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Meeting MS&T23: Materials Science & Technology
Symposium Advanced Coatings for Wear and Corrosion Protection
Presentation Title Ceramic Coating as a Diffusion Barrier to Prevent Saddle Marks in Continuous Homogenization of Aluminum 6000 Series
Author(s) Mojtaba Mohammad, Carmo Perrella, Larry Pershin, Javad Mostaghimi
On-Site Speaker (Planned) Mojtaba Mohammad
Abstract Scope This study examined the effectiveness of plasma-sprayed ceramic coatings as a diffusion barrier to prevent the formation of saddle marks on aluminum 6000 series logs during continuous homogenization. Our study shows that during the exposure at temperatures close to the aluminum melting point, aluminum diffuses into the stainless steel, where intermetallic Ni-Al/Fe-Al compounds form. When the billets are moved, the chunks of bonded aluminum are pulled out of the billet, leaving deep craters on the surface, greatly decreasing the final product value. The study found that the ceramic coating acted as a barrier, preventing aluminum diffusion and intermetallic formation, thereby eliminating saddle marks and improving surface morphology. The use of atmospheric plasma spray torch to deposit Al2O3 layers was found to be effective in preventing intermetallic compound formation during homogenization. This promising solution can increase the product recovery during forming, while minimizing scrap material and enhancing the overall manufacturing process.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Benefits of Yttria-doping in Ytterbium Disilicate Environmental Barrier Coatings
Ceramic Coating as a Diffusion Barrier to Prevent Saddle Marks in Continuous Homogenization of Aluminum 6000 Series
Corrosion-Resistant Coatings for Storage Canister
Development and Wear Behaviour of Compositional Gradient and Multi-layered Ni-W Alloy Coatings
Effect of Micro-arc Oxidation Voltage on the Morphology and Electrochemical Properties of AZ31B Magnesium Alloy
Effect of Sustainable Silica-rich Graphene Analogues to Achieve High-Performance Corrosion Resistance Coating for Carbon Steel
Effects of BN Content on the Microstructure and Mechanical Properties of Cr3C2–NiCr-BN Composite Coatings Prepared by a Novel Ethanol-fueled HVOF Process
Highly Robust CeO2/C3N4-modified NiP Electroless-plated Coatings
Improvement of Cutting Performance of Titanium Based Vacuum Brazed Diamond Tools Excursively Coating via Physical Vapor Deposition
J-1: Development of Fusion Bonded Epoxy Coatings on Steel Components for the Improved UV and Corrosion Resistance Performance
J-2: Obtaining Protective Coatings TiAl, TiSi under Conditions of Synthesis of Complex Functionally Active Charges
Novel Thermal Barrier Coatings Stable up to 1700C
Structural Integrity Assessment of Cold Spray Repaired High-Strength Aluminium Alloy 7075 Specimens
Surface Preparation and Process Optimization on Thin Film Coating to Reduce Wafer Warpage for Advanced Packaging Applications in Semiconductor Industry
Sustainable Development of Spray Parameters for Thermal Spray
The dDevelopment of Resistance Seam Cladding for Corrosion Resistant Liners in Linepipe
The Importance of Controlling UV Coating Temperature to Stabilize Viscosity during Application to Reduce Energy Consumption
Tribological and Anti-scaling Performance of Graphene-enriched Thin Polymer Coatings
ZnO-doped C3N4 Nanocapsules-modified NiP Metallic Coating

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