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首页> 外文期刊>NDT & E international >Detection of spring steel surface decarburization by magnetic hysteresis measurements
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Detection of spring steel surface decarburization by magnetic hysteresis measurements

机译：通过磁滞测量检测弹簧钢表面的脱碳

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摘要

Surface decarburization of steel was non-destructively and quantitatively investigated by magnetic hysteresis. Flat samples were prepared from spring steel 54SiCr6 and decarburized layers of different thickness were produced on their surfaces by annealing at 800 °C in air for 1,4, 8 and 20 h. Three types of treatment were applied on different samples in order to remove the simultaneously appearing surface oxides. The decarburized layers were examined magnetically by hysteresis loops measurements and the results were related to their optically determined depths. The magnetic measurements showed high sensitivity with respect to free ferrite and mixed ferrite/pearlite layers detection even without removal of the oxide layer. The free ferrite layers were easily and quantitatively detected by minor loops measurements with low field amplitude.
机译：通过磁滞对钢的表面脱碳进行了无损定量分析。用弹簧钢54SiCr6制备扁平样品，并通过在800°C的空气中退火1,4、8和20 h在其表面上生产不同厚度的脱碳层。为了去除同时出现的表面氧化物，对不同样品进行了三种处理。通过磁滞回线测量对脱碳层进行了磁性检查，结果与它们的光学确定深度有关。磁性测量结果显示，即使不去除氧化物层，对自由铁氧体和混合铁氧体/珠光体层的检测也具有很高的灵敏度。自由的铁氧体层很容易通过低磁场幅度的小环路测量来定量检测。

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  • 来源
    《NDT & E international》 |2011年第6期|p.490-494|共5页
  • 作者

    O. Perevertov; O. Stupakov; I. Tomas; B. Skrbek;

  • 作者单位

    Institute of Physics of the AS CR, v.v.i, Na Slovance 2, 18221 Prague, Czech Republic;

    Institute of Physics of the AS CR, v.v.i, Na Slovance 2, 18221 Prague, Czech Republic;

    Institute of Physics of the AS CR, v.v.i, Na Slovance 2, 18221 Prague, Czech Republic;

    Technical University of Liberec, Studentska 2, 46117 Liberec, Czech Republic;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    decarburization; magnetic hysteresis; spring steel;

    机译：脱碳磁滞弹簧钢;

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