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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Environmental Degradation of Additively Manufactured Alloys
Presentation Title Corrosion and Protection (Conversion Coating and Plasma Electrolytic Oxidation) of Ti6Al4V Processed by Powder Bed Fusion – Additive Manufacturing Electrochemical and EIS Study
Author(s) Joseph Hazan, Menachem Bamberger
On-Site Speaker (Planned) Joseph Hazan
Abstract Scope Green conversion coatings has been developed using oxyanion like permanganate additive (a conversion layer former) to (H2SO4). An anodic oxide film by anodization (plasma electrolytic oxidation) has been also performed. The structure obtained for these two protective coatings consists of an outer (porous) layer, observed at high frequencies and an inner (barrier) layer at low frequencies in the impedance diagram. An electrical equivalent circuit describing the coated alloy is proposed. Electrochemical corrosion results in the corroding electrolyte (NaCl 3%) of Ti6Al4V will be presented and compared to that of a rolled (Ti-0.15 % Pd) foil. Finally, semi conductive properties of the passive film formed on the additive manufactured titanium alloy have been investigated. Mott-Schottky plots (CSC-2 vs. E) have been drawn and the donor concentration ND and the flat band potential EFB have been determined from the linear part and interpreted as regards passivation of the Ti alloy.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Additive Manufacturing (AM) of Steels for Extreme Environments- Opportunities and Challenges
Comparison of Voids Swelling in Additively Manufactured and Cold-worked 316L SSs After Self-ion Irradiations at Elevated Temperatures
Contrasting Corrosion and Cracking Behavior of Additively Manufactured and Wrought 17-4PH Stainless Steel
Corrosion and Protection (Conversion Coating and Plasma Electrolytic Oxidation) of Ti6Al4V Processed by Powder Bed Fusion – Additive Manufacturing Electrochemical and EIS Study
Corrosion Behavior of 304L Stainless Steel Produced by Laser Powder Bed Fusion
Corrosion Behavior of Newly Developed High Toughness Mixed-phase Steels
Corrosion Properties of Additively Manufactured Duplex Stainless Steel
Effect of Surface Contouring on Corrosion of 6061-RAM2 Produced by Laser-based Powder Bed Fusion Additive Manufacturing
Environmental Effects on the Stress Corrosion Cracking Behavior of an Additively Manufactured Stainless Steel
Examples of and Opportunities for Tailoring Corrosion Behavior of Materials via Additive Manufacturing
High Temperature Air Oxidation Behavior of Haynes 282 Processed by Electron Beam Melting (EBM)
High Temperature Corrosion of Additively Manufactured Inconel 625
High Temperature Oxidation and Phase Transformations in γ-TiAl Produced by Additive Manufacturing
High Temperature Oxidation Behavior of 316L Austenitic Stainless Steel Manufactured by the Selective Laser Melting
High Temperature Oxidation Behavior of Additively Manufactured Inconel 625 Superalloy in Two Directions
Interaction between Additive Manufacturing Defects, Powder Contamination, and Two Corrosive Environments
Issues in Localized Corrosion of Selective Laser Melted 316L
Localized Corrosion of Selective Laser Melted Stainless Steel 316L
On the Implication of Strain Localization on the Fatigue Crack Propagation Under Hydrogen Pressure of LBM Inconel 718
Role of Microstructure and Surface Finish on the Corrosion of Selective Laser Melted 304 and 316 Stainless Steel
SCC and IASCC of Printed 316L for Use in the Nuclear Industry
Segregation and Microstructural Factors Affecting the Oxidation Behavior of IN 625 Made by Additive Manufacturing
Stress Corrosion Cracking and Corrosion-fatigue Behavior of Additively Manufactured 17-4PH
Stress Corrosion Cracking Growth Behavior of Additively Manufactured Alloy 800H in High Temperature Water
Stress Corrosion Cracking Susceptibility of Additively Manufactured 2xxx-series Aluminum Alloys Produced by Selective Laser Melting (SLM)
The Effects of Ammonium Chloride and Thiosulfate Concentration on the Corrosion Behavior of Additively Manufactured 316L Stainless Steel
The Effects of Solution Chemistry on the Corrosion Behavior of Cold Sprayed AA7075
Understanding the Anomalous Corrosion Behavior of Additively Manufactured Stainless Steels through Multi-modal Synchrotron Techniques

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