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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Additive Manufacturing of Functional, Energy, and Magnetic Materials
Presentation Title Inconel-steel Multi-metal-material by Liquid dispersed Metal Powder Bed Fusion: Microstructure, Stress and Property Gradients
Author(s) Sabine C. Bodner, L.T.G. van de Vorst, Jakub Zalesak, Juraj Todt, Julius F. Keckes, Verena Maier-Kiener, Bernhard Sartory, Norbert Schell, Jaap Hooijmans, Jaco Saurwalt, Jozef Keckes
On-Site Speaker (Planned) Sabine C. Bodner
Abstract Scope Synthesis of functional multi-material hybrid structures represents a serious scientific and technological challenge. In this contribution, liquid dispersed metal powder bed fusion is used to fabricate a multi-metal structure based on alternating 316L stainless steel and Inconel 625 alloy layers. Gradients of phases, residual strains, microstructure, mechanical properties and chemical composition were determined at different length scales within the build-up by the use of cross-sectional synchrotron X-ay diffraction, nanoindentation and transmission electron microscopy. The advanced correlative characterization revealed nano-scaled spherical chromium-metal oxide dispersoids that were formed due to reactive additive manufacturing process. Morphologically sharp stainless steel-Inconel interfaces as well as regions with intermixed alloy’s elements could be realized by adapting the layer stack. Finally, this study shows that liquid dispersed metal powder bed fusion offers the possibility for the synthesis of complex microstructures based on dissimilar metal alloys.
Proceedings Inclusion? Planned:


Additive Manufacturing of Soft Magnets for Electrical Machines—Prospects and Challenges
Advanced Design for Lightweighting Wind Power Generators Using Additively Manufactured Hard and Soft Magnets
An Additive Manufacturing Design Approach to Achieving High Strength and Ductility in Traditionally Brittle Alloys via Laser Powder Bed Fusion
Cold Spray of Permanent Magnets
Composition Control in Laser Powder Bed Fusion Additive Manufacturing Through Differential Evaporation
Development of High-temperature Permanent Magnet Alloys for Additive Manufacturing
Effect of Processing Parameters on Thermal Cyclic Stability of Nitinol Alloys Manufactured by Selective Laser Melting
Engineered Interconnected Porosity for Enhanced Functional Devices
Establishing Fundamentals for Laser Metal Deposition of Functional Ni-Mn-Ga Alloys: Effect of Rapid Solidification on Microstructure and Phase Transformation Characteristics
Inconel-steel Multi-metal-material by Liquid dispersed Metal Powder Bed Fusion: Microstructure, Stress and Property Gradients
Meltpool Oxidation and Reduction and Inclusion Evolution during the PBF Type Additive Manufacturing
Modeling of Selective Laser Melting of NiTi Shape Memory Alloy: Laser Single Track and Melt Pool Dimension Prediction
Selective Laser Melting of Defect-free NiTi SMA Parts Using a Process Optimization Framework
Toward Understanding the Effect of Selective Laser Re-melting on the Mechanical Properties of the SLM Fabricated Nitinol

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