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Dynamic Recrystallization and Its Effect on Superior Plasticity of Cold-Rolled Bioabsorbable Zinc-Copper Alloys
High plasticity of bioabsorbable stents, either cardiac or ureteral, is of great importance in terms of implants’ fabrication and positioning. Zn-Cu constitutes a promising group of materials in terms of feasible deformation since the superplastic effect has been observed in them, yet its origin rem...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8269478/ https://www.ncbi.nlm.nih.gov/pubmed/34201474 http://dx.doi.org/10.3390/ma14133483 |
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author | Jarzębska, Anna Maj, Łukasz Bieda, Magdalena Chulist, Robert Wojtas, Daniel Wątroba, Maria Janus, Karol Rogal, Łukasz Sztwiertnia, Krzysztof |
author_facet | Jarzębska, Anna Maj, Łukasz Bieda, Magdalena Chulist, Robert Wojtas, Daniel Wątroba, Maria Janus, Karol Rogal, Łukasz Sztwiertnia, Krzysztof |
author_sort | Jarzębska, Anna |
collection | PubMed |
description | High plasticity of bioabsorbable stents, either cardiac or ureteral, is of great importance in terms of implants’ fabrication and positioning. Zn-Cu constitutes a promising group of materials in terms of feasible deformation since the superplastic effect has been observed in them, yet its origin remains poorly understood. Therefore, it is crucial to inspect the microstructural evolution of processed material to gain an insight into the mechanisms leading to such an extraordinary property. Within the present study, cold-rolled Zn-Cu alloys, i.e., Zn with addition of 1 wt.% and 5 wt.% of Cu, have been extensively investigated using scanning electron microscopy as well as transmission electron microscopy, so as to find out the possible explanation of superior plasticity of the Zn-Cu alloys. It has been stated that the continuous dynamic recrystallization has a tremendous impact on superior plasticity reported for Zn-1Cu alloy processed by rolling to 90% of reduction rate. The effect might be supported by static recrystallization, provoking grain growth and thereby yielding non-homogeneous microstructures. Such heterogeneous microstructure enables better formability since it increases the mean free path for dislocation movement. |
format | Online Article Text |
id | pubmed-8269478 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-82694782021-07-10 Dynamic Recrystallization and Its Effect on Superior Plasticity of Cold-Rolled Bioabsorbable Zinc-Copper Alloys Jarzębska, Anna Maj, Łukasz Bieda, Magdalena Chulist, Robert Wojtas, Daniel Wątroba, Maria Janus, Karol Rogal, Łukasz Sztwiertnia, Krzysztof Materials (Basel) Article High plasticity of bioabsorbable stents, either cardiac or ureteral, is of great importance in terms of implants’ fabrication and positioning. Zn-Cu constitutes a promising group of materials in terms of feasible deformation since the superplastic effect has been observed in them, yet its origin remains poorly understood. Therefore, it is crucial to inspect the microstructural evolution of processed material to gain an insight into the mechanisms leading to such an extraordinary property. Within the present study, cold-rolled Zn-Cu alloys, i.e., Zn with addition of 1 wt.% and 5 wt.% of Cu, have been extensively investigated using scanning electron microscopy as well as transmission electron microscopy, so as to find out the possible explanation of superior plasticity of the Zn-Cu alloys. It has been stated that the continuous dynamic recrystallization has a tremendous impact on superior plasticity reported for Zn-1Cu alloy processed by rolling to 90% of reduction rate. The effect might be supported by static recrystallization, provoking grain growth and thereby yielding non-homogeneous microstructures. Such heterogeneous microstructure enables better formability since it increases the mean free path for dislocation movement. MDPI 2021-06-23 /pmc/articles/PMC8269478/ /pubmed/34201474 http://dx.doi.org/10.3390/ma14133483 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Jarzębska, Anna Maj, Łukasz Bieda, Magdalena Chulist, Robert Wojtas, Daniel Wątroba, Maria Janus, Karol Rogal, Łukasz Sztwiertnia, Krzysztof Dynamic Recrystallization and Its Effect on Superior Plasticity of Cold-Rolled Bioabsorbable Zinc-Copper Alloys |
title | Dynamic Recrystallization and Its Effect on Superior Plasticity of Cold-Rolled Bioabsorbable Zinc-Copper Alloys |
title_full | Dynamic Recrystallization and Its Effect on Superior Plasticity of Cold-Rolled Bioabsorbable Zinc-Copper Alloys |
title_fullStr | Dynamic Recrystallization and Its Effect on Superior Plasticity of Cold-Rolled Bioabsorbable Zinc-Copper Alloys |
title_full_unstemmed | Dynamic Recrystallization and Its Effect on Superior Plasticity of Cold-Rolled Bioabsorbable Zinc-Copper Alloys |
title_short | Dynamic Recrystallization and Its Effect on Superior Plasticity of Cold-Rolled Bioabsorbable Zinc-Copper Alloys |
title_sort | dynamic recrystallization and its effect on superior plasticity of cold-rolled bioabsorbable zinc-copper alloys |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8269478/ https://www.ncbi.nlm.nih.gov/pubmed/34201474 http://dx.doi.org/10.3390/ma14133483 |
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