Formation of islands and peninsulas of fine grains during the secondary recrystallization of an Fe-3wt% Si steel

Journal Article · Tue Aug 11 04:00:00 EDT 1998 · Scripta Materialia

DOI:https://doi.org/10.1016/S1359-6462(98)00235-8· OSTI ID:653124

Lee, S B; Yoon, D Y ^[1]; Hwang, N M ^[2]; Han, C H ^[3]

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1. Korea Advanced Inst. of Science and Technology, Taejon (Korea, Republic of)
2. Korea Research Inst. of Science and Science, Taejon (Korea, Republic of)
3. Pohang Iron and Steel Co., Ltd. (Korea, Republic of)

When large grains grow abnormally during the secondary recrystallization of Si-steel and other alloys, islands and peninsulas of single fine grains and clusters of fine grains are left behind the moving grain boundary front. The mechanism of this phenomenon has not yet been understood. Based on the results of computer simulation assuming anisotropic grain boundary energy which depended only on the misorientation between grains, Rollett et al. proposed that the large growing grains could wet the grain boundaries between the fine grains and hence leave isolated grains behind the growing grain boundary front. An abnormal gain growth (AGG) observed in aluminum was cited as an evidence for their simulation result. In this work the authors compare an AGG structure in an Fe-3wt% Si alloy with the simulation of Rollett et al.

• OSTI ID: 653124
• Journal Information: Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 6 Vol. 39; ISSN 1359-6462; ISSN SCMAF7
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANNEALING
COMPUTERIZED SIMULATION
GRAIN BOUNDARIES
GRAIN GROWTH
IRON BASE ALLOYS
RECRYSTALLIZATION
SILICON ALLOYS
TEMPERATURE RANGE 1000-4000 K
VALIDATION