Durable lubricant-infused coating on a magnesium alloy substrate with anti-biofouling and anti-corrosion properties and excellent thermally assisted healing ability

Nanoscale ◽  
2020 ◽  
Vol 12 (14) ◽  
pp. 7700-7711 ◽  
Author(s):  
Hao Li ◽  
Xiaolei Feng ◽  
Yujie Peng ◽  
Rongchang Zeng
Keyword(s):  
Magnesium Alloy ◽  
Superhydrophobic Surface ◽  
Mg Alloy ◽  
Corrosion Properties ◽  
Alloy Substrate ◽  
Slippery Surface ◽  
Self Cleaning

We fabricated both the superhydrophobic surface and the slippery surface on Mg alloy substrate by a facile method, and compared their self-cleaning, anti-corrosion and anti-biofouling properties as well as the thermally assisted healing ability.

Corrosion Performance of Nitrided Based Coating on AZ9I Mg Alloy in Hank’s Solution

2015 ◽  
Vol 819 ◽  
pp. 303-308 ◽  
Author(s):  
M.R. Zulkifli ◽  
Muhammad Zaimi ◽  
Jariah Mohamad Juoi ◽  
Zainab Mahamud
Keyword(s):  
Magnesium Alloy ◽  
Degradation Rate ◽  
Substrate Surface ◽  
The Body ◽  
Mg Alloy ◽  
Az91 Magnesium Alloy ◽  
Corrosion Properties ◽  
Working Pressure ◽  
Alloy Substrate ◽  
Hank’S Solution

The use of Magnesium alloys as bioresorsable metallic implant is interesting to study due to the properties of magnesium ions which can be found naturally in bone tissue as well as are essential to human metabolism. However, its fast degradation rate and excess of these ions in the body may cause undesirable health effects. Therefore, surface treatment such as coating can offer an alternative solution to slow down the fast degradation rate of magnesium alloy. Thus, in this study, attempt has been made to coat the AZ91 magnesium alloy substrate with TiN, AlN and TiAlBN coatings using single hot press target with r.f. magnetron sputtering technique. During deposition, target power, working pressure and bias voltage were optimized for each coating deposition. Coating microstructure and its crystal phases are analysed using SEM and glancing angle X-ray diffraction analysis (GAXRD). Corrosion properties were evaluated using potentiodynamic polarization using Hank’s Solution as a medium to simulate body fluid. Result showed that TiAlBN coating is acting most successfully as a protection layer by slowing down the penetration of corrosion towards AZ91 Mg alloy substrate. SEM micrographs show a minimum damage to the substrate’s surface seen after subjected to corrosion test. In conclusion, TiAlBN coating is able to protect AZ91 Mg alloy substrate surface from corrosion and able to slow down their degradation rate. The better performance of TiAlBN coating create interest to further works on exploring the potential of this hard coated on AZ91 Mg alloy for biomaterial application.

scholarly journals Fabrication of superhydrophobic surface with corrosion resistance via cyclic chemical etching process on aluminum substrate

2021 ◽  
Author(s):  
Shuwei Lv ◽  
Xinming Zhang ◽  
Xiaodong Yang ◽  
Xianli Liu ◽  
Zhuojuan Yang ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Superhydrophobic Surface ◽  
Chemical Etching ◽  
Aluminum Surface ◽  
Corrosion Properties ◽  
Water Contact ◽  
Simple Method ◽  
Corrosion Resistance Property ◽  
Self Cleaning ◽  
Ideal Method

Abstract Aluminum (Al) is a metal material commonly used in industry, but its surface is easily corroded. The superhydrophobic surface has great self-cleaning and anti-corrosion properties, and it is an ideal method to construct a functional aluminum surface. Here, a simple method based on cyclic chemical etching was proposed to achieve the superhydrophobic Al surface with honeycomb structures. The surface of the sample etched eight times comprised micro/nano-scale honeycomb cavities, while exhibiting a water contact angle (WCA) of 135°. After being treated with an octadecanethiol (C18H38S) methanol solution, this sample demonstrated a WCA of 153.1°. A self-cleaning test was performed on the superhydrophobic Al surface, showing the excellent self-cleaning property. Finally, the electrochemical anti-corrosion test demonstrated that the above-mentioned superhydrophobic Al surface had great corrosion resistance property. Overall, this work has enriched the theory and technology for fabricating aluminum to achieve superhydrophobic.

Anti-Corrosion Properties of Al-Based Coating on Magnesium Alloy Fabricated by Supersonic Particles Deposition

2013 ◽  
Vol 746 ◽  
pp. 524-528 ◽  
Author(s):  
Xiao Ming Wang ◽  
Sheng Zhu ◽  
Qing Chang ◽  
Xue Qiang Feng ◽  
Guo Feng Han
Keyword(s):  
Magnesium Alloy ◽  
Surface Morphology ◽  
Mass Gain ◽  
Alloy Coating ◽  
Corrosion Property ◽  
Corrosion Products ◽  
Corrosion Properties ◽  
Sem Observation ◽  
Alloy Substrate ◽  
Eds Analysis

