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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Advances in Magnetic Materials
Presentation Title D-17: Microstructural Processing and Phase Stabilization Analysis of Off-stoichiometric Fe-Mn-Ga Shape Memory Alloy
Author(s) Nana A. Adoo, Nickolaus M. Bruno
On-Site Speaker (Planned) Nickolaus M. Bruno
Abstract Scope Fe-based magnetic shape memory alloys (MSMAs) have been of great interest to the scientific community as they have been shown to exhibit a metamagnetic phase transition, namely a concurrent reversible martensitic transition and change in magnetic ordering. The multiferroic transitions in these alloys have potential application as energy harvesters, solid-state magnetic coolants, sensors, and actuators. Unlike Ni-based MSMAs, Fe-based MSMAs have been reported to exhibit better ductility, however, the effect of processing on phase stability and the metamagnetic behaviors have rarely been studied. This work shows that non-transforming phases can form in FeMnGa MSMAs with slow cooling after homogenization treatments and that the large transformation hysteresis observed in these alloys is heavily influenced by the microstructure and alloy composition. The structure-property relationships in FeMnGa MSMA are investigated over a range of compositions (e/a ratio) and we present possible processing methods and compositions useful for engineering stable and transformable Fe-based MSMAs.
Proceedings Inclusion? Planned:
Keywords Phase Transformations, Other, Other

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Semi-continuous Hot Deformation Method for Making Anisotropic Nd-Fe-B Magnet
Computer-aided Optimization of Packing Behavior of Soft-magnetic Amorphous Powder
Crystallization Characteristics in Co-based Magnetic Amorphous Nanocomposites
Crystallization Kinetics and Magnetic Properties of Co-Fe2.3Mn2.3Nb4Si2B14 Nanocomposite Ribbon
D-15: Effects of Machining and Electroplating on Magnetic Properties of Small Sintered NdFeB Magnets
D-16: Investigating Irradiated Superconducting Magnet Insulation Materials for Particle Accelerators and Other High-dose Environments
D-17: Microstructural Processing and Phase Stabilization Analysis of Off-stoichiometric Fe-Mn-Ga Shape Memory Alloy
D-18: Order-disorder Transition and Antiferromagnetism in Cu-Mn-Al BCC Alloys
D-19: Polyurethane Based Composites for Magnetic Actuator Applications
D-20: The Effect of Stress-annealing on the Mechanical and Magnetic Properties in Fe-based Metal-amorphous Nanocomposites
Denitrogenation Process in ThMn12 Nitride by In Situ Neutron Powder Diffraction
Development of the Sintered (NdMM)-(FeCo)-B Based Magnets Substituted Nd by Less Critical Rare Earth (MM= La, Ce)
Development of Magnetic Refrigeration Materials for Cryogenic Applications
Effect of Nitrogen Martensite Formation on Magnetostriction in Fe-Co Alloy
Effect of Thermodynamic and Sintering Atmosphere Parameters on Magnetic Properties of Mn-Zn Ferrites
Enhanced Powder-Processed Alnico Magnets by Novel Solid-State Engineering of the Microstructure and Nanostructure
Enhancing Stability and Magnetism of ThMn12-type Cerium-iron Intermetallics by Site Substitution
Fe-doping Influence on the Magnetostrictive Behaviour of Ni–Mn–Ga–Co–In–Fe Magnetic Shape Memory Alloys
Grain Boundary Engineering for High Performance Heavy Rare-Earth Free Permanent Magnets
Hard Magnetic SmCo5-Cu Nanocomposites Produced by Severe Plastic Deformation
High-Temperature Stability of Induced Anisotropy and Permeability in Co-Rich Nanocrystalline Soft Magnetic Alloys
High Throughput Evaluation of Magnetic Alloys for Energy Applications
Incisive Review on Magnetic Iron Oxide Nanoparticles and Their Use in the Treatment of Bacterial Infections
Increased Energy Product of Nd2Fe14B-based Magnets Processed by Concurrent HDDR within Applied Magnetic Fields
Influence of Severe Plastic Deformation on the Magnetic Properties of SmCo Permanent Magnets
Investigations into the Processing and Magnetic Properties of Nd-Fe-B Magnets Produced by Extrusion
Low Magnetostrictive Materials Produced by Severe Plastic Deformation
Magnetoelastic Resonance Sensors: The Importance of Their Geometry on the Most Recent Applications
Magnetovolume Effects in Metamagnetic Shape Memory Heusler Compounds
Market Trends and Supply Chain Constraints for Soft Magnetic Materials
Mechanochemical Synthesis of Magnetostrictive Materials: Ce-doped Galfenol and Alfenol
Mixed Magnetic Phases in AlxCoCrNiFe High Entropy Alloy
R’yR’’1-yScX: Magnetically Compensated Materials for Spin-based Applications
Rhombic Magnetoelastic Sensors with MOF Active Layers: A Potential Tool for Wireless VOCs Detection
Superparamagnetic Iron Oxide-based Bulk Nanocomposites
The Impact of Packaging on Soft Magnetic Core Performance
The Search in the Vast High-entropy Alloy Space for Competitive Magnetocaloric Properties
Toughening Sm-Co Sintered Magnets by Additive-modified Microstructure Engineering
Towards One-step Castable Cerium-based Gap Magnet
Tunable Magnetics: Materials, Manufacturing, and Component Designs
Using Soft X-ray Photon Correlation Spectroscopy to Study Magnetic Helical Dynamics

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