Surface Properties of TiNi Alloy Treated by Micro-Arc Oxidation under Different Voltages

Li Hua Zhu; Xiao Jing Xu; Xiao Ya Niu; Ting Zhuo Chen; Min Liu

doi:10.4028/www.scientific.net/AMR.1053.21

Paper Titles

Preface

First Principle Calculation of Anti-Ferromagnetic Characteristics of Zn_0.875Co_0.125O
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Photoluminescence Properties of CaBi₄Ti₄O₁₅:Dy³⁺ for White Light-Emitting Diodes
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Preparation of Flake-Shaped Carbonyl Iron Powders Microwave Absorber and its Properties
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Surface Properties of TiNi Alloy Treated by Micro-Arc Oxidation under Different Voltages
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First-Order Phase Transition and Magnetocaloric Effect of MnFeP_0.63Ge_0.12Si_0.25 Compound
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Effect of Electro Deposition Parameters on Thickness and Fe Contents of Nickel-Iron Foam Alloys
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Preparation of Purity Al₂O₃for LED Sapphire Materials by Ammonium Aluminum Sulfate and its Performance
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1053Surface Properties of TiNi Alloy Treated by...

Surface Properties of TiNi Alloy Treated by Micro-Arc Oxidation under Different Voltages

Abstract:

The effects of micro-arc oxidation (MAO) voltage (370V, 400V, 420V) on the surface morphology, adhesion of film/substrate, corrosion resistance and fretting friction and wear properties after micro-arc oxidation and heat-treatment for 48h of TiNi alloy were investigated. The results show that, as the voltage gradually increases: (1) micro-arc oxidation coatings form, when the voltage increase to 420V, the coating shows a significant micro-arc oxidized porous characteristics; (2) the Ca/P ratio in the coatings also increases, so the Ca/P ratio can be controlled by adjusting the voltage of micro-arc oxidation; (3) the corrosion resistance of MAO coatings can be significantly improved by increasing the output voltage, the corrosion rate and the corrosion potential of 420V are smaller two magnitude than 370V’s; (4) the coating of 420V shows lower friction coefficient with higher resistance, narrower wear scar width; (5) the MAO coatings have formed different types of hydroxyapatite crystals (HA) after immersed in high temperature and pressure reactor for 48h, and the phase composition of the coating are mainly apatite.

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Periodical:

Advanced Materials Research (Volume 1053)

Pages:

21-29

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1053.21

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Online since:

October 2014

Authors:

Li Hua Zhu, Xiao Jing Xu, Xiao Ya Niu, Ting Zhuo Chen, Min Liu

Keywords:

Adhesion of Film/Substrate, Fretting Friction, Hydrothermal Treatment, Micro-Arc Oxidation, Surface Morphology, TiNi Alloy, Wear

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