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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Materials Engineering of Soft Magnets for Power and Energy Applications
Presentation Title Effects of Cooling Rate on 6.5% Silicon Steel Ordering
Author(s) Brandt Jensen, Chad Macziewski, Kevin Dennis, Lin Zhou, Wei Tang, Olena Palasyuk, Levitas Valery, Matthew Kramer, Jun Cui
On-Site Speaker (Planned) Jun Cui
Abstract Scope Increasing Si content improves magnetic and electrical properties of electrical steel, with 6.5% Si as the optimum. Unfortunately, when Si content approaches 5.7%, the Fe-Si alloy becomes brittle. At 6.5%, the steel conventional cold rolling process is no longer applicable. The heterogeneous formation of B2 and D03 ordered phases is responsible for the embrittlement. The formation of these ordered phases can be impeded by rapid cooling. However, only the cooling rates of water and brine water were investigated. A comprehensive study of the effect of rapid cooling rate on the formation of the ordered phases was carried out by varying wheel speed and melt-injection rate. Thermal imaging employed to measure cooling rates while microstructures of the obtained ribbons are characterized using X-ray diffraction and TEM. The electrical, magnetic and mechanical properties are characterized using 4-pt probe, VSM, and macro-indentation methods. The relations between physical properties and ordered phases are established.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Advanced Magnetic Polymer Nanocomposites for High Frequency Device Applications
Advanced Magneto-Optical Domain Analysis in Soft Magnetic Materials
Advanced Soft Magnetic Materials for Highly-efficient Electric Motors
Candidate Coatings for Soft Magnet Composites: Insights Gained from Multiscale Electron Microscopy
Challenges to the Commercial Acceptance of Amorphous and Nanocrystalline Soft Magnetic Materials
Combinatorial High-throughput Discovery of Magnetic Materials in Thin Films
Consolidation and Behavior of Bulk Iron Nitride Soft Magnets via Spark Plasma Sintering
Consolidation of Bulk Ferrimagnetic Rare Earth Iron Garnets
Crystallization Products and Strain Annealing Effects in (FexNi1-x)80Nb4Si2B14 Metal Amorphous Nanocomposites (MANCs)
Development of Fe-based Bulk Metallic Glasses with Both High Saturation Flux Density and High Glass Forming Ability
Development of Mold Inductor for Power Conversion System
Direct Measurement of the Magnetocaloric Effect in NiMnIn Ribbons
Effect of Annealing Time on the Texture of a 2.8% Si Non-Oriented Electrical Steel after Inclined and Skew Rolling
Effects of Cooling Rate on 6.5% Silicon Steel Ordering
Ferrite-coated Fe Soft Magnetic Composites: Balance of Magnetic Permeability and Electrical Resistivity
Large Magnetocaloric Effect in Ga Substituted NiMnIn Metamagnetic Shape Memory Alloys
Magnetic Material Excited by Power Electronics in Electrical Engineering
Magnetic Properties of Shear-textured Fe-Si Sheet Produced by Simple Shear Deformation
Multi-parameter Magnetic Material Characterization for High Power Medium Frequency Converters
Nanocomposite Soft Magnetic Materials for High Frequency and High Power Conversion Applications
Novel Silicon Steel Nanocomposites via Severe Shear Deformation Approaches
Opportunities and Challenges in the Additive Manufacture of Soft Magnetic Silicon Steel Parts: Processing, Material Properties and Component Design
Structure-Processing-Property Relationships in High Temperature Nanocomposite Soft Magnets
Study of Temperature Dependent Magnetic Properties of Zr+4 and Ti+4 Substituted Cobalt Ferrites
Unique Magnetostriction of Fe68.8Pd31.2 Attributable to De-twinning Mechanism

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