Microstructural, mechanical properties and corrosion behavior of plasma sprayed NiCrAlY/nano-YSZ duplex coating on Mg–1.2Ca–3Zn alloy
Source abstract
Abstract
Abstract In this study, microstructural evolution, mechanical properties and corrosion behavior of plasma sprayed NiCrAlY/nano-yttria stabilized zirconia (nano-YSZ) dual-layered coating on Mg–1.2Ca–3Zn alloy were investigated. NiCrAlY underlayer is composed of large amount of porosities and micro-cracks with thickness around 80–90 μm. However, nano-YSZ overlayer shows bimodal microstructure consisting of columnar grains and some partially molten parts of the nanostructured powders with thickness around 270–300 μm. The microhardness of dual-layered NiCrAlY/nano-YSZ coating is significantly higher than that of single-layered NiCrAlY. Despite that, the bonding strength of dual-layered coating is slightly higher than single-layered plasma sprayed coating. Results also showed that both single-layer NiCrAlY and dual-layer NiCrAlY/nano-YSZ coatings decreased the corrosion current density of Mg alloy from 217.1 μA/cm 2 to 114.5 and 82.4 µA/cm 2 , respectively.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · High-Temperature Coating Behaviors · Corrosion Behavior and Inhibition
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (28)
Show source-provided references
1. Experimental study of electrochemical corrosion behaviour of bilayer on AZ31B Mg alloy10.1016/j.corsci.2010.08.017 ↗
2. Evaluation of corrosion resistance of magnesium alloy ZK10 coated with hybrid organic–inorganic film including containers10.1016/j.corsci.2012.08.052 ↗
3. Corrosion behaviour of thermally sprayed Al and Al/SiCp composite coatings on ZE41 magnesium alloy in chloride medium10.1016/j.corsci.2009.10.040 ↗
4. Synthesis and biodegradation evaluation of nano-Si and nano-Si/TiO2 coatings on biodegradable Mg–Ca alloy in simulated body fluid10.1016/j.ceramint.2014.05.126 ↗
5. Atmospheric plasma sprayed silica–hydroxyapatite coatings on magnesium alloy substrates10.1016/j.ceramint.2015.01.041 ↗
6. Effect of mechanical alloying on the phase evolution, microstructure and bio-corrosion properties of a Mg/HA/TiO2/MgO nanocomposite10.1016/j.ceramint.2014.08.039 ↗
7. In vitro degradation, hemolysis, and cytocompatibility of PEO/PLLA composite coating on biodegradable AZ31 alloy10.1002/jbm.b.33208 ↗
8. Comparison of hot corrosion behaviors of plasma-sprayed nanostructured and conventional YSZ thermal barrier coatings exposure to molten vanadium pentoxide and sodium sulfate10.1016/j.jeurceramsoc.2013.08.006 ↗
9. Preparation and characterization of 8YSZ thermal barrier coatings on rare earth-magnesium alloy10.1007/s11666-011-9616-2 ↗
10. Preparation and bond properties of thermal barrier coatings on Mg alloy with sprayed Al or diffused Mg–Al intermetallic interlayer10.1007/s11666-013-9985-9 ↗
11. Bi-layer nano-TiO2/FHA composite coatings on Mg–Zn–Ce alloy prepared by combined physical vapour deposition and electrochemical deposition methods10.1016/j.vacuum.2014.08.013 ↗
12. Critical assessment and thermodynamic modeling of Mg–Ca–Zn system supported by key experiments10.1016/j.calphad.2014.03.003 ↗
13. Experimental study of the Ca–Mg–Zn system using diffusion couples and key alloys10.1088/1468-6996/12/2/025003 ↗
14. In-vitro corrosion inhibition mechanism of fluorine-doped hydroxyapatite and brushite coated Mg–Ca alloys for biomedical applications10.1016/j.ceramint.2013.12.147 ↗
15. The influence of laser treatment on thermal shock resistance of plasma-sprayed nanostructured yttria stabilized zirconia thermal barrier coatings10.1016/j.ceramint.2013.06.008 ↗
16. Spray drying of nanometric SYSZ powders to obtain plasma sprayable nanostructured granules10.1016/j.ceramint.2013.05.062 ↗
17. Microstructure, mechanical properties and thermal shock resistance of plasma sprayed nanostructured zirconia coatings10.1016/j.ceramint.2011.04.024 ↗
18. Microstructural, mechanical and tribological properties of nanostructured YSZ coatings produced with different APS process parameters10.1016/j.ceramint.2015.03.148 ↗
19. Thermal spray coatings engineered from nanostructured ceramic agglomerated powders for structural, thermal barrier and biomedical applications: a review10.1007/s11666-006-9010-7 ↗
20. Structure and thermal properties of heat treated plasma sprayed ceria–yttria co-stabilized zirconia coatings10.1016/j.ceramint.2009.10.020 ↗
21. Oxidation behavior of thermal barrier coatings with HVOF and detonation-sprayed NiCrAlY bondcoats10.1016/j.corsci.2008.02.002 ↗
22. Bimodal distribution of mechanical properties on plasma sprayed nanostructured partially stabilized zirconia10.1016/S0921-5093(01)01530-1 ↗
23. Microstructure and indentation mechanical properties of plasma sprayed nano-bimodal and conventional ZrO2–8wt%Y2O3 thermal barrier coatings10.1016/j.vacuum.2011.10.029 ↗
24. Modification of microstructure and electrical conductivity of plasma-sprayed YSZ deposit through post-densification process10.1016/j.msea.2006.04.104 ↗
25. Investigation of the bond coats for thermal barrier coatings on Mg alloy10.1016/j.apsusc.2012.10.192 ↗
26. The effect of interlayer on corrosion resistance of ceramic coating/Mg alloy substrate in simulated physiological environment10.1016/j.surfcoat.2012.05.088 ↗
27. Corrosion and mechanical performance of double-layered nano-Al/PCL coating on Mg−Ca−Bi alloy10.1016/j.vacuum.2015.04.039 ↗
28. Deposition of duplex MAO layer/nanostructured titanium dioxide composite coatings on Mg–1%Ca alloy using a combined technique of air plasma spraying and micro arc oxidation10.1016/j.jallcom.2015.07.200 ↗