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Vol.3(1981) >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10649/308

Title: 1次元熱物質移動解析による合金の擬固の特徴
Other Titles: Characteristics of alloy solidification obtained by one dimentional heat and mass transfer analysis
Authors: 梅村, 晃由
本間, 豊
Authors Affiliation: 長岡技術科学大学
Issue Date: 27-Feb-1982
Publisher: 長岡技術科学大学
Journal Title: 長岡技術科学大学研究報告
Volume: 3
Start page: 19
End page: 26
Abstract: The combined equations of heat and mass transfer and reaction kinetics, called microscopic equations of solidification, were numerically solved in one dimensional finite region in the scale of dendrite arm spacing.An implicit finite deference method that involves a floating time difference was effectively used in calculating the distributions of temperature and concentration of solute and the rate of growth of interface in simultaneous manner. Through the calculations with varing the condition of heat extraction and the composition of Al-Cu alloy, following have been clarified; (1) exceegingly flatter distributions of temperature than concentration, (2) conditions of that extraction in which Tillers’ or Scheils’ equation of microsegregation is valid, (3) the amount of the kinetic and the constitutional supercoolings, (4) the dependence of the rate of growth of interface on the enrichment of solute in liquid, (5) independence of alloy solidification from direction of heat flow.
language: ja
Contents Version: publisher
URI: http://hdl.handle.net/10649/308
ISSN: 0388-5631
Appears in Collections:Vol.3(1981)

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