Anticorrosive magnesium phosphate coating on AZ31 magnesium alloy

Takahiro Ishizaki, Ichinori Shigematsu, Naobumi Saito

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

A novel anticorrosive film with a thickness of approximately 50 μm was successfully coated on an AZ31 magnesium alloy by chemical and low-heat treatments (50 °C). The film was a single-phase system of newberyite (MgHPO4•3H2O) having an orthorhombic crystal structure. The corrosion current density of the newberyite film coated on the AZ31 magnesium alloy decreased by more than two orders of magnitude as compared to that of the AZ31 magnesium alloy. The static water contact angle of the newberyite film was less than 10°. The average value of the scratch critical load for the newberyite coating was estimated to be approximately 15 mN.

Original languageEnglish
Pages (from-to)2288-2291
Number of pages4
JournalSurface and Coatings Technology
Volume203
Issue number16
DOIs
Publication statusPublished - 2009 May 30
Externally publishedYes

Fingerprint

Phosphate coatings
magnesium alloys
Magnesium alloys
Magnesium
magnesium
phosphates
coatings
Contact angle
corrosion
heat treatment
Current density
Crystal structure
Heat treatment
Corrosion
current density
Coatings
crystal structure
magnesium phosphate
Water
water

Keywords

  • Coating
  • Corrosion
  • Magnesium alloys
  • Newberyite

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Anticorrosive magnesium phosphate coating on AZ31 magnesium alloy. / Ishizaki, Takahiro; Shigematsu, Ichinori; Saito, Naobumi.

In: Surface and Coatings Technology, Vol. 203, No. 16, 30.05.2009, p. 2288-2291.

Research output: Contribution to journalArticle

Ishizaki, Takahiro ; Shigematsu, Ichinori ; Saito, Naobumi. / Anticorrosive magnesium phosphate coating on AZ31 magnesium alloy. In: Surface and Coatings Technology. 2009 ; Vol. 203, No. 16. pp. 2288-2291.
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