Final thickness reduction and development of Goss texture in C- and Al-free Fe-3%Si-0.1%Mn-0.012%S electrical steel
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- Title
- Final thickness reduction and development of Goss texture in C- and Al-free Fe-3%Si-0.1%Mn-0.012%S electrical steel
- Authors
- Oh, Eun Jee; Heo, Nam Hoe; Koo, Yang Mo
- Date Issued
- 2017-11
- Publisher
- KOREAN INST METALS MATERIALS
- Abstract
- The correlation between final thickness reduction and development of Goss texture has been investigated in a C- and Al-free Fe-3%Si electrical steel. During final annealing, the annealing texture is transited from {110}aSND to {100}aSND texture with increasing final thickness reduction. This is due to the decrease in primary grain size after pre-annealing with increasing final thickness reduction which accelerates the selective growth rate of the {100} grains at the expense of the other {hkl} grains. At an optimal final thickness reduction of 75.8%, the high magnetic induction of 1.95 Tesla, which arises from the sharp {110}< 001 > Goss texture and is comparable to that of conventional grain-oriented electrical steels, is obtained from the C- and Al-free Fe-3%Si-0.1%Mn electrical steel. Such a high magnetic property is produced through the surface-energy-induced selective grain growth of the Goss grains under the lower surface-segregated condition of sulfur which makes the surface energy of the {110} plane lowest among the {hkl} planes.
- Keywords
- GRAIN-BOUNDARY MOTION; SEGREGATION; RECRYSTALLIZATION; GROWTH; ALLOY
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/50605
- DOI
- 10.1007/s12540-017-7050-9
- ISSN
- 1598-9623
- Article Type
- Article
- Citation
- METALS AND MATERIALS INTERNATIONAL, vol. 23, no. 6, page. 1223 - 1226, 2017-11
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