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In-situ Heating EBSD Study of Effects of Cold Reduction Ratio on Recrystallization and Grain Growth Behaviors in 3% Si Electrical Steels

Title
In-situ Heating EBSD Study of Effects of Cold Reduction Ratio on Recrystallization and Grain Growth Behaviors in 3% Si Electrical Steels
Authors
Mun, HyunwooLee, SeilKoo, Yang Moo
Date Issued
Jan-2017
Publisher
Nippon Tekko Kyokai/Iron and Steel Institute of Japan
Abstract
Crystallographic texture development during recrystallization in samples cold-rolled to 78, 87 and 96% thickness reduction R were measured using EBSD on an in-situ heating stage inside a field emission scanning electron microscope. Nucleation, recrystallization and grain growth of grains having {411} < 148 > orientation occurred intensely and steadily inside the deformed region. Through this phenomenon, grains having {411} < 148 > showed larger average grain sizes than other textures at R = 87% and 96%. Due to the {411} < 148 > texture component, the {111} < 112 > texture component, which is known as a high reduction emerging texture, weakened. At R = 76%, grains having Goss orientation were frequently observed. However, at R = 87% and 96%, the {111} < 112 > and the {411} < 148 > texture components became dominant and the alpha* fiber was strengthened.
URI
http://oasis.postech.ac.kr/handle/2014.oak/50592
ISSN
0915-1559
Article Type
Article
Citation
ISIJ International, vol. 57, no. 7, page. 1241 - 1245, 2017-01
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구양모KOO, YANG MO
Ferrous & Energy materials Technology
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