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首页> 外文期刊>Acta biomaterialia >Local intragranular misorientation accelerates corrosion in biodegradable Mg
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Local intragranular misorientation accelerates corrosion in biodegradable Mg

机译：局部纹理无论如何加速生物降解的MG中的腐蚀

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摘要

Mg-based implants are used in biomedical applications predominantly because of their degradable property. In this paper, the effect of local misorientations (intragranular misorientation) on the corrosion behavior of high-purity Mg (HPM) was systematically investigated according to microstructure characterization and corrosion measurements. The results showed that local misorientation introduced into grains by deformation could result in corrosion around the grain boundary (GB), which ultimately reduces the corrosion resistance of HPM. After removing the local misorientation by annealing, the corrosion around GB could be eliminated. This work is expected to inspire better control over the degradation behaviors of biomedical Mg through microstructure design to be used for various biomedical applications.
机译：基于Mg的植入物主要是因为它们的可降解性质主要用于生物医学应用中。 本文根据微观结构表征和腐蚀测量，系统地研究了局部错误化（intragranuliseation）对高纯度Mg（HPM）腐蚀行为的影响。 结果表明，通过变形引入晶粒的局部错位可能导致晶界（GB）的腐蚀，最终降低了HPM的耐腐蚀性。 通过退火去除本地杂乱无章后，可以消除GB周围的腐蚀。 这项工作预计将通过微观结构设计激发更好地控制生物医学MG的降解行为，以用于各种生物医学应用。

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  • 来源
    《Acta biomaterialia》 |2020年第2020期|共11页
  • 作者

    Wang Wenhui; Wu Hongliu; Sun Yu; Yan Jun; Zhang Lei; Zhang Shaoxiang; Ni Jiahua; Song Yang; Zhang Xiaonong;

  • 作者单位

    Shanghai Jiao Tong Univ Sch Mat Sci &

    Engn State Key Lab Met Matrix Composites Shanghai 200240;

    Shanghai Jiao Tong Univ Sch Mat Sci &

    Engn State Key Lab Met Matrix Composites Shanghai 200240;

    Shanghai Jiao Tong Univ Sch Mat Sci &

    Engn State Key Lab Met Matrix Composites Shanghai 200240;

    Shanghai Jiao Tong Univ Affiliated Peoples Hosp 6 Dept Gen Surg Shanghai 200233 Peoples R China;

    Suzhou Origin Med Technol Co Ltd Suzhou 215513 Jiangsu Peoples R China;

    Suzhou Origin Med Technol Co Ltd Suzhou 215513 Jiangsu Peoples R China;

    Harvard Univ John A Paulson Sch Engn &

    Appl Sci 29 Oxford St Cambridge MA 02138 USA;

    Georgia Inst Technol Dept Biomed Engn Atlanta GA 30332 USA;

    Shanghai Jiao Tong Univ Sch Mat Sci &

    Engn State Key Lab Met Matrix Composites Shanghai 200240;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 普通生物学;
  • 关键词

    Mg; Corrosion; Microstructure; Local misorientation; Grain boundary (GB);

    机译：MG;腐蚀;微观结构;局部杂乱;晶界（GB）;

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