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Meeting MS&T22: Materials Science & Technology
Symposium Advanced Coatings for Wear and Corrosion Protection
Presentation Title Optimization of the Microstructure and Performance of Aluminum Alloy Cold Spray Coatings on Magnesium Alloy Substrates
Author(s) Sridhar Niverty, Rajib Kalsar, Anthony Naccarelli, Timothy Eden, Vineet V Joshi
On-Site Speaker (Planned) Sridhar Niverty
Abstract Scope The widespread implementation of Magnesium alloys for the automotive industry warrants an improvement in their corrosion performance and their ability to withstand dissimilar material contact under corrosive environments. Solid-phase coating methods offer opportunities to precisely tune the coating microstructure, thickness, and coating-substrate interface. We report on the optimization and characterization of cold spray deposited AA6061 aluminum alloy coatings on AZ91 Magnesium alloy substrates. Coatings with low porosity, high thickness and hardness were achieved through the use of bond coating composed of pre-treated CP-Al powders. The dynamic nature of the cold spray process enabled the formation of a metallurgical bond at the coating-substrate interface, leading to high adhesion strengths. Lastly, the substantial improvement in corrosion performance of the coatings was evaluated over multiple length scales using in situ electrochemical characterization methods and correlative microscopy.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Coating Properties of Alkyd Resin, Epoxy Resins and Polyurethane Based Nanocomposites: A Review
Corrosion Resistant Amorphous Based Thermal Sprayed Coatings for Fluoride Molten Salt Environment
Development of Novel Wear and Impact Resistant Titanium-Boron Nitride Coatings for Lunar Structural Components
Direct Electrodeposition of Corrosion Resistant Coatings onto Aluminum after One Step Surface Pretreatment
Evaluation of Wear and Corrosion Performance of Wire Arc Sprayed Al-Si Coating for Marine Applications
Features of Increase Wearproofness Became Influence of Polymethylmethacrylat at a Contact
Friction and Anti-galling Properties of Diamond-like Carbon Coating on Oil Field Parts
High-performance Coatings with Exposure to High Temperatures Obtained under SHS Conditions
Improved Coating Performance of REACH Compliant Trivalent Chromium Plating Process for Functional Applications
Mechanical Property and Corrosion Behavior of Ni-based Coating with Al and Mo Addition
Metallurgical and Mechanical Bonding of Al2O3 on Mold Steel and Wear Behavior: Laser Cladding vs. Thermal Spray
Novel Surface Treatment for Electrolytic Deposition of Chromium onto Zirconium
Optimization of the Microstructure and Performance of Aluminum Alloy Cold Spray Coatings on Magnesium Alloy Substrates
PVD Coated Ceramics and Cubic-boron Nitride (cBN) for Metalcutting-Benefits and Challenges

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