用于生物医学应用的镁合金抗腐蚀工程：锌/钙原子比与基于纹理的方法的协同作用

IF 2.6 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Metals Pub Date : 2024-09-02 DOI:10.3390/met14091002

Manisha Behera, Rajashekhara Shabadi, Cosmin Gruescu

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引用次数: 0

摘要

镁（Mg）和镁锌钙合金是可生物降解植入材料中的一个引人注目的选择。利用真空感应铸造技术制造了镁-2.5锌-x钙（x = 0.3、0.5、0.9、1.15 wt%）合金，并对其进行了热轧热机械加工。热轧 Mg-2.5Zn-0.3Ca 合金的腐蚀速率最低，基底纹理最高。提高 Zn/Ca 原子比可强化基底纹理，增强耐腐蚀性。提高锌浓度可通过 Ca2Mg6Zn3 相的形成提高耐腐蚀性，而增加钙含量则会由于 Mg2Ca 相的形成而降低耐腐蚀性。这种合金的发展有望扩大镁合金在创新生物医学骨植入物中的应用。

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Engineering Corrosion Resistance in Magnesium Alloys for Biomedical Applications: A Synergy of Zn/Ca Atomic Ratio and Texture-Based Approach

Magnesium (Mg) and Magnesium-Zinc-Calcium alloys present a compelling option for biodegradable implant materials. Utilizing Vacuum Induction Casting, Mg–2.5Zn-xCa (with x = 0.3, 0.5, 0.9, 1.15 wt%) alloys were fabricated and subjected to hot-rolling for thermo-mechanical processing. The hot-rolled Mg–2.5Zn-0.3Ca alloy exhibits the lowest corrosion rate along with the highest basal texture. Increasing the Zn/Ca atomic ratio intensifies the basal texture and enhances corrosion resistance. Elevated Zn concentration improves corrosion resistance via Ca2Mg6Zn3 phase formation, while increased Ca content diminishes corrosion resistance due to the Mg2Ca phase. Advancement of this alloy is poised to extend Mg alloy use in innovative biomedical bone implants.

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来源期刊

Metals MATERIALS SCIENCE, MULTIDISCIPLINARY-METALLURGY & METALLURGICAL ENGINEERING

CiteScore

4.90

自引率

13.80%

发文量

1832

审稿时长

1.5 months

期刊介绍： Metals (ISSN 2075-4701) is an open access journal of related scientific research and technology development. It publishes reviews, regular research papers (articles) and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Metals provides a forum for publishing papers which advance the in-depth understanding of the relationship between the structure, the properties or the functions of all kinds of metals.