Academic Journal
Mechanical properties, corrosion behavior, and cytotoxicity of biodegradable Zn/Mg multilayered composites prepared by accumulative roll bonding process
| العنوان: | Mechanical properties, corrosion behavior, and cytotoxicity of biodegradable Zn/Mg multilayered composites prepared by accumulative roll bonding process |
|---|---|
| المؤلفون: | Quanxiang Sun, Dechuang Zhang, Xian Tong, Jianguo Lin, Yuncang Li, Cuie Wen |
| سنة النشر: | 2024 |
| مصطلحات موضوعية: | Materials engineering not elsewhere classified, Accumulative roll bonding, Corrosion behavior, Cytotoxicity, Mechanical property, Microstructure, Zn/Mg multilayered composite |
| الوصف: | Zinc (Zn), magnesium (Mg), and their respective alloys have attracted great attention as biodegradable bone-implant materials due to their excellent biocompatibility and biodegradability. However, the poor mechanical strength of Zn alloys and the rapid degradation rate of Mg alloys limit their clinical application. The manufacture of Zn and Mg bimetals may be a promising way to improve their mechanical and degradation properties. Here we report on Zn/Mg multilayered composites prepared via an accumulative roll bonding (ARB) process. With an increase in the number of ARB cycles, the thicknesses of the Zn layer and the Mg layer were reduced, while a large number of heterogeneous interfaces were introduced into the Zn/Mg multilayered composites. The composite samples after 14 ARB cycles showed the highest yield strength of 411±3 MPa and highest ultimate tensile strength of 501±3 MPa among all the ARB processed samples, significantly higher than those of the Zn/Zn and Mg/Mg multilayered samples. The Zn and Mg layers remained continuous in the Zn/Mg composite samples after annealing at 150 °C for 10 min, resulting in a decrease in yield strength from 411±3 MPa to 349±3 MPa but an increase in elongation from 8±1% to 28±1%. The degradation rate of the Zn/Mg multilayered composite samples in Hanks’ solution was ranged from 127±18 µm/y to 6±1 µm/y. The Zn/Mg multilayered composites showed over 100% cell viability with their 25% and 12.5% extracts in relation to MG-63 cells after culturing for 3 d, indicating excellent cytocompatibility. Statement of significance: This work reports a biodegradable Zn/Mg multilayered composite prepared by accumulative roll bonding (ARB) process. The yield and ultimate tensile strength of the Zn/Mg multilayered composites were improved due to grain refinement and the introduction of a large number of heterogeneous interfaces. The composite samples after 14 ARB cycles showed the highest yield strength of 411±3 MPa and highest ultimate tensile st |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| Relation: | 10779/rmit.27586686.v1; https://figshare.com/articles/journal_contribution/Mechanical_properties_corrosion_behavior_and_cytotoxicity_of_biodegradable_Zn_Mg_multilayered_composites_prepared_by_accumulative_roll_bonding_process/27586686 |
| الاتاحة: | https://figshare.com/articles/journal_contribution/Mechanical_properties_corrosion_behavior_and_cytotoxicity_of_biodegradable_Zn_Mg_multilayered_composites_prepared_by_accumulative_roll_bonding_process/27586686 |
| Rights: | All rights reserved |
| رقم الانضمام: | edsbas.6887AE6D |
| قاعدة البيانات: | BASE |
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