Microstructures and corrosion resistance of magnesium implanted with nitrogen ions

Citation
S. Fukumoto et al., Microstructures and corrosion resistance of magnesium implanted with nitrogen ions, MATER TRANS, 42(7), 2001, pp. 1232-1236
Citations number
10
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Material Science & Engineering
Journal title
MATERIALS TRANSACTIONS
ISSN journal
1345-9678 → ACNP
Volume
42
Issue
7
Year of publication
2001
Pages
1232 - 1236
Database
ISI
SICI code
1345-9678(200107)42:7<1232:MACROM>2.0.ZU;2-J
Abstract
The influence of the nitrogen ion implantation on the corrosion resistance of magnesium has been studied. The nitrogen solid solution and Mg3N2 were d etected by the grazing incidence X-ray diffraction analysis. TEM observatio ns revealed the morphology of Mg3N2 and cavities in magnesium matrix. Anodi c polarization measurements showed that implantation with 1 x 10(21) N-2(+) /m(2) at 150 keV greatly reduce the current density at all applied voltage. The higher accelerating voltage showed better corrosion resistance. The am ount of Mg3N2 was increased with increasing dose resulting in the degradati on of corrosion resistance. The corrosion resistance of implanted specimen was also degraded by annealing.