발간논문

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Vol.18, No.5, 407 ~ 416, 1980
Title
The influence of Solidified Structure on solution Behaviors of Nonequilibrium Second Phase
윤의박Eui Pak Yoon, 안갑우Kap Suk Ahn, 서창제Chang Jai Suh, 허태수Tae Soo Huh
Abstract
The solution kinetics of nonequilibrium second phase of a segregated binary alloy in the later stages of solution treatment have not yet been made theoretically clear. This paper attempted mainly to investigate this behaviour by Yoon`s approximate analysis given by a simple model based upon primary arm spacing as an effective diffusion distance of the second phase which has crystallized at the boundary of dendrite element. For this purpose, we used the high magnesium Al-8% Mg alloy which is expected to be used for transport of liguified natural gas. The theoretically calculated results are in the approximate agreement with that of experiments for complete dissolution time and solution kinetics (expecially at the later stages) of β-phase. The Yoon`s approximate analysis was in better agreement with the present experimental results than the Flemings conventional analysis
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