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首页> 外文期刊>Materials Science and Engineering >Preparation and characterization of sintered molybdenum doped with MoSi_2/La_2O_3/Y_2O_3 composite particle
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Preparation and characterization of sintered molybdenum doped with MoSi_2/La_2O_3/Y_2O_3 composite particle

机译：MoSi_2 / La_2O_3 / Y_2O_3复合粒子掺杂钼的制备及表征

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摘要

The effect of MoSi_2/La_2O_3/Y_2O_3 (SiLY) composite particle on microstructure and mechanical properties of sintered molybdenum was surveyed in this research. The SiLY was obtained by mechanical milling and then doped into molybdenum by the solid-solid method. The sintered molybdenum (MSiLY) with the addition of SiLY was prepared via the process of powder metallurgy. X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), optical microscope (OM), scanning electron microscopy (SEM), mechanical properties' testing were carried out to characterize the samples. The EDS results showed that elements of the SiLY in sintered molybdenum are composed of O, La, Si, Y and Mo. Microstructural observations showed that the MSiLY has a fine equiaxed grain, and SiLY dispersively distributed in grain interior and at grain boundary. Mechanical properties of sintered molybdenum have been improved significantly by the addition of SiLY. The fine grain structure and the particles distributed in the matrix can improve strength and toughness of sintered molybdenum.
机译：研究了MoSi_2 / La_2O_3 / Y_2O_3（SiLY）复合颗粒对烧结钼组织和力学性能的影响。通过机械研磨获得SiLY，然后通过固-固法将其掺杂到钼中。通过粉末冶金的方法制备了添加了SiLY的钼（MSiLY）。进行了X射线衍射（XRD），能量色散谱（EDS），光学显微镜（OM），扫描电子显微镜（SEM），力学性能测试以表征样品。 EDS结果表明，烧结钼中的SiLY元素由O，La，Si，Y和Mo组成。显微组织观察表明MSiLY具有细等轴晶，并且SiLY分散地分布在晶粒内部和晶界。通过添加SiLY，钼的机械性能得到了显着改善。细小的晶粒结构和分布在基体中的颗粒可以提高烧结钼的强度和韧性。

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  • 来源
    《Materials Science and Engineering》 |2012年第15期|p.497-501|共5页
  • 作者

    Yi Wang; Dezhi Wang; Huayan Liu; Wei Zhu; Xiuqi Zan;

  • 作者单位

    Key Laboratory of Ministry of Education for Non-ferrous Materials Science and Engineering, Changsha 410083, China,Key Laboratory of Hunan Province for Metallurgy and Material Processing of Rare Metals, Changsha 410083, China,School of Materials Science and Engineering, Central South University, Changsha 410083, China;

    Key Laboratory of Ministry of Education for Non-ferrous Materials Science and Engineering, Changsha 410083, China,Key Laboratory of Hunan Province for Metallurgy and Material Processing of Rare Metals, Changsha 410083, China,School of Materials Science and Engineering, Central South University, Changsha 410083, China;

    Key Laboratory of Ministry of Education for Non-ferrous Materials Science and Engineering, Changsha 410083, China,Key Laboratory of Hunan Province for Metallurgy and Material Processing of Rare Metals, Changsha 410083, China,School of Materials Science and Engineering, Central South University, Changsha 410083, China;

    Key Laboratory of Ministry of Education for Non-ferrous Materials Science and Engineering, Changsha 410083, China,Key Laboratory of Hunan Province for Metallurgy and Material Processing of Rare Metals, Changsha 410083, China,School of Materials Science and Engineering, Central South University, Changsha 410083, China;

    Zigong Cemented Carbide Corporation Limited, Zigong 643010, China;

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  • 正文语种 eng
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  • 关键词

    MoSi_2/La_2O_3/Y_2O_3; sintered molybdenum; microstructure; mechanical property;

    机译：MoSi_2 / La_2O_3 / Y_2O_3;烧结钼微观结构机械性能;

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