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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Environmental Degradation of Additively Manufactured Alloys
Presentation Title Corrosion Behavior of Newly Developed High Toughness Mixed-phase Steels
Author(s) Neetu Verma, S. Sangal, K. Mondal
On-Site Speaker (Planned) Neetu Verma
Abstract Scope Advanced steels based on bainitic or mixed-phase microstructures by proper choice of alloying represent promising candidate in alternative to conventional pearlitic steel for railway applications. In the present work, 0.61%C-1.71%Si-0.86%Mn steel has been used for the development of mixed-phase morphologies consisting of bainite, pro-eutectoid ferrite and retained-austenite by employing novel heat treatment strategies (continuous cooling followed by isothermal heat treatment). Corrosion behavior of these steels has been carried out in freely aerated 3.5wt.% NaCl solution. Dynamic-polarization, linear-polarization and immersion testing followed by detailed microstructural characterization of the surface before and after corrosion as well as the rust layer with the help of scanning electron microscopy, optical profilometry and Raman spectroscopy have indicated better corrosion resistance of the mixed-phase steel to pearlitic rail steel. The presence of higher degree of α-FeOOH in the rust phase as well as not-so-severe galvanic corrosion in the mixed-phase steels attribute to their better corrosion resistance.
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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