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Title: Effects of Cooling Rate on 6.5% Silicon Steel Ordering

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 At more »6.5%, the steel conventional cold rolling process is no longer applicable.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.« less
Title: Effects of Cooling Rate on 6.5% Silicon Steel Ordering
Publication Date: 2017-03-02
OSTI Identifier: 1373274
DOE Contract Number: EE0007794
Resource Type: Multimedia
Resource Relation: Journal Name: TMS 2017 Conference; Conference: TMS 2017, San Diego, 2/26-3/2/2018
Research Org: Iowa State University
Sponsoring Org: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Subject: 36 MATERIALS SCIENCE ; Electrical steel
Country of Publication: United States
Language: English
Run Time:
System Entry Date: 2018-03-08