マグネシウムダイカストAZ91Dの化成処理および陽極酸化により生成した皮膚の組成と形態 [in Japanese] Composition and Morphology of Surface Films Coated by Chemical Conversion and Anodic Oxidation on Magnesium Die Cast AZ91D [in Japanese]
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The Morphology and composition of surfaces and cross sections of films formed by chemical conversion and anodic oxidation on Magnesium Die Cast AZ 91D were studied by Electron Probe Microanalysis (EPMA), X-Ray Diffractometery and X-ray Photoelectron Spectroscopy. The major constituents of the chemical conversion coated film are Cr, O and Mg. It is assumed that Cr(OH)<sub>3</sub> is formed at the film/substrate interface and subsequently converted to microcrystalline Cr<sub>2</sub>O<sub>3</sub> with film growth. The components of anodic oxide films are well-crystallized Cr<sub>2</sub>O<sub>3</sub>, MgF<sub>2</sub> and NaMgF<sub>3</sub>. These substances occer as relatively homogeneous film.
- Jitsumu Hyomen Gijutsu
Jitsumu Hyomen Gijutsu 48(3), 349-354, 1997-03-01
The Surface Finishing Society of Japan