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Meeting Materials Science & Technology 2019
Symposium Corrosion of Additively Manufactured Metals
Presentation Title High Temperature Oxidation of 718 Alloy Produced by Additive Manufacturing
Author(s) Tom Sanviemvongsak, Daniel Monceau
On-Site Speaker (Planned) Tom Sanviemvongsak
Abstract Scope Additive manufactured parts are now used in the hot section of aircraft gas turbines and their durability need to be assessed. The isothermal oxidation behavior at 850 C of 718 alloys produced by Laser Beam Melting (LBM) and Electron Beam Melting (EBM), were compared to a conventional wrought 718 alloy. Results showed that AM 718 alloys presented higher mass gain kinetics compared to the wrought one. But a quantitative correlation of oxidation kinetics and surface topographies showed that they have similar isothermal oxidation resistance in terms of affected thicknesses. Nevertheless, quantitative analyses of the intergranular oxidation revealed that additive manufactured samples present slightly higher intergranular oxidation kinetics compared to the wrought alloy. These dissimilarities can be attributed to chemical composition, grain sizes or crystallographic textures differences.
Proceedings Inclusion? Definite: At-meeting proceedings

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Corrosion of Additive Materials for Naval Applications
Corrosion of Additively Manufactured Stainless Steels – Process, Structure, and Performance
Corrosion Performance of Aluminium Based Functionally Graded Materials Processed by Wire-arc Additive Manufacturing
Effect of Chloride and Heat Treatment on Pitting Corrosion Resistance and Mechanical Properties of a 316L Stainless Steel Manufactured by the Direct Metal Laser Sintering (DMLS) Process
Effect of Surface Finish on the Corrosion Properties of Additively Manufactured Stainless Steel
Electrochemical Characterization of Additively Manufactured Al-10Si-Mg in Standardized Test Solutions
Evaluation of the Corrosion Response of Additively-Manufactured 17-4 PH Stainless Steel Samples as a Function of Build and Finish Parameters
High Temperature Oxidation and Creep Oxidation of Compositionally Graded Alloys in Air and Supercritical CO2: Modeling and Experiment
High Temperature Oxidation of 718 Alloy Produced by Additive Manufacturing
Hydrogen Concentration and Uptake in Additively Manufactured Austenitic Stainless Steels
Improved Electrochemical Response of SLM 316L SS in Physiological Solutions
Issues in Localized Corrosion of Selective Laser Melted 316L
P3-37: Microstructure and Corrosion Behavior of Alloy 625 Produced by Laser Powder Bed Fusion
Surface Damage of an AM-AlSi10Mg Alloy Exposed to Corrosive Environments with Lack of Fusion Defects and Powder Contamination
Surface Preparation of Additively Manufactured Metals and Subsequent Comparison of Corrosion Characteristics
The Effects of Laser Peening Parameters on the Corrosion and Hardness Properties of Ti6Al4V Alloy
Understanding the Influence of Retained Nitrogen in Additively-Manufactured 17-4 Stainless Steel: Does it Really Improve Corrosion Resistance?

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