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Austenite Grain Growth

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Hideaki Suito – One of the best experts on this subject based on the ideXlab platform.

  • effects of oxide particles and solute elements on Austenite Grain Growth in fe 0 05mass c and fe 10mass ni alloys
    Isij International, 2008
    Co-Authors: Andrey Vladimirovich Karasev, Hideaki Suito

    Abstract:

    The inhibition effects of oxide particles and solute elements on Austenite Grain Growth have been studied in an Fe–0.05mass%C and Fe–10mass%Ni alloys deoxidized with Mn–Si, Ti, Mg, Zr and Ce as a function of content of soluble deoxidant elements and holding time at 1200°C. Total surface area of Austenite Grains per unit volume which is inversely proportional to Austenite Grain size is analyzed as a function of total surface area of particles per unit volume and content of soluble deoxidant elements. It is found that in Mn–Si, Ti and Mg deoxidations, the Austenite Grain size is controlled only by the effect of particle pinning, while in Zr and Ce deoxidations the Austenite Grain size is controlled by both particle pinning and solute drag. The inhibition effect of soluble Zr and Ce increases significantly with increasing their contents. The effect of particle dragging in Ce deoxidation increases with increasing the holding time at 1200°C. The contribution of particle pinning, particle dragging and solute drag to Austenite Grain Growth is estimated as a function of deoxidant elements and holding time at 1200°C.

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  • Effects of Oxide Particles and Solute Elements on Austenite Grain Growth in Fe–0.05mass%C and Fe–10mass%Ni Alloys
    ISIJ International, 2008
    Co-Authors: Andrey Vladimirovich Karasev, Hideaki Suito

    Abstract:

    The inhibition effects of oxide particles and solute elements on Austenite Grain Growth have been studied in an Fe–0.05mass%C and Fe–10mass%Ni alloys deoxidized with Mn–Si, Ti, Mg, Zr and Ce as a function of content of soluble deoxidant elements and holding time at 1200°C. Total surface area of Austenite Grains per unit volume which is inversely proportional to Austenite Grain size is analyzed as a function of total surface area of particles per unit volume and content of soluble deoxidant elements. It is found that in Mn–Si, Ti and Mg deoxidations, the Austenite Grain size is controlled only by the effect of particle pinning, while in Zr and Ce deoxidations the Austenite Grain size is controlled by both particle pinning and solute drag. The inhibition effect of soluble Zr and Ce increases significantly with increasing their contents. The effect of particle dragging in Ce deoxidation increases with increasing the holding time at 1200°C. The contribution of particle pinning, particle dragging and solute drag to Austenite Grain Growth is estimated as a function of deoxidant elements and holding time at 1200°C.

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  • inhibition of Austenite Grain Growth by particles and solute elements in fe 0 05 c and fe 10 ni alloys deoxidized by mn si ti mg zr and ce
    Materials Science Forum, 2007
    Co-Authors: Andrey Vladimirovich Karasev, Ryo Inoue, Hideaki Suito

    Abstract:

    The inhibition effect of inclusion particles and soluble elements on the Austenite Grain Growth has been studied in Fe-0.05% C and Fe-10% Ni alloys deoxidized by Mn (1.0%) – Si (0.2%), Ti (0.05%), …

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Andrey Vladimirovich Karasev – One of the best experts on this subject based on the ideXlab platform.

  • effects of oxide particles and solute elements on Austenite Grain Growth in fe 0 05mass c and fe 10mass ni alloys
    Isij International, 2008
    Co-Authors: Andrey Vladimirovich Karasev, Hideaki Suito

    Abstract:

    The inhibition effects of oxide particles and solute elements on Austenite Grain Growth have been studied in an Fe–0.05mass%C and Fe–10mass%Ni alloys deoxidized with Mn–Si, Ti, Mg, Zr and Ce as a function of content of soluble deoxidant elements and holding time at 1200°C. Total surface area of Austenite Grains per unit volume which is inversely proportional to Austenite Grain size is analyzed as a function of total surface area of particles per unit volume and content of soluble deoxidant elements. It is found that in Mn–Si, Ti and Mg deoxidations, the Austenite Grain size is controlled only by the effect of particle pinning, while in Zr and Ce deoxidations the Austenite Grain size is controlled by both particle pinning and solute drag. The inhibition effect of soluble Zr and Ce increases significantly with increasing their contents. The effect of particle dragging in Ce deoxidation increases with increasing the holding time at 1200°C. The contribution of particle pinning, particle dragging and solute drag to Austenite Grain Growth is estimated as a function of deoxidant elements and holding time at 1200°C.

