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Open AccessArticle

Effects of Ti, Ni, and Dual Ti/Ni Plasma Immersion Ion Implantation on the Corrosion and Wear Properties of Magnesium Alloy

1
School of Automotive Engineering, Changshu Institute of Technology, Changshu 215500, China
2
Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Kowloon 999077, China
3
School of Mechanical Engineering, Guilin University of Aerospace Technology, Guilin 541004, China
*
Authors to whom correspondence should be addressed.
Coatings 2020, 10(4), 313; https://doi.org/10.3390/coatings10040313
Received: 4 March 2020 / Revised: 17 March 2020 / Accepted: 23 March 2020 / Published: 26 March 2020
(This article belongs to the Section Plasma Coatings, Surfaces & Interfaces)
Ti, Ni, and Ti/Ni plasma immersion ion implantation is carried out on the AM60 magnesium alloy with a 6 × 1016 ions/cm2 fluence and energy of 35 keV. The corrosion and wear properties of the ion-implanted samples are determined systematically by X-ray photoelectron spectroscopy, X-ray diffraction, scanning electron microscopy, electrochemical methods and wear tests. A Ni-rich layer composed of α-Mg, Ni2O3, and NiTi2 is formed on the surface after dual Ti/Ni ion implantation, and the ion implantation range is approximately 300 nm. The corrosion resistance of the Ni- and Ti/Ni-implanted AM60 samples is significantly reduced in the 3.5% NaCl solution. However, NiTi2 does not adhere well to the grinding ring during the wear test due to the bonding properties, and the sample implanted with both Ti and Ni shows the best wear resistance.
Keywords: magnesium alloy; plasma ion implantation; Ti/Ni coatings; corrosion resistance; wear resistance magnesium alloy; plasma ion implantation; Ti/Ni coatings; corrosion resistance; wear resistance
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MDPI and ACS Style

Dai, J.; Liu, Z.; Yu, B.; Ruan, Q.; Chu, P.K. Effects of Ti, Ni, and Dual Ti/Ni Plasma Immersion Ion Implantation on the Corrosion and Wear Properties of Magnesium Alloy. Coatings 2020, 10, 313.

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