|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Materials Engineering of Soft Magnets for Power and Energy Applications
||Effects of Cooling Rate on 6.5% Silicon Steel Ordering
||Brandt Jensen, Chad Macziewski, Kevin Dennis, Lin Zhou, Wei Tang, Olena Palasyuk, Levitas Valery, Matthew Kramer, Jun Cui
|On-Site Speaker (Planned)
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 At 6.5%, the steel conventional cold rolling process is no longer applicable.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.
||Planned: Supplemental Proceedings volume