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    Volume 45, Issue 3 (May 2017)

    Analysis of Relationships Between Three-Dimensional Magnetic Memory Signals and Artificial Defects Under Tensile Load

    (Received 24 June 2015; accepted 29 March 2016)

    Published Online: 24 May 2017

    CODEN: JTEVAB

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    Abstract

    This paper mainly discusses the relationships between three-dimensional magnetic memory signals and artificial defects under different load levels. The correlations between the defect signal characteristic parameters and applied stress were analyzed. The magnetic signals at the surface of FV520B steels were measured by a 3D magnetic sensor. It has been concluded that three-dimensional magnetic signals had different detection sensitivity to the defects in different directions, and the defects can be accurately recognized based on the distinctive signal features. Additionally, the peak value of the tangential component and the peak-to-peak value of the normal component (i.e., Bxp and Bzp-p) presented different characteristics in elastic and plastic deformation stages with the increase of applied stress. The amplitude changes of the tangential component and maximum gradient value of the normal component (i.e., ΔBx and KG) were capable of estimating the mechanical damage degree of ferromagnetic materials.


    Author Information:

    Li, C.
    School of Materials Science and Engineering, Hebei Univ. of Technology, Tianjin,

    National Key Lab for Remanufacturing, Academy of Armored Forces Engineering, Beijing,

    Dong, L.
    National Key Lab for Remanufacturing, Academy of Armored Forces Engineering, Beijing,

    Wang, H.
    National Key Lab for Remanufacturing, Academy of Armored Forces Engineering, Beijing,

    Xu, B.
    National Key Lab for Remanufacturing, Academy of Armored Forces Engineering, Beijing,

    Li, G.
    School of Materials Science and Engineering, Hebei Univ. of Technology, Tianjin,


    Stock #: JTE20150276

    ISSN:0090-3973

    DOI: 10.1520/JTE20150276

    Author
    Title Analysis of Relationships Between Three-Dimensional Magnetic Memory Signals and Artificial Defects Under Tensile Load
    Symposium ,
    Committee A06