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The Effect of Equal-Channel Angular Pressing on the Microstructure, the Mechanical and Corrosion Properties and the Anti-Tumor Activity of Magnesium Alloyed with Silver
The effect of equal-channel angular pressing (ECAP) on the microstructure, texture, mechanical properties, corrosion resistance and cytotoxicity of two magnesium-silver alloys, Mg-2.0%Ag and Mg-4.0%Ag, was studied. Their average grain size was found to be reduced to 3.2 ± 1.4 μm and 2.8 ± 1.3 μm, re...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6926692/ https://www.ncbi.nlm.nih.gov/pubmed/31766395 http://dx.doi.org/10.3390/ma12233832 |
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author | Estrin, Yuri Martynenko, Natalia Anisimova, Natalia Temralieva, Diana Kiselevskiy, Mikhail Serebryany, Vladimir Raab, Georgy Straumal, Boris Wiese, Björn Willumeit-Römer, Regine Dobatkin, Sergey |
author_facet | Estrin, Yuri Martynenko, Natalia Anisimova, Natalia Temralieva, Diana Kiselevskiy, Mikhail Serebryany, Vladimir Raab, Georgy Straumal, Boris Wiese, Björn Willumeit-Römer, Regine Dobatkin, Sergey |
author_sort | Estrin, Yuri |
collection | PubMed |
description | The effect of equal-channel angular pressing (ECAP) on the microstructure, texture, mechanical properties, corrosion resistance and cytotoxicity of two magnesium-silver alloys, Mg-2.0%Ag and Mg-4.0%Ag, was studied. Their average grain size was found to be reduced to 3.2 ± 1.4 μm and 2.8 ± 1.3 μm, respectively. Despite the substantial grain refinement, a drop in the strength characteristics of the alloys was observed, which can be attributed to the formation of inclined basal texture. On a positive side, an increase in tensile ductility to ~34% for Mg-2.0%Ag and ~27% for Mg-4.0%Ag was observed. This effect can be associated with the activity of basal and prismatic slip induced by ECAP. One of the ECAP regimes tested gave rise to a drop in the corrosion resistance of both alloys. An interesting observation was a cytotoxic effect both alloys had on tumor cells in vitro. This effect was accompanied with the release of lactate dehydrogenase, an increase in oxidative stress, coupled with the induction of NO-ions and an increase in the content of such markers of apoptosis as Annexin V and Caspase 3/7. Differences in the chemical composition and the processing history-dependent microstructure of the alloys did not have any significant effect on the magnitude of their antiproliferative effect. |
format | Online Article Text |
id | pubmed-6926692 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-69266922019-12-24 The Effect of Equal-Channel Angular Pressing on the Microstructure, the Mechanical and Corrosion Properties and the Anti-Tumor Activity of Magnesium Alloyed with Silver Estrin, Yuri Martynenko, Natalia Anisimova, Natalia Temralieva, Diana Kiselevskiy, Mikhail Serebryany, Vladimir Raab, Georgy Straumal, Boris Wiese, Björn Willumeit-Römer, Regine Dobatkin, Sergey Materials (Basel) Article The effect of equal-channel angular pressing (ECAP) on the microstructure, texture, mechanical properties, corrosion resistance and cytotoxicity of two magnesium-silver alloys, Mg-2.0%Ag and Mg-4.0%Ag, was studied. Their average grain size was found to be reduced to 3.2 ± 1.4 μm and 2.8 ± 1.3 μm, respectively. Despite the substantial grain refinement, a drop in the strength characteristics of the alloys was observed, which can be attributed to the formation of inclined basal texture. On a positive side, an increase in tensile ductility to ~34% for Mg-2.0%Ag and ~27% for Mg-4.0%Ag was observed. This effect can be associated with the activity of basal and prismatic slip induced by ECAP. One of the ECAP regimes tested gave rise to a drop in the corrosion resistance of both alloys. An interesting observation was a cytotoxic effect both alloys had on tumor cells in vitro. This effect was accompanied with the release of lactate dehydrogenase, an increase in oxidative stress, coupled with the induction of NO-ions and an increase in the content of such markers of apoptosis as Annexin V and Caspase 3/7. Differences in the chemical composition and the processing history-dependent microstructure of the alloys did not have any significant effect on the magnitude of their antiproliferative effect. MDPI 2019-11-21 /pmc/articles/PMC6926692/ /pubmed/31766395 http://dx.doi.org/10.3390/ma12233832 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Estrin, Yuri Martynenko, Natalia Anisimova, Natalia Temralieva, Diana Kiselevskiy, Mikhail Serebryany, Vladimir Raab, Georgy Straumal, Boris Wiese, Björn Willumeit-Römer, Regine Dobatkin, Sergey The Effect of Equal-Channel Angular Pressing on the Microstructure, the Mechanical and Corrosion Properties and the Anti-Tumor Activity of Magnesium Alloyed with Silver |
title | The Effect of Equal-Channel Angular Pressing on the Microstructure, the Mechanical and Corrosion Properties and the Anti-Tumor Activity of Magnesium Alloyed with Silver |
title_full | The Effect of Equal-Channel Angular Pressing on the Microstructure, the Mechanical and Corrosion Properties and the Anti-Tumor Activity of Magnesium Alloyed with Silver |
title_fullStr | The Effect of Equal-Channel Angular Pressing on the Microstructure, the Mechanical and Corrosion Properties and the Anti-Tumor Activity of Magnesium Alloyed with Silver |
title_full_unstemmed | The Effect of Equal-Channel Angular Pressing on the Microstructure, the Mechanical and Corrosion Properties and the Anti-Tumor Activity of Magnesium Alloyed with Silver |
title_short | The Effect of Equal-Channel Angular Pressing on the Microstructure, the Mechanical and Corrosion Properties and the Anti-Tumor Activity of Magnesium Alloyed with Silver |
title_sort | effect of equal-channel angular pressing on the microstructure, the mechanical and corrosion properties and the anti-tumor activity of magnesium alloyed with silver |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6926692/ https://www.ncbi.nlm.nih.gov/pubmed/31766395 http://dx.doi.org/10.3390/ma12233832 |
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