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Volume 15
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10.3390/ma15093142
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Article

Degradation Behavior and Mechanical Integrity of a Mg-0.7Zn-0.6Ca (wt.%) Alloy: Effect of Grain Sizes and Crystallographic Texture

by
Benjamin Millán-Ramos
1,2,*,
Daniela Morquecho-Marín
3,4,
Phaedra Silva-Bermudez
3,
David Ramírez-Ortega
1,
Osmary Depablos-Rivera
1,5,
Julieta García-López
3,
Mariana Fernández-Lizárraga
3,6,
Argelia Almaguer-Flores
7,
José Victoria-Hernández
8,*,
Dietmar Letzig
8 and
Sandra E. Rodil
1
1
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
2
Posgrado en Ciencia e Ingeniería de Materiales, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
3
Unidad de Ingeniería de Tejidos, Terapia Celular y Medicina Regenerativa, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City 14389, Mexico
4
Posgrado en Ciencias Médicas, Odontológicas y de la Salud, Ciencias Odontológicas, Universidad Nacional Autónoma de México, Mexico City 14389, Mexico
5
Departamento de Ingeniería Metalúrgica, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
6
Posgrado de Doctorado en Ciencias en Biomedicina y Biotecnología Molecular, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
7
Laboratorio de Biointerfaces, Facultad de Odontología, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
8
Institute of Material and Process Design, Helmholtz-Zentrum Hereon, 21502 Geesthacht, Germany
*
Authors to whom correspondence should be addressed.
Materials 2022, 15(9), 3142; https://doi.org/10.3390/ma15093142
Submission received: 21 March 2022 / Revised: 8 April 2022 / Accepted: 22 April 2022 / Published: 26 April 2022
(This article belongs to the Topic Advances in Biomaterials)
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Abstract

The microstructural characteristics of biodegradable Mg alloys determine their performance and appropriateness for orthopedic fixation applications. In this work, the effect of the annealing treatment of a Mg-0.7Zn-0.6Ca (ZX11) alloy on the mechanical integrity, corrosive behavior, and biocompatibility-osteoinduction was studied considering two annealing temperatures, 350 and 450 °C. The microstructure showed a recrystallized structure, with a lower number of precipitates, grain size, and stronger basal texture for the ZX11-350 condition than the ZX11-450. The characteristics mentioned above induce a higher long-term degradation rate for the ZX11-450 than the ZX11-350 on days 7th and 15th of immersion. In consequence, the mechanical integrity changes within this period. The increased degradation rate of the ZX11-450 condition reduces 40% the elongation at failure, in contrast with the 16% reduction for the ZX11-350 condition. After that period, the mechanical integrity remained unchanged. No cytotoxic effects were observed for both treatments and significant differentiation of mesenchymal stem cells into the osteoblast phenotype was observed.
Keywords: magnesium; biodegradable; annealing; mechanical properties magnesium; biodegradable; annealing; mechanical properties

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MDPI and ACS Style

Millán-Ramos, B.; Morquecho-Marín, D.; Silva-Bermudez, P.; Ramírez-Ortega, D.; Depablos-Rivera, O.; García-López, J.; Fernández-Lizárraga, M.; Almaguer-Flores, A.; Victoria-Hernández, J.; Letzig, D.; et al. Degradation Behavior and Mechanical Integrity of a Mg-0.7Zn-0.6Ca (wt.%) Alloy: Effect of Grain Sizes and Crystallographic Texture. Materials 2022, 15, 3142. https://doi.org/10.3390/ma15093142

AMA Style

Millán-Ramos B, Morquecho-Marín D, Silva-Bermudez P, Ramírez-Ortega D, Depablos-Rivera O, García-López J, Fernández-Lizárraga M, Almaguer-Flores A, Victoria-Hernández J, Letzig D, et al. Degradation Behavior and Mechanical Integrity of a Mg-0.7Zn-0.6Ca (wt.%) Alloy: Effect of Grain Sizes and Crystallographic Texture. Materials. 2022; 15(9):3142. https://doi.org/10.3390/ma15093142

Chicago/Turabian Style

Millán-Ramos, Benjamin, Daniela Morquecho-Marín, Phaedra Silva-Bermudez, David Ramírez-Ortega, Osmary Depablos-Rivera, Julieta García-López, Mariana Fernández-Lizárraga, Argelia Almaguer-Flores, José Victoria-Hernández, Dietmar Letzig, and et al. 2022. "Degradation Behavior and Mechanical Integrity of a Mg-0.7Zn-0.6Ca (wt.%) Alloy: Effect of Grain Sizes and Crystallographic Texture" Materials 15, no. 9: 3142. https://doi.org/10.3390/ma15093142

APA Style

Millán-Ramos, B., Morquecho-Marín, D., Silva-Bermudez, P., Ramírez-Ortega, D., Depablos-Rivera, O., García-López, J., Fernández-Lizárraga, M., Almaguer-Flores, A., Victoria-Hernández, J., Letzig, D., & Rodil, S. E. (2022). Degradation Behavior and Mechanical Integrity of a Mg-0.7Zn-0.6Ca (wt.%) Alloy: Effect of Grain Sizes and Crystallographic Texture. Materials, 15(9), 3142. https://doi.org/10.3390/ma15093142

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