Evaluation of three-dimensional solidification microstructures and anisotropic solid-liquid interface energy

Research Project

Project/Area Number	25820374
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Multi-year Fund
Research Field	Metal making/Resorce production engineering
Research Institution	Akita University
Principal Investigator	Natsume Yukinobu 秋田大学, 工学(系)研究科(研究院), 准教授 (80632752)
Research Collaborator	ENOKI Masaya KURAHASHI Taeki
Project Period (FY)	2013-04-01 – 2016-03-31
Project Status	Completed (Fiscal Year 2015)
Budget Amount *help	¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000) Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000) Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000) Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords	凝固 / デンドライト / シリアルセクショニング / 凝固組織 / フェーズフィールド法
Outline of Final Research Achievements	Columnar and feather dendritic structures of Al-Si alloy were observed using by three-dimensional serial sectioning method. The mechanism of feather dendritic growth was discussed by observing the three-dimensional microstructure. Moreover, the new method to measure anisotropic solid-liquid interface energy by comparing three-dimensional observations and phase-field simulations of dendritic microstructure was discussed. We confirmed that this method would be useful for the measurement of anisotropic solid-liquid interface energy and the other physical properties of alloys.