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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Surface Engineering for Improved Corrosion Resistance
Presentation Title Oxidation and Corrosion Phenomena in Powder-processed Icosahedral-phase-strengthened Aluminum Alloys
Author(s) Sarshad Rommel, Hannah Leonard, Thomas Watson, Venkat Vedula, Mark Aindow
On-Site Speaker (Planned) Sarshad Rommel
Abstract Scope Recently, we have developed an Al-Cr-Mn-Co-Zr alloy that exhibits a nano-composite FCC Al plus I-phase microstructure in gas-atomized powder. This microstructure is retained during consolidation of the powder to form bulk material or cold-sprayed coatings, and the materials exhibit a remarkable combination of mechanical properties and pitting corrosion resistance. Here we report a study on the dry oxidation and aqueous pitting corrosion behavior in a series of three more dilute Al-Cr-Mn-Co-Zr alloys. These alloys contain the same phases as the original alloy, but there are variations in the I-phase morphology and distribution. A combination of electron microscopy techniques has been used to evaluate the alloy surfaces after elevated temperature exposure in dry laboratory air, after standard ASTM salt-fog testing, and after potential cycling in saline solutions. Local variations in the oxide scales and pit formation are related to the underlying alloy microstructures, and the mechanisms involved are discussed.
Proceedings Inclusion? Planned: Supplemental Proceedings volume


Advanced Surface Mechanical Treatments and Grain Boundary Engineering for Improved Resistance to Corrosion and Stress Corrosion Resistance of FCC Alloys
An Assessment on the Effect of Lecaniodiscus Cupaniodes Extract in Corrosion Inhibition of Normalized Mild Steel in 0.5 M HCl
Anti-corrosion Properties of Rosemary Oil and Vanillin on low carbon steel in Dilute Acid Solutions
Aqueous Corrosion Behaviour of Pulse Electrodeposited Nanocrystalline Ni-W and Ni-W/SiC Nanocomposite Coatings
Corrosion Behavior of CP-copper with CG and UFG Grain Size after Irradiation by High Current Pulsed Electron Beam
Corrosion Behavior of Laser Surface Melted Inconel 718 Superalloy
Corrosion Behavior of Microarc Oxidized Mg Alloy in Simulated Body Fluid
Corrosion Characteristics of Additively Manufactured Materials
Corrosion Inhibition of Martensitic Stainless Steel by Ammonium Benzoate in Acidic Solution: Solanum Tuberosum Extract as Surfactant
Corrosion Resistance of Aluminium in 0.5 M H2SO4 in the Presence of Cassia Fistula Extract
Corrosion Resistant Magnesium Surface Alloys by SMASH
Development of Linseed Oil Based Self-healing Coatings to Improve Corrosion Protection
Effect of Coating Composition on Microstructure and Corrosion Resistance of Zn-Mg-Al Hot-dip Alloy Coated Steel Sheets
Effect of Voltage and Charge Densities on Nanoporous Oxide Pore Diameter on AA1050
Enhancing the Corrosion Resistance of Biodegradable WE43 Mg Alloy via Solid Solution Alloying
Examining the Corrosion Resistance of Magnesium Coated with Polyetherimide Using Three Different Methods
Graphene Ultra-thin Coating for Remarkable Corrosion Resistance: Current Status and Challenges
Impact of Pre-straining Induced Surface Modification on the Corrosion Resistance of Lean Duplex Stainless Steel
Influence of Surface Chemistry on the Formation of Crystalline Hydroxide Coatings on Mg Alloys in Liquid Water and Steam Systems
Mechanical and Corrosion Behavior of 304 Austenitic Stainless Steel Processed by Cryogenic Rolling
Nanostructured Al-alloy Coatings for Corrosion Protection of High-strength Al and Mg Alloys
Oxidation and Corrosion Phenomena in Powder-processed Icosahedral-phase-strengthened Aluminum Alloys
Passivity of Al-transition Metal Alloys and Al-inhibitor Composites
Performance of Thermal Spray Coating on Proprietary Magnesium/Aluminum Alloy
Predict Corrosion Phenomena and Surface Properties of Al-based Alloys
Severe Plastic Deformation Surface Treatment on Corrosion and Environmental Cracking of Oilfield Alloys
Stainless Steel Corrosion Resistance in 0.5 M H2SO4 Using Cassia Fistula Extract
Study on Corrosion Behavior of Rare-earth Added High Strength Magnesium in Presence of 8-hydroxyquinoline Corrosion Inhibitor
Synergistic Effect of Benzonitrile and Benzothiazole on the Corrosion Inhibition of 316 Stainless Steel in 6M HCl Solution

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