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Meeting Materials Science & Technology 2019
Symposium Corrosion of Additively Manufactured Metals
Presentation Title Corrosion of Additively Manufactured Stainless Steels – Process, Structure, and Performance
Author(s) Michael A. Melia, Eric Schindelholz, Jeffrey Rodelas
On-Site Speaker (Planned) Michael A. Melia
Abstract Scope Additively manufactured (AM) metals exhibit numerous microstructural and morphological differences compared to their wrought counterparts from lack of fusion porosity to dislocation cell structures. The influence these unique features have on the metals corrosion resistance is largely not understood. The use of heat treatments and other post-processing procedures can return the AM part to a more traditional appearance; however this adds time and costs to the part. The present work will address the current state of understanding, gaps in scientific knowledge, and research needs with greatest impact for advancement and qualification of AM stainless steels in corrosive service environments. The impact build orientation, as-built surface morphology, surface finish techniques, melt pool boundaries, porosity, grain boundary character, and nonmetallic inclusions have on local corrosion initiation, propagation, and environmental assisted cracking will be discussed for a 316L alloy fabricated using powder bed selective laser melting (SLM) relative to its conventionally processed counterpart.
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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