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  • Effects of Oxide Particles and Solute Elements on Austenite Grain Growth in Fe–0.05mass%C and Fe–10mass%Ni Alloys
    ISIJ International, 2008
    Co-Authors: Andrey Vladimirovich Karasev, Hideaki Suito

    Abstract:

    The inhibition effects of oxide particles and solute elements on Austenite Grain Growth have been studied in an Fe–0.05mass%C and Fe–10mass%Ni alloys deoxidized with Mn–Si, Ti, Mg, Zr and Ce as a function of content of soluble deoxidant elements and holding time at 1200°C. Total surface area of Austenite Grains per unit volume which is inversely proportional to Austenite Grain size is analyzed as a function of total surface area of particles per unit volume and content of soluble deoxidant elements. It is found that in Mn–Si, Ti and Mg deoxidations, the Austenite Grain size is controlled only by the effect of particle pinning, while in Zr and Ce deoxidations the Austenite Grain size is controlled by both particle pinning and solute drag. The inhibition effect of soluble Zr and Ce increases significantly with increasing their contents. The effect of particle dragging in Ce deoxidation increases with increasing the holding time at 1200°C. The contribution of particle pinning, particle dragging and solute drag to Austenite Grain Growth is estimated as a function of deoxidant elements and holding time at 1200°C.

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  • inhibition of Austenite Grain Growth by particles and solute elements in fe 0 05 c and fe 10 ni alloys deoxidized by mn si ti mg zr and ce
    Materials Science Forum, 2007
    Co-Authors: Andrey Vladimirovich Karasev, Ryo Inoue, Hideaki Suito

    Abstract:

    The inhibition effect of inclusion particles and soluble elements on the Austenite Grain Growth has been studied in Fe-0.05% C and Fe-10% Ni alloys deoxidized by Mn (1.0%) – Si (0.2%), Ti (0.05%), …

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Yazheng Liu – One of the best experts on this subject based on the ideXlab platform.

  • Austenite Grain Growth and its effect on splitting fracture property of a v n microalloyed medium carbon steel connecting rod
    Journal of Iron and Steel Research International, 2019
    Co-Authors: Chaolei Zhang, Wen Fang, Bao-run Cai, Xiao-hang Sun, Yazheng Liu

    Abstract:

    The Growth behaviour of Austenite Grain in a V–N microalloyed medium carbon steel and its effect on splitting fracture property were investigated by mechanical tests, fracture morphology and microstructure analysis. When the heating temperature is 800 °C, the Austenite Grain size is 7.6 μm, and the fracture surface is uneven with the impact energy of 235.9 J. When the heating temperature increases to 1100 °C, the Austenite Grain size grows up to 65.5 μm and the impact fracture surface is much more even with the impact energy of 13.6 J. It is believed that the coarse Austenite Grain size of 65.5 μm is beneficial for the splitting fracture property of V–N microalloyed medium carbon steel connecting rod. In addition, Austenite Grain sizes of V–N microalloyed medium carbon steel increase with the increasing in heating temperature and holding time. Then, a Grain Growth model is established to predict Austenite Grain Growth behaviour.

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  • Austenite Grain Growth and its effect on splitting fracture property of a V–N microalloyed medium carbon steel connecting rod
    Journal of Iron and Steel Research International, 2019
    Co-Authors: Chaolei Zhang, Wen Fang, Bao-run Cai, Xiao-hang Sun, Yazheng Liu

    Abstract:

    The Growth behaviour of Austenite Grain in a V–N microalloyed medium carbon steel and its effect on splitting fracture property were investigated by mechanical tests, fracture morphology and microstructure analysis. When the heating temperature is 800 °C, the Austenite Grain size is 7.6 μm, and the fracture surface is uneven with the impact energy of 235.9 J. When the heating temperature increases to 1100 °C, the Austenite Grain size grows up to 65.5 μm and the impact fracture surface is much more even with the impact energy of 13.6 J. It is believed that the coarse Austenite Grain size of 65.5 μm is beneficial for the splitting fracture property of V–N microalloyed medium carbon steel connecting rod. In addition, Austenite Grain sizes of V–N microalloyed medium carbon steel increase with the increasing in heating temperature and holding time. Then, a Grain Growth model is established to predict Austenite Grain Growth behaviour.

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  • The Effect of Size and Distribution of MnS Inclusions on the Austenite Grain Growth in a Low Cost Hot Forged Steel
    steel research international, 2017
    Co-Authors: Fan Zhao, Yong Yang, Bo Jiang, Chaolei Zhang, Yazheng Liu

    Abstract:

    The size and thermal stability of Manganese Sulfide (MnS) inclusions in two low cost hot forged steels with no microalloying elements are carefully investigated. Based on the results, the Austenite Grain Growth behavior of the two steels are studied and the effect of MnS inclusions on the Austenite Grain Growth are discussed using an optical microscope, a scanning electron microscopy, and a confocal scanning laser microscopy. Results show that the MnS inclusions hold a favorable thermal stability and do not dissolve in the steel heated at 1250 °C for 30 min. Austenite Grains of the steel with larger quantities of smaller size of MnS inclusions are significantly finer than that of the steel with less and larger size of MnS inclusions heated at a temperature above 1000 °C. The differences in Grain size become greater, as the heating temperature increases. The pinning effect of MnS inclusions plays an important role during Austenite Grain Growth, when the Austenite Grain size exceeds the average spacing of MnS inclusions. The results indicate that large quantities of small MnS inclusions can be used to inhibit Austenite Grain Growth during heating process in a low cost hot forged steel, where expensive microalloying elements are removed.

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