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首页> 外文期刊>Materials Science and Engineering >Additive manufacturing of Zr-based metallic glass structures on 304 stainless steel substrates via V/Ti/Zr intermediate layers
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Additive manufacturing of Zr-based metallic glass structures on 304 stainless steel substrates via V/Ti/Zr intermediate layers

机译：通过V / Ti / Zr中间层在304不锈钢基板上增材制造Zr基金属玻璃结构

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摘要

Welding of dissimilar metals is challenging, particularly between crystalline metals and metallic glasses (MGs). In this study, Zr65.7Cu15.6Ni11.7Al3.7Ti3.3(wt%) MG structures were built on 304 stainless steel (SS) substrates by laser-foil-printing (LFP) additive manufacturing technology in which MG foils were laser welded layer-by-layer onto the SS substrate with a transition route, i.e., SS → V → Ti → Zr → MG. The direct welding of MG on SS would lead to the formation of various brittle intermetallics and the consequent peeling off of the welded MG foils from the SS substrate, which could be resolved via the use of V/Ti/Zr intermediate layers. The chemical composition, formed phases, and micro-hardness were characterized in the dissimilar joints by energy dispersive spectroscopy, X-ray diffraction, and micro-indentation. Since the intermediate materials were highly compatible with the base metals or the adjacent intermediate metals, undesirable intermetallics were not detected in the dissimilar joint. The bonding tensile strength between the SS substrate and the MG part with intermediate layers was measured about 477 MPa.
机译：异种金属的焊接具有挑战性，特别是在结晶金属和金属玻璃（MG）之间。在这项研究中，Zr65.7Cu15.6Ni11.7Al3.7Ti3.3（wt％）MG结构通过激光箔印刷（LFP）增材制造技术在304不锈钢（SS）基板上构建而成，其中MG箔片被激光焊接。通过过渡路径（即SS→V→Ti→Zr→MG）逐层层叠到SS基板上。将MG直接焊接在SS上会导致形成各种脆性金属间化合物，并因此导致焊接的MG箔片从SS基材上剥落，这可以通过使用V / Ti / Zr中间层来解决。通过能量色散光谱，X射线衍射和显微压痕对异种接头的化学成分，形成的相和显微硬度进行了表征。由于中间材料与贱金属或相邻的中间金属高度相容，因此在异种接头中未检测到不良的金属间化合物。 SS基板和带有中间层的MG零件之间的粘结拉伸强度约为477 MPa。

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  • 来源
    《Materials Science and Engineering》 |2018年第27期|185-195|共11页
  • 作者

    Yingqi Li; Yiyu Shen; Chia-Hung Hung; Ming C. Leu; Hai-Lung Tsai;

  • 作者单位

    Department of Mechanical and Aerospace Engineering, Missouri University of Science and Technology;

    Department of Mechanical and Aerospace Engineering, Missouri University of Science and Technology;

    Department of Mechanical and Aerospace Engineering, Missouri University of Science and Technology;

    Department of Mechanical and Aerospace Engineering, Missouri University of Science and Technology;

    Department of Mechanical and Aerospace Engineering, Missouri University of Science and Technology;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Additive manufacturing; Metallic glass; Stainless steel; Dissimilar metals welding;

    机译：增材制造;金属玻璃;不锈钢;异种金属焊接;

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