Study on the in Vitro Degradation Behavior of Commercial Zn– 4%Al–Sr Alloy for Biomedical Applications

Yang Liu; Zhongyi Yin; Yue Liu; Cong Geng; Xu Chen; Junrui Xu; Jinfeng Peng

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Study on the in Vitro Degradation Behavior of Commercial Zn– 4%Al–Sr Alloy for Biomedical Applications

机译：商业化生物医学应用Zn–4％Al–Sr合金的体外降解行为研究

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Zn and Zn-based alloys have been recognized as potential biodegradable materials, due to their proven biocompatibility and lower corrosion rates compared to Mg alloys. However, pure Zn has poor mechanical properties while Zn–4wt.% Al alloy (Zn–4Al) degrades in a nonuniform manner. In this study, Sr was used as a promising alloying element to improve the uniform corrosion properties of Zn– 4Al alloy. Microstructure and in vitro degradation behavior of Zn–4Al alloys with addition of different concentrations of Sr (0–0.15 wt%) were systematically investigated. Increasing Sr addition progressively decreased the volume fraction of primary η-Zn phase and progressively increased the (β+η) lamellar eutectic morphology. The alloy with 0.1 wt% Sr displayed the best corrosion resistance. Most importantly, the Zn–4Al–0.1Sr alloy exhibited a more uniform corrosion mode in Hanks' solution, which could reduce stress concentration and rapid reduction in the mechanical integrity.

机译：锌和锌基合金由于与镁合金相比具有良好的生物相容性和较低的腐蚀速率，因此被认为是潜在的可生物降解材料。但是，纯锌的机械性能较差，而Zn–4wt。％的铝合金（Zn–4Al）会以不均匀的方式降解。在这项研究中，Sr被用作一种有希望的合金元素，以改善Zn-4Al合金的均匀腐蚀性能。系统地研究了添加不同浓度的Sr（0-0.15 wt％）的Zn-4Al合金的显微组织和体外降解行为。增加Sr的添加量会逐渐降低初级η-Zn相的体积分数，并逐渐增加（β+η）层状共晶形态。具有0.1 wt％Sr的合金显示出最佳的耐腐蚀性。最重要的是，Zn–4Al–0.1Sr合金在汉克斯溶液中表现出更均匀的腐蚀模式，这可能会降低应力集中并迅速降低机械完整性。

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《International Journal of Electrochemical Science》 |2018年第2期|共16页
作者
Yang Liu; Zhongyi Yin; Yue Liu; Cong Geng; Xu Chen; Junrui Xu; Jinfeng Peng;
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1. Study on the in Vitro Degradation Behavior of Commercial Zn– 4%Al–Sr Alloy for Biomedical Applications [J] . Yang Liu, Zhongyi Yin, Yue Liu, International Journal of Electrochemical Science . 2018,第2期

机译：商业化生物医学应用Zn–4％Al–Sr合金的体外降解行为研究
2. In vitro degradation and electrochemical corrosion evaluations of microarc oxidized pure Mg, Mg-Ca and Mg-Ca-Zn alloys for biomedical applications [J] . Yaokun Pan, Siyu He, Diangang Wang, Materials science & engineering . 2015,第feba期

机译：微弧氧化纯Mg，Mg-Ca和Mg-Ca-Zn合金在生物医学应用中的体外降解和电化学腐蚀评估
3. Fabrication, mechanical properties and in vitro degradation behavior of newly developed Zn-Ag alloys for degradable implant applications [J] . M. Sikora-Jasinska, E. Mostaed, A. Mostaed, Materials science & engineering . 2017,第AUGa期

机译：用于可降解植入物的新开发锌-银合金的制备，力学性能和体外降解行为
4. In Vitro Degradation Behavior and Bioactivity of ZK30-Bioglass Composites Fabricated by SLM for Biomedical Applications [C] . Yin Yong, Huang Qianli, Liu Ling, World Congress on Powder Metallurgy . 2018

机译：用于生物医学应用的SLM制造的ZK30-生物胶囊复合材料的体外降解行为和生物活性
5. Density functional theory (DFT) study on the hydrolysis behavior of degradable Mg/Mg alloys for biomedical applications. [D] . Nezafati, Marjan. 2013

机译：用于生物医学应用的可降解Mg / Mg合金水解行为的密度泛函理论（DFT）研究。
6. In vitro and in vivo degradation behavior of Mg–2Sr–Ca and Mg–2Sr–Zn alloys [O] . Kai Chen, Xinhui Xie, Hongyan Tang, 2020

机译：Mg–2Sr–Ca和Mg–2Sr–Zn合金的体外和体内降解行为
7. Fabrication of Bilayer Coating of Poly(3,4-ethylenedioxythiophene)-Halloysite/Chitosan and Mg2+/Sr2+-Doped HAP on Titanium Alloy for Biomedical Implant Applications: Physicochemical and In Vitro Biological Performances Studies [O] . Manickam Chozhanathmisra, Dharman Govindaraj, Palanisamy Karthikeyan, 2018

机译：用于生物医学植入物应用的聚（3,4-亚乙基氧噻吩）-Halloysite /壳聚糖和Mg2 + / Sr2 + -Doped Hap的双层涂层的制备方法：生物医学植入物应用：物理化学和体外生物学性能研究

Study on the in Vitro Degradation Behavior of Commercial Zn– 4%Al–Sr Alloy for Biomedical Applications

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