Abstract
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.
Highlights
Magnesium alloys are widely used in many fields because of their light weight, good damping capacity, and recycling potential [1,2,3]
AM60 magnesium alloy is implanted with Ti, Ni, as well Ti/Ni
AM60 magnesium alloy plates with dimensions of 15 mm × 15 mm × 2 mm were ground with SiC paper up to 2000# and ultrasonically cleaned in alcohol for 5 min
Summary
Magnesium alloys are widely used in many fields because of their light weight, good damping capacity, and recycling potential [1,2,3]. Ion implantations have been conducted on Mg alloys to improve the surface properties [17,22] Some duplex coatings such as Ti/N [23,24], Al/N [25], Zr/N [26] and Cr/O [27] have been investigated. AZ31 Mg Alloy samples with N and Ti duplex ion implantation possess a significantly improved corrosion resistance. The corrosion resistance of the Mg alloy sample is improved following dual ion implantation. AM60 magnesium alloy is implanted with Ti, Ni, as well Ti/Ni. The corrosion and wear properties of the various samples were studied in detail and the mechanism was investigated with the aid of first-principles calculation
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