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The interface bonding mechanism and related mechanical properties of Mg/Al compound materials fabricated by insert molding

机译：嵌件成型Mg / Al复合材料的界面结合机理及相关力学性能

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摘要

To overcome the shortcomings of magnesium alloys such as low strength at an elevated temperature and poor corrosion resistance, the fabrication of Mg/Al compound materials has attracted more and more attention in the recent years. Among the various fabrication methods such as diffusion bonding, friction-stir welding, and fusion welding, insert molding technique has shown some advantages such as low production cost, short processing time and the ability of producing complex shape. However, there are only a few documents about this preparation method. In this paper, the corresponding study is carried out via inserting 6061 aluminum alloy into AZ31 magnesium alloy melt The interface bonding mechanism and its mechanical behavior are investigated as well. It has been found that a good metallurgical bonding can be formed at the interface, which consists of three layers, i.e., Al_3Mg_2, Al_(12)Mg_(17), and Al_(12)Mg_(17)+(Mg) eutectic structure. The average shear strength is 20 MPa, which is close to the reported shear strength of the samples prepared by other methods. This research provides a new insight for the fabrication of Mg/Al compound materials.
机译：为了克服镁合金的缺点，例如在高温下强度低和耐腐蚀性差，近年来，Mg / Al复合材料的制造越来越受到关注。在诸如扩散结合，搅拌摩擦焊和熔融焊接的各种制造方法中，嵌件成型技术已显示出一些优点，例如生产成本低，加工时间短和具有制造复杂形状的能力。但是，关于这种制备方法的文献很少。本文通过将6061铝合金插入AZ31镁合金熔体中进行相应的研究。还研究了界面结合机理及其力学性能。已经发现可以在界面上形成良好的冶金结合，该界面由三层组成，即Al_3Mg_2，Al_（12）Mg_（17）和Al_（12）Mg_（17）+（Mg）共晶结构。平均剪切强度为20 MPa，接近于通过其他方法制备的样品的报道剪切强度。这项研究为制造Mg / Al复合材料提供了新的见识。

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  • 来源
    《Materials Science and Engineering》 |2015年第21期|70-76|共7页
  • 作者

    J.C. Liu; J. Hu; X.Y. Nie; H.X. Li; Q. Du; J.S. Zhang; L.Z. Zhuang;

  • 作者单位

    State Key laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China;

    State Key laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China;

    State Key laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China;

    State Key laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China;

    SINTEF Materials and Chemistry, Trondheim, Norway;

    State Key laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China;

    State Key laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    AZ31 magnesium alloy; 6061 aluminum alloy; Insert molding; Interface; Microstructure; Mechanical properties;

    机译：AZ31镁合金;6061铝合金;嵌件成型;接口;微观结构机械性能;

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