발간논문

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Vol.38, No.2, 352 ~ 357, 2000
Title
Pesearch Paper / Environment : Analysis of High Temperature Mixed Corrosion Behavior of Fe-Cr Alloys by Computer - Assisted Calculations of Phase Equilibria
권종원Jong Won Kwon,이윤용Yun Yong Lee
Abstract
New types of two-dimensional thermodynamic stability diagrams were presented to predict high temperature corrosion behavior of multi-component alloys in mixed oxidant environments. The new stability diagrams were constructed by computer-assisted phase equilibria calculations of the multi-component reacting system. The usefulness of the new stability diagrams is discussed with the Fe-Cr alloys in oxidizing-chloridizing environments. The new stability diagrams can provide valuable information on the internal oxidation behavior of alloys and the stability of ternary phases such as FeCr₂O₄, which cannot be obtained from the conventional stability diagrams. Using reaction paths on the new stability diagrams, more mechanistic predictions can be made for the mixed corrosion behavior of alloys.
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