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J. Jpn. Inst. Light Met. 47(2)_ 71- (1997).pdf798.73 kBPDFView/Open
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Title: 動的過冷却を考慮した過共晶Al–Si合金の初晶凝固モデル
Other Titles: Modeling of primary solidification of hypereutectic Al-Si alloy with dynamic undercooling
Authors: 大参, 達也1 Browse this author →KAKEN DB
松浦, 清隆2 Browse this author →KAKEN DB
工藤, 昌行3 Browse this author
伊藤, 洋一4 Browse this author
Authors(alt): Ohmi, Tatsuya1
Matsuura, Kiyotaka2
Kudoh, Masayuki3
Itoh, Youichi4
Keywords: numerical simulation
hypereutectic Al-Si alloy
crystal nucleation
crystal growth
Issue Date: Feb-1997
Publisher: 軽金属学会
Journal Title: 軽金属
Journal Title(alt): Journal of Japan Institute of Light Metals
Volume: 47
Issue: 2
Start Page: 71
End Page: 77
Publisher DOI: 10.2464/jilm.47.71
Abstract: A simplified numerical model is proposed to simulate the crystallization behavior of facet primary crystals of a hypereutectic Al–Si alloy. The alloy is assumed to be solidified in a cooling medium which is at a given temperature, TB. The obtained results are summarized as follows: (1) The average crystal size, d3, decreases as cooling rate, R, increases. When R exceeds a critical level, however, d3 begins to converge to a constant value which depends on TB. (2) The average crystal size depends on the maximum undercooling degree of the liquid phase, ΔTLM. (3) The value of ΔTLM is nearly equal to ΔTm which corresponds to the undercooling degree at the apparent onset of crystallization which is detected from the cooling curve.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 大参 達也

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