Abstract In this study, nanostructured biodegradable pure Zn, Zn-4 wt. % Mn and Zn-24 wt % Mn alloys were produced by 20 h mechanical alloying and consequent cold pressing and sintering. Structural evolutions were investigated using the X-ray diffraction technique. Also, the microstructure was characterized by scanning electron microscopy. The effects of alloy composition on density, mechanical properties, corrosion behavior in Hank's solution, cell viability and cell attachment were investigated. Crystallite size of the synthesized alloys after 20 h of milling reached to less than 40 nm and remained less than 80 nm after consolidation and sintering for 1 h. Alloys contain MnZn13 as second phase which affect mechanical and corrosion properties. Compressive yield strength of Zn, Zn-4Mn and Zn-24Mn alloys reached from 33 to 290 and 132 MPa and corrosion rate of Zn-4Mn tailored to 0.72 mm/yr. Cell viability and cell attachment show biocompatibility of these alloys. Results demonstrate that Zn-Mn alloy can be a new suitable biodegradable candidate.

中文翻译：

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机械合金化合成纳米结构可生物降解锌锰合金的表征

摘要 在这项研究中，纳米结构的可生物降解纯 Zn，Zn-4 wt。% Mn 和 Zn-24 wt% Mn 合金通过 20 小时机械合金化和随后的冷压和烧结生产。使用 X 射线衍射技术研究了结构演变。此外，通过扫描电子显微镜表征微观结构。研究了合金成分对密度、机械性能、Hank 溶液中的腐蚀行为、细胞活力和细胞附着的影响。研磨 20 小时后合成合金的微晶尺寸达到小于 40 纳米，并在固结和烧结 1 小时后保持小于 80 纳米。合金含有 MnZn13 作为影响机械和腐蚀性能的第二相。Zn的压缩屈服强度，Zn-4Mn 和 Zn-24Mn 合金达到 33 到 290 和 132 MPa，Zn-4Mn 的腐蚀速率调整为 0.72 mm/yr。细胞活力和细胞附着表明这些合金具有生物相容性。结果表明，Zn-Mn 合金是一种新的合适的可生物降解候选材料。