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    Evaluation of borides formed on AISI P20 steel

    New search for: Uslu, I.
    New search for: Comert, H.
    New search for: Ipek, M.
    New search for: Ozdemir, O.
    New search for: Bindal, C.

    AbstractThis study reports on an evaluation of borides formed on AISI P20 steel substrate. Boronizing was performed at 800, 875 and 950°C for 2, 4, 6 and 8h by using Ekabor 2 powders. The hardness of borides measured by means of Vickers indenter was about 1500 HVN. The depth of boride layers depending on temperature and process time was ranged from 10 to 180μm. The presence of borides (e.g., FeB, Fe2B, MnB, CrB) was confirmed by X-ray diffraction (XRD) analysis technique. SEM cross-sectional examinations revealed that borides formed on AISI P20 has columnar morphology. Depending on the process time, fracture toughness of borides formed on the surface of AISI P20 mold steel ranged from 2.79 to 4.79MPam1/2. Kinetic studies show a parabolic relationship between layer thickness and process time, and the activation energy is calculated as 200kJ/mol. Moreover, an attempt was made to investigate the possibility of predicting the iso-thickness of boride layer variation and to establish an empirical relationship between process parameters of boriding and boride layer.

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    Evaluation of borides formed on AISI P20 steel

    New search for: Uslu, I.
    New search for: Comert, H.
    New search for: Ipek, M.
    New search for: Ozdemir, O.
    New search for: Bindal, C.

    AbstractThis study reports on an evaluation of borides formed on AISI P20 steel substrate. Boronizing was performed at 800, 875 and 950°C for 2, 4, 6 and 8h by using Ekabor 2 powders. The hardness of borides measured by means of Vickers indenter was about 1500 HVN. The depth of boride layers depending on temperature and process time was ranged from 10 to 180μm. The presence of borides (e.g., FeB, Fe2B, MnB, CrB) was confirmed by X-ray diffraction (XRD) analysis technique. SEM cross-sectional examinations revealed that borides formed on AISI P20 has columnar morphology. Depending on the process time, fracture toughness of borides formed on the surface of AISI P20 mold steel ranged from 2.79 to 4.79MPam1/2. Kinetic studies show a parabolic relationship between layer thickness and process time, and the activation energy is calculated as 200kJ/mol. Moreover, an attempt was made to investigate the possibility of predicting the iso-thickness of boride layer variation and to establish an empirical relationship between process parameters of boriding and boride layer.

    Access

    Check access
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    Order at Subito €

    Evaluation of borides formed on AISI P20 steel

    New search for: Uslu, I.
    New search for: Comert, H.
    New search for: Ipek, M.
    New search for: Ozdemir, O.
    New search for: Bindal, C.

    AbstractThis study reports on an evaluation of borides formed on AISI P20 steel substrate. Boronizing was performed at 800, 875 and 950°C for 2, 4, 6 and 8h by using Ekabor 2 powders. The hardness of borides measured by means of Vickers indenter was about 1500 HVN. The depth of boride layers depending on temperature and process time was ranged from 10 to 180μm. The presence of borides (e.g., FeB, Fe2B, MnB, CrB) was confirmed by X-ray diffraction (XRD) analysis technique. SEM cross-sectional examinations revealed that borides formed on AISI P20 has columnar morphology. Depending on the process time, fracture toughness of borides formed on the surface of AISI P20 mold steel ranged from 2.79 to 4.79MPam1/2. Kinetic studies show a parabolic relationship between layer thickness and process time, and the activation energy is calculated as 200kJ/mol. Moreover, an attempt was made to investigate the possibility of predicting the iso-thickness of boride layer variation and to establish an empirical relationship between process parameters of boriding and boride layer.

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    Title:

    Evaluation of borides formed on AISI P20 steel

    Contributors:

    Uslu, I. (author) / Comert, H. (author) / Ipek, M. (author) / Ozdemir, O. (author) / Bindal, C. (author)

    Publication date:

    2005-06-13

    Size:

    7 pages

    ISSN:

    0261-3069

    DOI:

    https://doi.org/10.1016/j.matdes.2005.06.013

    Type of media:

    Article (Journal)

    Type of material:

    Electronic Resource

    Language:

    English

    Keywords:

    Borides , Ekabor , Iso-thickness , Hardness , Fracture toughness , Activation energy , Layer depth

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