A theoretical model and phase field simulation on the evolution of interface roughness in the oxidation process

Fan Yang; Dai Ning Fang; Bin Liu

doi:10.1088/0965-0393/20/1/015001

A theoretical model and phase field simulation on the evolution of interface roughness in the oxidation process

Fan Yang, Dai Ning Fang, Bin Liu^*

^*Corresponding author for this work

Tsinghua University

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

An oxidation kinetics model is developed to account for the effects of the oxidation interface curvature and the oxidation-induced volume change or Pilling-Bedworth ratio. For the oxidation of Fe-Cr-Al-Y alloy fiber, the predictions agree well with experimental results. By considering the influence of the oxidation interface curvature on oxidation rates, the evolution of fluctuant oxidation interface is predicted. We also developed the phase field method (PFM) to simulate the evolution of the interface roughness. Both the theoretical model and the PFM results show that the interface will become smooth during high temperature oxidation. Stress distribution and evolution are calculated by PFM, which indicates that the stress level decreases as the interface morphology evolves.

Original language	English
Article number	015001
Journal	Modelling and Simulation in Materials Science and Engineering
Volume	20
Issue number	1
DOIs	https://doi.org/10.1088/0965-0393/20/1/015001
Publication status	Published - Jan 2012
Externally published	Yes

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Yang, F., Fang, D. N., & Liu, B. (2012). A theoretical model and phase field simulation on the evolution of interface roughness in the oxidation process. Modelling and Simulation in Materials Science and Engineering, 20(1), Article 015001. https://doi.org/10.1088/0965-0393/20/1/015001

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abstract = "An oxidation kinetics model is developed to account for the effects of the oxidation interface curvature and the oxidation-induced volume change or Pilling-Bedworth ratio. For the oxidation of Fe-Cr-Al-Y alloy fiber, the predictions agree well with experimental results. By considering the influence of the oxidation interface curvature on oxidation rates, the evolution of fluctuant oxidation interface is predicted. We also developed the phase field method (PFM) to simulate the evolution of the interface roughness. Both the theoretical model and the PFM results show that the interface will become smooth during high temperature oxidation. Stress distribution and evolution are calculated by PFM, which indicates that the stress level decreases as the interface morphology evolves.",

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AB - An oxidation kinetics model is developed to account for the effects of the oxidation interface curvature and the oxidation-induced volume change or Pilling-Bedworth ratio. For the oxidation of Fe-Cr-Al-Y alloy fiber, the predictions agree well with experimental results. By considering the influence of the oxidation interface curvature on oxidation rates, the evolution of fluctuant oxidation interface is predicted. We also developed the phase field method (PFM) to simulate the evolution of the interface roughness. Both the theoretical model and the PFM results show that the interface will become smooth during high temperature oxidation. Stress distribution and evolution are calculated by PFM, which indicates that the stress level decreases as the interface morphology evolves.

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A theoretical model and phase field simulation on the evolution of interface roughness in the oxidation process

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