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题名: Electroless Ni-P plating with a phytic acid pretreatment on AZ91D magnesium alloy
作者: X. F. Cui;  G. Jin;  Q. F. Li;  Y. Y. Yang;  Y. Li;  F. H. Wang
发表日期: 2010
摘要: A phytic acid conversion film with especial functional groups was proposed as the pretreatment layer between Ni-P coating and AZ91D magnesium alloy substrate, to replace the traditional pretreatment. In the process, the silane coupling agent was adopted as connector between conversion film and palladium ion with catalysis. The microstructure of the phytic acid conversion coatings was observed using scanning electronic microscopy, while the composition and functional groups were analyzed by energy dispersive spectrometer and Fourier transform infrared spectroscopy. The bonding between Si-OH of the silane coupling agent and hydroxyl of phytic acid was validated by X-ray photoelectron spectroscopy, and the existence of palladium ion was also verified. The subsequent Ni-P deposited on the layer was also characterized by its structure, morphology, and corrosion resistance. The results show that the Ni-P coatings with the phytic acid pretreatment on AZ91D magnesium alloy have good corrosion resistance. (C) 2010 Elsevier B.V. All rights reserved.
KOS主题词: Magnesium alloys;  Phytic acid;  Electroless nickel plating;  coupling agent;  CONVERSION COATINGS;  Degradation (chemical);  Microstructure;  Nanoparticles;  Performance;  Technology;  Composites;  Composite materials;  sedimentation;  Behavior;  Layer
刊名: Materials Chemistry and Physics
相关网址: <Go to ISI>://WOS:000276938100054
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Recommended Citation:
X. F. Cui,G. Jin,Q. F. Li,et al. Electroless Ni-p Plating With A Phytic Acid Pretreatment On Az91d Magnesium Alloy[J]. Materials Chemistry And Physics,2010,121(1-2):308-313.

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