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Volume 16 Issue 6
Dec.  2009
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Jun-you Liu, Feng Li, Jie Liu, Yi Zhang, and Yu-lei Wang, Micro-analysis of high-temperature oxidation-resistance of a new kind of heat-resistant grid plate in grate-kiln, Int. J. Miner. Metall. Mater., 16(2009), No. 6, pp. 632-639. https://doi.org/10.1016/S1674-4799(10)60004-0
Cite this article as:
Jun-you Liu, Feng Li, Jie Liu, Yi Zhang, and Yu-lei Wang, Micro-analysis of high-temperature oxidation-resistance of a new kind of heat-resistant grid plate in grate-kiln, Int. J. Miner. Metall. Mater., 16(2009), No. 6, pp. 632-639. https://doi.org/10.1016/S1674-4799(10)60004-0
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Metallurgy

Micro-analysis of high-temperature oxidation-resistance of a new kind of heat-resistant grid plate in grate-kiln

  • 通讯作者:

    Jie Liu    E-mail: jack_6859@yahoo.cn

  • To further improve the oxidation-resistance of materials and reduce the cost of grid plates in grate-kiln, a new kind of heat-resistant grid plate was developed. The microstructure of this grid plate with a life more than 18 months was studied by XRD, SEM and EDS techniques. The results show that high hardness, high intensity and good impact property make the new kind of heat-resistant grid plate and its oxide film have a higher resistance to deformation and abrasion at 900-1000℃ Besides, small grain size is beneficial to form a complete protective oxide film. The oxide film composed of SiO2 layer, Cr2O3 layer and Fe2O3 layer is rather thin and bonds closely with the backing. The forming of the chemical stable nickel-rich layer increases the density of Cr2O3 layer.
  • Metallurgy

    Micro-analysis of high-temperature oxidation-resistance of a new kind of heat-resistant grid plate in grate-kiln

    + Author Affiliations
    • To further improve the oxidation-resistance of materials and reduce the cost of grid plates in grate-kiln, a new kind of heat-resistant grid plate was developed. The microstructure of this grid plate with a life more than 18 months was studied by XRD, SEM and EDS techniques. The results show that high hardness, high intensity and good impact property make the new kind of heat-resistant grid plate and its oxide film have a higher resistance to deformation and abrasion at 900-1000℃ Besides, small grain size is beneficial to form a complete protective oxide film. The oxide film composed of SiO2 layer, Cr2O3 layer and Fe2O3 layer is rather thin and bonds closely with the backing. The forming of the chemical stable nickel-rich layer increases the density of Cr2O3 layer.
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