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Meeting Materials Science & Technology 2019
Symposium Corrosion of Additively Manufactured Metals
Presentation Title 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
Author(s) Claudia Prieto, David Young, Marc Singer
On-Site Speaker (Planned) Claudia Prieto
Abstract Scope A 316L stainless steel, manufactured by direct metal laser sintering (DMLS), was electrochemically characterized by performing anodic potentiodynamic polarization (ASTM G5) and the ferric chloride pitting corrosion resistance test (ASTM G48). A 316L cold-rolled stainless steel was used as the reference material. Regarding potentiodynamic polarization, the pitting potential of the 316L SS was affected in the same fashion as its counterpart (316L SS cold-rolled). For the ferric chloride test, the 316L SS DMLS exhibited preferential corrosion through inherent microstructural defects (scan tracks). As a proposed solution to heal the scan tracks, some specimens were subjected to an argon-quenched heat treatment to eliminate such defects. As a result, the general corrosion resistance of the specimens was enhanced, as determined by the ferric chloride test, with no effects in the pitting corrosion potential. Nevertheless, nanoindentation characterization of the specimens indicated a diminution of the hardness and Young’s moduli of the heat-treated specimens.
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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