A phase-field study on the oxidation behavior of Ni considering heat conduction

Phase-field modeling approach has been used to study the oxidation behavior of pure Ni when considering heat conduction. In this calculation, the dependence of the coefficient of the Cahn–Hilliard equation Lc on the temperature T was considered. To this end, high-temperature oxidation experiments an...

Full description

Saved in:
Bibliographic Details
Published in:Acta mechanica Sinica 2016-10, Vol.32 (5), p.881-890
Main Authors: Wang, Chao, Ai, Shigang, Fang, Daining
Format: Article
Language:English
Subjects:
Algorithms
Classical and Continuum Physics
Computational Intelligence
Conduction
Conduction cooling
Conduction heating
Conductive heat transfer
Engineering
Engineering Fluid Dynamics
Film thickness
Heat conduction
Heat transfer
High temperature
Mathematical models
Modelling
Oxidation
Oxidation rate
Oxidation resistance
Oxide coatings
Research Paper
Temperature dependence
Theoretical and Applied Mechanics
Thermal protection
Thermal resistance
Thermogravimetry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Phase-field modeling approach has been used to study the oxidation behavior of pure Ni when considering heat conduction. In this calculation, the dependence of the coefficient of the Cahn–Hilliard equation Lc on the temperature T was considered. To this end, high-temperature oxidation experiments and phase-field modeling for pure Ni were performed in air under atmospheric pressure at 600,700, and 800？C. The oxidation rate was measured by thermogravimetry and Lc at these temperatures was determined via interactive algorithm. With the Lc-T relationship constructed, oxidation behavior of Ni when considering heat conduction was investigated. The influence of temperature boundaries on the oxidation degree, oxide film thickness, and specific weight gain were discussed. The phase-field modeling approach proposed in this study will give some highlights of the oxidation resistance analysis and cooling measures design of thermal protection materials.
ISSN:0567-7718
1614-3116
DOI:10.1007/s10409-016-0593-z