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首页> 外文期刊>Materials Science and Engineering >Revealing the influence of Zr micro-alloying and hot extrusion on a novel high ductility Zn-lMg alloy
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Revealing the influence of Zr micro-alloying and hot extrusion on a novel high ductility Zn-lMg alloy

机译：揭示ZR微合金化和热挤出对新型高延性Zn-Lmg合金的影响

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摘要

In this work, a novel high ductility Zn-1Mg alloy was fabricated by Zr (zirconium) micro-alloying followed by hot extrusion. The results revealed that the addition of Zr could refine the microstructure and induce the formation of Zn_(22)Zr phase in as-cast Zn-1Mg alloy. Moreover, the as-extruded Zn-1Mg-0.5Zr alloy was composed of a typical bimodal microstructure, the Zn_(22)Zr phase can effectively stimulate the dynamic recrystallization (DRX) behavior via particle-stimulated nucleation (PSN) mechanism and promote multiple slip during hot extrusion process. At the same time, compared with the as-extruded Zn-lMg alloy, the as-extruded Zn-1Mg-0.5Zr alloy exhibited a more satisfactory combination of strength and ductility, the ultimate tensile strength (UTS) increased from 215 Mpa to 260 Mpa and the elongation dramatically increased from 18.5% to 36.5%. The strengthening-toughening mechanisms were systematically analyzed in this work.
机译：在这项工作中，通过Zr（锆）微合金化，然后用热挤出制造了一种新型的高延性Zn-1mg合金。结果表明，Zr的添加可以优化微观结构并诱导铸造Zn-1Mg合金中的Zn_（22）Zr相的形成。此外，用颗粒刺激的成核（PSN）机制可以有效地刺激Zn_（22）Zr相，Zn_（22）Zr相，Zn_（22）Zr相，Zn_（22）可以有效地刺激动态再结晶（DRX）行为并促进多个在热挤出过程中滑动。与此同时，与挤出的Zn-Lmg合金相比，以挤出的Zn-1mg-0.5Zr合金表现出更令人满意的强度和延展性的组合，最终拉伸强度（UTS）从215MPa增加到260 MPA和伸长率从18.5％增加到36.5％。在这项工作中系统地分析了强化 - 增韧机制。

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  • 来源
    《Materials Science and Engineering》 |2021年第13期|140395.1-140395.12|共12页
  • 作者

    Rui Zhao; Qiangqiang Ma; Longlong Zhang; Jiaxin Zhang; Chunxiang Xu; Yuan Wu; Jinshan Zhang;

  • 作者单位

    College of Materials Science and Engineering Taiyuan University of Technology Taiyuan 030024 PR China Shanxi Key Laboratory of Advanced Magnesium-based Materials Taiyuan 030024 PR China;

    College of Materials Science and Engineering Taiyuan University of Technology Taiyuan 030024 PR China Shanxi Key Laboratory of Advanced Magnesium-based Materials Taiyuan 030024 PR China;

    College of Materials Science and Engineering Taiyuan University of Technology Taiyuan 030024 PR China Shanxi Key Laboratory of Advanced Magnesium-based Materials Taiyuan 030024 PR China;

    College of Materials Science and Engineering Taiyuan University of Technology Taiyuan 030024 PR China Shanxi Key Laboratory of Advanced Magnesium-based Materials Taiyuan 030024 PR China;

    College of Materials Science and Engineering Taiyuan University of Technology Taiyuan 030024 PR China Shanxi Key Laboratory of Advanced Magnesium-based Materials Taiyuan 030024 PR China;

    Beijing Advanced Innovation Center for Materials Genome Engineering State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing Beijing 100083 PR China;

    College of Materials Science and Engineering Taiyuan University of Technology Taiyuan 030024 PR China Shanxi Key Laboratory of Advanced Magnesium-based Materials Taiyuan 030024 PR China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Zn-lMg alloys; Zr micro-alloying; Zrt_(22)Zr phase; DRX; Mechanical properties;

    机译：Zn-LMG合金;ZR微合金化;Zrt_（22）Zr相;DRX;机械性能;

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