生物可降解医用镁合金体内外降解行为研究进展
Research progress in degradation behavior of biodegradable medical Mg-based alloys in vivo and in vitro
查看参考文献62篇
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文摘
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作为新一代医用可降解生物材料,镁合金凭借其良好的生物相容性、独特的降解性、优异的力学传递性,被誉为 "革命性的医用金属材料"。然而,镁合金耐蚀性能较差,存在降解过快以及降解不均匀等现象。本文从微合金化、热加工工艺、塑性变形工艺以及表面改性4种处理方式全面介绍了目前改善镁合金降解性能的研究进展,并对比了不同工艺处理方式下医用镁合金的体内外降解速率和降解模式,揭示了镁合金不同工艺处理条件下的组织演变、膜层特性对Cl~- 的膜层破坏机制及三维降解形貌的影响规律,建立起在模拟液中不同工艺条件与镁合金腐蚀降解速率的关联数据分析模型,最后指出从多角度解析微观结构对镁合金降解性能的作用机制,构建微观组织对镁合金降解寿命预测模型是未来该领域的研究重点。 |
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其他语种文摘
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As a new generation of medical degradable biomaterials,magnesium alloys were known as "revolutionary medical metal materials"due to their good biocompatibility,unique degradability and excellent mechanical transmission.However,the corrosion resistance of magnesium alloys is poor and there are phenomena such as rapid and uneven degradation.The research progress in improving the degradation properties of magnesium alloys was introduced from four aspects:microalloying,heat treatment process,plastic deformation and surface modification.The degradation rate and degradation modes of medical magnesium alloys in vivo and in vitro under different processing methods were compared.The influence of microstructure evolution and film characteristics of magnesium alloys under different processing conditions on the destruction mechanism of the Cl~- for the film layer and the three-dimensional degradation morphology were revealed.The correlation data analysis model between different process conditions and corrosion degradation rate of magnesium alloys in simulated solution was established.Finally,it was pointed out that the focus of future research in this field is to analyse the main action mechanism of microstructure on magnesium alloys degradation properties from multiple perspectives and to build a prediction model of microstructure on magnesium alloys degradation life. |
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来源
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材料工程
,2021,49(5):24-37 【核心库】
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DOI
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10.11868/j.issn.1001-4381.2020.000338
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关键词
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可降解镁合金
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体内降解
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体外降解
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降解速率
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膜层特征
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地址
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华北理工大学, 教育部现代冶金技术重点实验室, 河北, 唐山, 063210
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语种
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中文 |
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文献类型
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综述型 |
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ISSN
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1001-4381 |
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学科
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基础医学;金属学与金属工艺 |
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基金
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河北省自然科学基金青年基金
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辽宁省自然科学基金
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河北省省属高校基本科研业务费
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河北省高等学校科学技术研究项目
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唐山市科学技术研究与发展计划
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北京科技大学新金属材料国家重点实验室基金
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文献收藏号
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CSCD:6973159
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