Composition design and performance analysis of Zn–0.4Mg–nCa biodegradable alloys

IF 2.7 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Journal of Materials Research Pub Date : 2024-08-21 DOI:10.1557/s43578-024-01409-2
Tianwei Fu, Lin Ma, Kaicheng Lu, Gui Wang, Huixin Shen, Tongyong Guan
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Abstract

The mechanical properties of Zn–0.4Mg binary alloys were improved by adding different mass fractions of Ca during the casting process. The microstructure, mechanical, electrochemical, and degradation properties of Zn–0.4Mg–nCa alloys were thoroughly investigated. The results demonstrate that the ternary alloys’ microstructure comprised matrix Zn and precipitated phases (Mg2Zn11 and CaZn13). The grain size of the ternary alloys was gradually refined with increased Ca content, and the quantity and composition of eutectic phases were altered. The tensile strength of the Zn–0.4Mg–0.4Ca alloy reached 161.12 MPa. The immersion test demonstrated that when the Ca content increased, the corrosion rate of the Zn–0.4Mg–nCa alloys gradually increased. In addition, the alloys’ corrosion mechanisms in simulated body fluids were discussed.

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Zn-0.4Mg-nCa 可生物降解合金的成分设计和性能分析
通过在铸造过程中添加不同质量分数的 Ca,Zn-0.4Mg 二元合金的机械性能得到了改善。对 Zn-0.4Mg-nCa 合金的微观结构、机械、电化学和降解性能进行了深入研究。结果表明,三元合金的微观结构由基体 Zn 和析出相(Mg2Zn11 和 CaZn13)组成。随着 Ca 含量的增加,三元合金的晶粒尺寸逐渐细化,共晶相的数量和组成也发生了变化。Zn-0.4Mg-0.4Ca 合金的抗拉强度达到 161.12 兆帕。浸泡试验表明,当 Ca 含量增加时,Zn-0.4Mg-nCa 合金的腐蚀速率逐渐增加。此外,还讨论了合金在模拟体液中的腐蚀机理。 图表摘要
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来源期刊
Journal of Materials Research
Journal of Materials Research 工程技术-材料科学:综合
CiteScore
4.50
自引率
3.70%
发文量
362
审稿时长
2.8 months
期刊介绍: Journal of Materials Research (JMR) publishes the latest advances about the creation of new materials and materials with novel functionalities, fundamental understanding of processes that control the response of materials, and development of materials with significant performance improvements relative to state of the art materials. JMR welcomes papers that highlight novel processing techniques, the application and development of new analytical tools, and interpretation of fundamental materials science to achieve enhanced materials properties and uses. Materials research papers in the following topical areas are welcome. • Novel materials discovery • Electronic, photonic and magnetic materials • Energy Conversion and storage materials • New thermal and structural materials • Soft materials • Biomaterials and related topics • Nanoscale science and technology • Advances in materials characterization methods and techniques • Computational materials science, modeling and theory
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