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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Environmental Degradation of Additively Manufactured Alloys
Presentation Title Environmental Susceptibility of EBM Ti-6Al-4V as a Function of Print Direction in Seawater
Author(s) Matthew McMahon, Nicholas Pizzolato, Fatou Cisse, Eric Dau, William Golumbfskie
On-Site Speaker (Planned) Matthew McMahon
Abstract Scope Ti-6Al-4V is a popular alloy for aerospace, oil and gas, biomedical, and naval applications due to its high corrosion resistance, light weight, and high strength. This alloy has proven compatible with additive manufacturing processes such as electron beam melting (EBM), which through powder bed heating can produce parts with relatively low residual stress and high toughness compared to similar AM methods. These attributes make EBM a desirable AM processing route for marine components, though numerous questions remain concerning differences in environmental susceptibility in comparison to legacy processing methods. This effort aims to understand the corrosion and stress corrosion susceptibility of EBM Ti-6Al-4V in seawater conditions as a function of print direction. Emphasis will be placed on porosity and surface characteristics for evaluation of flow-assisted corrosion, pitting, and stress corrosion susceptibility. Comparison will be drawn to conventional castings in order to identify optimization opportunities for marine EBM Ti-6Al-4V components.
Proceedings Inclusion? Planned:
Keywords Additive Manufacturing, Environmental Effects, Titanium

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

AM Stainless Steel 316L in Corrosive Environment: Features Controlling Pitting and Metal Dissolution
Corrosion of Additively Manufacture Magnesium Alloys
Corrosion Properties of AM A20X
Effect of Oxygen on Corrosion Resistance of Stainless Steel 316L Prepared by Powder Bed Fusion
Effect of Post Processing Treatments on Corrosion Behavior of Laser Powder Bed Fusion(LPBF) 7050 Aluminum Alloy
Environmental Susceptibility of EBM Ti-6Al-4V as a Function of Print Direction in Seawater
Exploring the Stress-corrosion Cracking Susceptibility of Additively Manufactured 316L in Boiling Magnesium Chloride
High Temperature Oxidation of Additively and Conventionally Manufactured Heat Resistant Steel: HK30Nb
How Part Surfaces Influence Corrosion for a Laser Powder Bed Fusion 316L Stainless Steel
Hydrogen Trapping at Grain Boundaries and Dislocation Structures in Additively-manufactured Stainless Steel 316L Evaluated via SIMS/EBSD
Impact of Chemistry and Microstructure on Corrosion Properties of Designed High-performance Stainless Steel Powder for Additive Manufacturing
Long-term High-temperature Oxidation Performance of Inconel 625 Processed by Laser-assisted Additive Manufacturing
Metal Dusting Resistance of Additively Manufactured Ni-based Alloys: Influence of Post-processing Surface and Heat Treatments
Microstructure and Corrosion Behavior of 309L Stainless Steel Clad onto Carbon Steel Using Wire-fed Directed Energy Deposition
On the Heating Rate Dependent Oxide Formation and Evolution on Laser-based Directed Energy Additively Deposited IN718
Pulsed Transient High Heat Flux Testing of Coated Alloys in Extreme Environments
Sensitization of Austenitic Alloys Made by Laser Powder Bed Fusion
Surface Finishing Effects on the Corrosion Properties of Additively Manufactured 316L Stainless Steel
Transpiration Cooling of Additively Manufactured Porous Metallic Structures in High Heat Flux Environments
Tribo-corrosion Degradation of Additively Manufactured Multi-principal Element Alloy.

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