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首页> 外文期刊>Journal of Materials Research >Influence of precipitates on the magnetic properties of Fe-Cr-Mo alloys studied by X-ray diffraction, Mossbauer spectroscopy and vibrating sample magnetometry
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Influence of precipitates on the magnetic properties of Fe-Cr-Mo alloys studied by X-ray diffraction, Mossbauer spectroscopy and vibrating sample magnetometry

机译：X射线衍射，Mossbauer光谱和振动样品磁法研究了析出物对Fe-Cr-Mo合金磁性能的影响

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摘要

X-ray diffraction (XRD), transmission Mossbauer spectroscopy, and vibrating sample magnetometry were used to study the influence of precipitates on the magnetic properties of aged Fe-Cr-Mo alloys. XRD patterns and Mossbauer spectra showed that the alloys have body-centered cubic structure similar to that of α-Fe. Small amounts of precipitates were also identified with relative fraction found to be related to Mo content, aging times, and temperatures. Magnetic measurements showed that the increase in the density of precipitates contributes significantly to the increase in the magnetic hardness of the material. This mechanism is related to a process of pinning of magnetic domain walls. It was also found that saturation magnetization is affected by the Mo content in the alloy. The techniques used in this work were shown to be very useful to understand the mechanisms through which the formation of precipitates affects the magnetic properties of the alloys and may be used as complement to the usual microscopy-based techniques for this purpose.
机译：利用X射线衍射（XRD），透射莫斯鲍尔光谱和振动样品磁法研究了沉淀物对时效Fe-Cr-Mo合金磁性能的影响。 XRD图谱和Mossbauer光谱表明，该合金具有类似于α-Fe的体心立方结构。还鉴定出少量沉淀物，其相对分数与Mo含量，老化时间和温度有关。磁性测量表明，析出物密度的增加显着地有助于材料的磁性硬度的增加。该机制与磁畴壁的钉扎过程有关。还发现饱和磁化强度受合金中Mo含量的影响。这项工作中使用的技术对理解沉淀物形成影响合金磁性能的机理非常有用，并且可以用作常规基于显微镜的技术的补充。

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  • 来源
    《Journal of Materials Research》 |2017年第7期|1316-1323|共8页
  • 作者

    Kleyton J. Camelo; Francisco C.Oliveira Junior; Manoel R.da Silva; Igor F.Vasconcelos;

  • 作者单位

    Department of Metallurgical and Material Engineering, Universidade Federal do Ceara, Fortaleza 60440-900, CE, Brazil;

    Department of Metallurgical and Material Engineering, Universidade Federal do Ceara, Fortaleza 60440-900, CE, Brazil;

    Institute of Physics and Chemistry, Universidade Federal de Itajuba, Itajuba 37500-903, MG, Brazil;

    Department of Metallurgical and Material Engineering, Universidade Federal do Ceará, Fortaleza 60440-900, CE, Brazil;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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