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논문 기본 정보

자료유형
학술저널
저자정보
Tae‑Young Kim (Seoul National University) Tae‑Wook Na (Korea Institute of Industrial Technology) Hyung‑Seok Shim (Korea Research Institute of Standards and Science) Yong‑Keun Ahn (Seoul National University) Yong‑Kwon Jeong (Seoul National University) Heung Nam Han (Seoul National University) Nong‑Moon Hwang (Seoul National University)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.27 No.12
발행연도
2021.12
수록면
5,114 - 5,120 (7page)
DOI
10.1007/s12540-020-00794-7

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초록· 키워드

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Penetrating morphologies at the growth front of abnormally-growing Goss grains in Fe?3%Si steel was examined in view ofthe possibility that they are the two-dimensional section of the solid-state wetting (SSW) along the triple junction line. Toobtain the statistically meaningful data, 102 penetrated grain and 204 penetrating abnormally-growing Goss grain morphologieswere examined. The misorientation angles of penetrating and penetrated grains were measured by electron backscattereddiffraction. Among the 102 examined penetrated grain boundaries, none has low misorientation angles less than 15°,whereas 17.2% of the 204 penetrating grain boundaries have low misorientation angles, and 23.5% of them have coincidencesite lattice boundaries. Besides, boundary energies of penetrating Goss grains, which were estimated from misorientationangles of the three grains in the penetrating morphology, satisfied the energetic condition for SSW along the triple junctionline. These results imply that the abnormal grain growth of Goss grains in Fe?3%Si steel occurs by the mechanism of subboundaryenhanced SSW.

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