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Meeting Materials Science & Technology 2020
Symposium Phase Transformations in Additively Manufactured Materials
Presentation Title Laser Powder Bed Fusion of Grade 300 Maraging Steel for Tooling Applications
Author(s) Peeyush Nandwana, Rangasayee Kannan, Andrew Nguyen, Donovan Leonard, Ryan Dehoff
On-Site Speaker (Planned) Rangasayee Kannan
Abstract Scope Maraging steels, owing to the presence of the softer martensite, high dimensional stability, and the ability to be precipitation hardened to high strengths make for excellent tooling materials via laser powder bed fusion (LPBF) for injection molding applications. The softer nickel enriched martensite prevents solid-state cracking resulting from the high cooling rates experienced during LPBF. In this study we discuss the as-fabricated microstructure of a Ti-free Grade 300 maraging steel and demonstrate that direct aging results in higher strength and higher elongation compared to the conventional solution treatment and aging. The underlying phase transformations will be discussed.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Design of Post-fabrication Heat Treatments for Ti Free Grade 300 Maraging Steel Manufactured Using Laser Powder Bed Fusion (LBPF) Process
Development of Non-equilibrium Thermodynamic Tools for Additive Manufacturing
Effects of Laser Powder Bed Fusion Parameters and Heat Treatment on Microstructure and Mechanical Behavior of Inconel 718 Alloy
In-situ Characterization of Rapid Phase Evolution of AM Metals with High Energy Synchrotron X-ray Diffraction
Laser Powder Bed Fusion of Grade 300 Maraging Steel for Tooling Applications
Laser Powder Bed Fusion of Stainless Steel 15-5PH: Microstructure Analysis and Process Optimization
Microstructure Engineering through Post-heat Treatment of Inconel 718 Superalloy Made by Laser Powder Bed Fusion
Phase Field Simulations of Cellular-to-Dendritic Transition under Additive Manufacturing Conditions
Process Optimization and Microstructure Analysis to Understand Laser Powder Bed Fusion of Stainless Steel 316L
Rapid Solidification of Aluminium 6061 Using Fast Scanning DSC
Real-time Observation of the Competition between Ferritic vs Austenitic Solidification in Micro-laser Welding of 316L Using Synchrotron X-ray Diffraction
Understanding the Effect of Thermal Gradients on Additively Manufactured (AM) Builds Using In Situ TEM

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