Anodic oxidation and powder coating for corrosion protection of AM60B magnesium alloys

Abstract

In the present paper a protection process against corrosion for AM60B magnesium alloys is described. The coating consisted of an anodic oxide layer, obtained by microarc oxidation (MAO), covered with a powder coating layer. The MAO pretreatment improved the adhesion of the organic layer, which was responsible for the corrosion protection effect. The morphological and crystallographic structure of the anodic oxide was characterised by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Salt spray tests were carried out in order to assess the quality of the anodic oxide powder coating system.

Original language	English
Pages (from-to)	316-319
Number of pages	4
Journal	Transactions of the Institute of Metal Finishing
Volume	85
Issue number	6
DOIs	https://doi.org/10.1179/174591907X246465
Publication status	Published - Nov 2007
Externally published	Yes

Keywords

Corrosion protection
Magnesium alloys
Microarc oxidation
Powder painting

ASJC Scopus subject areas

Surfaces, Coatings and Films
Surfaces and Interfaces
Metals and Alloys

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10.1179/174591907X246465

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title = "Anodic oxidation and powder coating for corrosion protection of AM60B magnesium alloys",

abstract = "In the present paper a protection process against corrosion for AM60B magnesium alloys is described. The coating consisted of an anodic oxide layer, obtained by microarc oxidation (MAO), covered with a powder coating layer. The MAO pretreatment improved the adhesion of the organic layer, which was responsible for the corrosion protection effect. The morphological and crystallographic structure of the anodic oxide was characterised by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Salt spray tests were carried out in order to assess the quality of the anodic oxide powder coating system.",

keywords = "Corrosion protection, Magnesium alloys, Microarc oxidation, Powder painting",

author = "M. Bestetti and Cavallotti, {P. L.} and {Da Forno}, A. and S. Pozzi",

year = "2007",

month = nov,

doi = "10.1179/174591907X246465",

language = "English",

volume = "85",

pages = "316--319",

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AU - Bestetti, M.

AU - Cavallotti, P. L.

AU - Da Forno, A.

AU - Pozzi, S.

PY - 2007/11

Y1 - 2007/11

N2 - In the present paper a protection process against corrosion for AM60B magnesium alloys is described. The coating consisted of an anodic oxide layer, obtained by microarc oxidation (MAO), covered with a powder coating layer. The MAO pretreatment improved the adhesion of the organic layer, which was responsible for the corrosion protection effect. The morphological and crystallographic structure of the anodic oxide was characterised by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Salt spray tests were carried out in order to assess the quality of the anodic oxide powder coating system.

AB - In the present paper a protection process against corrosion for AM60B magnesium alloys is described. The coating consisted of an anodic oxide layer, obtained by microarc oxidation (MAO), covered with a powder coating layer. The MAO pretreatment improved the adhesion of the organic layer, which was responsible for the corrosion protection effect. The morphological and crystallographic structure of the anodic oxide was characterised by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Salt spray tests were carried out in order to assess the quality of the anodic oxide powder coating system.

KW - Corrosion protection

KW - Magnesium alloys

KW - Microarc oxidation

KW - Powder painting

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JO - Transactions of the Institute of Metal Finishing

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