In order to improve anti-corrosion property of magnesium alloy parts in equipment, Al-based alloy coating on ZM5 magnesium alloy was prepared by supersonic particles deposition (SPD). Mass gain after being corroded, surface morphology of samples corroded and corrosion products were investigated by salt-mist test, SEM observation and EDS analysis etc. The results indicated that the mass gain of Al-Si coating after being corroded decreased evidently compared with magnesium alloy substrate. Al-Si coatings with thickness above 0.5mm did not generate blisters after 500h salt-mist test, proving that the coating possessed excellent anti-corrosion property.

scholarly journals Fabrication of superhydrophobic surface with improved corrosion inhibition on AZ31B magnesium alloy substrate

2021 ◽  
Author(s):  
Maria SIMONOVA ◽  
Aleksey ABRASHOV ◽  
Nelya GRIGORYAN ◽  
Vladimir MEN’SHIKOV ◽  
Nikolay KHAZANOV
Keyword(s):  
Magnesium Alloy ◽  
Corrosion Inhibition ◽  
Superhydrophobic Surface ◽  
Az31b Magnesium Alloy ◽  
Alloy Substrate

scholarly journals Comparison of Corrosion Resistance and Cytocompatibility of MgO and ZrO2 Coatings on AZ31 Magnesium Alloy Formed via Plasma Electrolytic Oxidation

Coatings ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 441 ◽  
Author(s):  
Shimeng Wang ◽  
Lingxia Fu ◽  
Zhenggang Nai ◽  
Jun Liang ◽  
Baocheng Cao
Keyword(s):  
Corrosion Resistance ◽  
Phase Composition ◽  
Magnesium Alloy ◽  
Plasma Electrolytic Oxidation ◽  
Mg Alloy ◽  
Az31 Magnesium Alloy ◽  
Corrosion Properties ◽  
Az31 Mg Alloy ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

In this work, one coating is comprised of ZrO2 and the other consists of MgO as main phase composition was produced on AZ31 magnesium alloy using one-step plasma electrolytic oxidation (PEO). The purpose of this work was to study the corrosion resistance and cytocompatibility of the above-coated AZ31 magnesium alloys in order to provide a basis for AZ31 Mg alloy’s clinical applications of biomedical use. The morphology and phase composition of the coatings were studied using scanning electron microscopy (SEM) and X-ray diffraction (XRD). The corrosion properties were examined using electrochemical testing, hydrogen evolution measurements, and immersion tests in a simulated body fluid (SBF). Compared with bare magnesium and the MgO coating, the ZrO2-containing coating exhibited an improved corrosion resistance. Cell proliferation assays and cell morphology observations showed that the ZrO2-containing coating was not toxic to the L-929 cells. The ZrO2 coating was much denser and more homogeneous than the MgO coating, hence the corrosion resistance of the ZrO2-coated AZ31 Mg alloy was superior and more stable than the MgO-coated AZ31 Mg alloy, and ZrO2/AZ31 did not induce a cytotoxic reaction to L-929 cells and promote cell growth.

Nanocomposite TiAlBN Coatings as a Corrosion Protection Layer for AZ91 Mg Alloy Substrate in NaCl

2015 ◽  
Vol 819 ◽  
pp. 109-114 ◽  
Author(s):  
M.R. Zulkifli ◽  
Muhammad Zaimi ◽  
Jariah Mohamad Juoi ◽  
Zainab Mahamud
Keyword(s):  
Corrosion Resistance ◽  
Corrosion Protection ◽  
Mass Loss Rate ◽  
Mg Alloy ◽  
Hard Coating ◽  
Nacl Solution ◽  
Corrosion Properties ◽  
Alloy Substrate ◽  
Structural Application ◽  
Tin Coatings

Magnesium alloys create increasing interest in structural application where weight reduction is vast concern. However, one of magnesium drawback in various applications is low corrosion resistance. In general, a hard coating can be applied on metal to combat such a problem. AlN and TiN coatings are most widely utilized in manufacturing area i.e for structural application due to its high hardness, high chemical stability, and excellent adhesion to substrates. Most recent, TiAlBN coating catch many attentions due to its superior properties than other most studied hard coating. The incorporation of aluminium in the cubic face centered TiN structure on Ti sites leads to deformation and strengthening of the crystal structure of the coating together. Moreover, incorporation of BN in this coating should improve and enhanced the corrosion resistance of Mg alloy. Therefore, in this study, TiAlBN coating have been chosen to be deposited on Mg alloy using reactive magnetron sputtering together with AlN and TiN coatings for comparison study. During depositions, target power, working pressure and bias voltage are optimized for each coating. Analysis on the effect of AlN, TiN and TiAlBN coatings on Mg alloy substrate include thickness measurement and microstructure by scanning electron microscope (SEM). Coatings phase were analysed using glancing angle X-ray diffraction analysis (GAXRD) and corrosion properties were evaluated using potentiodynamic polarization in NaCl solution. TiAlBN shows better performance of corrosion protection with the least corrosion rate (penetration rate = 0.20 mm/yr; mass loss rate=0.97g/m2d) in sodium chloride (NaCl) solution although having the lowest coating thickness (412 nm).

Sign in / Sign up

Export Citation Format

Share Document