PEO process of aluminium alloys

Matykina, E.; Arrabal, R.; Pardo, A.; Mohedano, M.; Mingo, B.; Rodriguez, I.; Gonzalez, J.

Journalpaper

Energy-efficient PEO process of aluminium alloys

Abstract

The influence of pre-anodising in sulphuric and phosphoric acids on energy efficiency of voltage-controlled PEO process of three commercial wrought and cast aluminium alloys (AA1050, AA6082 and A356) has been investigated. The precursor anodic porous films enable up to 57% energy savings during PEO and produce ~35–40% increase of the coating microhardness compared with direct PEO. Total specific energy consumption values of 2.5–2.7 kW h m−2 µm−1 and 3.1–3.8 kW h m−2 µm−1 were achieved using phosphoric and sulphuric acid-formed precursors, respectively.

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URL: https://publications.hereon.de/id/32554/
Authors:Matykina, E., Arrabal, R., Pardo, A., Mohedano, M., Mingo, B., Rodriguez, I., Gonzalez, J.
Year:2014
In: Materials Letters
Volume:127
Pages:13 - 16
Publisher:Elsevier
Type:Journalpaper
ISSN: 0167-577X
Cite as: Matykina, E.; Arrabal, R.; Pardo, A.; Mohedano, M.; Mingo, B.; Rodriguez, I.; Gonzalez, J.: Energy-efficient PEO process of aluminium alloys. In: Materials Letters. Vol. 127 (2014) 13 - 16. (DOI: 10.1016/j.matlet.2014.04.077)