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Meeting MS&T25: Materials Science & Technology
Symposium Advanced Coatings for Wear and Corrosion Protection
Presentation Title Cold-sprayed and arc-melted high-entropy alloys: wear, erosion and oxidation
Author(s) Yu Zou
On-Site Speaker (Planned) Yu Zou
Abstract Scope In this study, we use cold spray, HVOF, and plasma spray to process a eutectic high entropy alloyconsisting of soft FCC and hard BCC/B2 lamellar structure. XRD results indicate that all coatingsamples have experienced different extends of phase transformation. As characterized by SEM andWDS mapping, the processing environments of HVOF and plasma spray favour the formation ofAl2O3, showing high extends of elemental segregation of the Al in the NiAl rich BCC/B2 phase.Hardness on both the coating surfaces and cross-sections is increased due to the precipitation ofoxides. Cold sprayed samples show phase transformation with preservation of the lamellarmicrostructure and no significant signs of elemental segregation or oxidation. Cold spray is apromising manufacturing technique for the deposition of HEA coatings. We also make a comparison of the wear resistance of with arc-melted HEAs and MEAs up to 1000 °C. Here we systematically study the high-temperature hardness, wear behaviours and mechanisms.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Anti-erosion coatings of silicon carbide and tantalum carbonitride nanocomposite by chemical vapor deposition
Cold-sprayed and arc-melted high-entropy alloys: wear, erosion and oxidation
Effect of chromium content on intermetallic growth and heat resistance in hot-dip aluminized ferritic stainless steels
Effects of Cu, Sn, and Mn additions on intermetallic layer growth in hot-dip aluminizing with Al-9Si bath
Enhanced wear resistance of AS41 magnesium alloy via plasma electrolytic oxidation
Enhancing Tribological and Corrosive Properties of AM60 and AZ91 Magnesium Alloys via PEO Surface Modification
Evolution of mechanical properties of PEO coated Mg rods.
Laser Cladding of CoCrCuFeNi and CoCrFeNi High-Entropy Alloys on DMR 249A Steel: Corrosion and Wear behavior
Modern corrosion and wear-resistant coatings obtained using FA-charges operating in aggressive conditions of industrial production
NbC Reinforced Ni Based Alloy Cladding by Thermal Spray Coatings and Weld Overlay Technique
Open-Air Plasma Assisted Organosilicon Coating on Automotive Aluminum Alloys for Corrosion Protection
Oxide thin films obtained by reactive sputtering for antifouling purposes
Tailored DLC Coating for Regolith Dust Mitigation
Tribocorrosion Performance of TiAlN and AlTiN Coatings on Ti6Al4V Alloy for Biomedical Applications
Understanding the role of particle size on thin coating formation and mechanical properties of WC-Co-Cr coatings deposited by HVAF spray

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