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Influence of Dynamic Strain Sweep on the Degradation Behavior of FeMnSi–Ag Shape Memory Alloys

Iron-based SMAs can be used in the medical field for both their shape memory effect (SME) and biodegradability after a specific period, solving complicated chirurgical problems that are partially now addressed with shape-memory polymers or biodegradable polymers. Iron-based materials with (28–32 wt...

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Autores principales: Roman, Ana-Maria, Cimpoeșu, Ramona, Pricop, Bogdan, Lohan, Nicoleta-Monica, Cazacu, Marius Mihai, Bujoreanu, Leandru-Gheorghe, Panaghie, Cătălin, Zegan, Georgeta, Cimpoeșu, Nicanor, Murariu, Alice Mirela
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10381450/
https://www.ncbi.nlm.nih.gov/pubmed/37504873
http://dx.doi.org/10.3390/jfb14070377
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author Roman, Ana-Maria
Cimpoeșu, Ramona
Pricop, Bogdan
Lohan, Nicoleta-Monica
Cazacu, Marius Mihai
Bujoreanu, Leandru-Gheorghe
Panaghie, Cătălin
Zegan, Georgeta
Cimpoeșu, Nicanor
Murariu, Alice Mirela
author_facet Roman, Ana-Maria
Cimpoeșu, Ramona
Pricop, Bogdan
Lohan, Nicoleta-Monica
Cazacu, Marius Mihai
Bujoreanu, Leandru-Gheorghe
Panaghie, Cătălin
Zegan, Georgeta
Cimpoeșu, Nicanor
Murariu, Alice Mirela
author_sort Roman, Ana-Maria
collection PubMed
description Iron-based SMAs can be used in the medical field for both their shape memory effect (SME) and biodegradability after a specific period, solving complicated chirurgical problems that are partially now addressed with shape-memory polymers or biodegradable polymers. Iron-based materials with (28–32 wt %) Mn and (4–6 wt %) Si with the addition of 1 and 2 wt % Ag were obtained using levitation induction melting equipment. Addition of silver to the FeMnSi alloy was proposed in order to enhance its antiseptic property. Structural and chemical composition analyses of the newly obtained alloys were performed by X-ray diffraction (confirming the presence of ε phase), scanning electron microscopy (SEM) and energy-dispersive spectroscopy. The corrosion resistance was evaluated through immersion tests and electrolyte pH solution variation. Dynamic mechanical solicitations were performed with amplitude sweep performed on the FeMnSi–1Ag and FeMnSi–2Ag samples, including five deformation cycles at 40 °C, with a frequency of 1 Hz, 5 Hz and 20 Hz. These experiments were meant to simulate the usual behavior of some metallic implants subjected to repetitive mechanical loading. Atomic force microscopy was used to analyze the surface roughness before and after the dynamic mechanical analysis test followed by the characterization of the surface profile change by varying dynamic mechanical stress. Differential scanning calorimetry was performed in order to analyze the thermal behavior of the material in the range of −50–+200 °C. X-ray diffraction and Fourier transform infrared spectroscopy (FTIR) along with Neaspec nano-FTIR experiments were performed to identify and confirm the corrosion compounds (oxides, hydroxides or carbonates) formed on the surface.
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spelling pubmed-103814502023-07-29 Influence of Dynamic Strain Sweep on the Degradation Behavior of FeMnSi–Ag Shape Memory Alloys Roman, Ana-Maria Cimpoeșu, Ramona Pricop, Bogdan Lohan, Nicoleta-Monica Cazacu, Marius Mihai Bujoreanu, Leandru-Gheorghe Panaghie, Cătălin Zegan, Georgeta Cimpoeșu, Nicanor Murariu, Alice Mirela J Funct Biomater Article Iron-based SMAs can be used in the medical field for both their shape memory effect (SME) and biodegradability after a specific period, solving complicated chirurgical problems that are partially now addressed with shape-memory polymers or biodegradable polymers. Iron-based materials with (28–32 wt %) Mn and (4–6 wt %) Si with the addition of 1 and 2 wt % Ag were obtained using levitation induction melting equipment. Addition of silver to the FeMnSi alloy was proposed in order to enhance its antiseptic property. Structural and chemical composition analyses of the newly obtained alloys were performed by X-ray diffraction (confirming the presence of ε phase), scanning electron microscopy (SEM) and energy-dispersive spectroscopy. The corrosion resistance was evaluated through immersion tests and electrolyte pH solution variation. Dynamic mechanical solicitations were performed with amplitude sweep performed on the FeMnSi–1Ag and FeMnSi–2Ag samples, including five deformation cycles at 40 °C, with a frequency of 1 Hz, 5 Hz and 20 Hz. These experiments were meant to simulate the usual behavior of some metallic implants subjected to repetitive mechanical loading. Atomic force microscopy was used to analyze the surface roughness before and after the dynamic mechanical analysis test followed by the characterization of the surface profile change by varying dynamic mechanical stress. Differential scanning calorimetry was performed in order to analyze the thermal behavior of the material in the range of −50–+200 °C. X-ray diffraction and Fourier transform infrared spectroscopy (FTIR) along with Neaspec nano-FTIR experiments were performed to identify and confirm the corrosion compounds (oxides, hydroxides or carbonates) formed on the surface. MDPI 2023-07-19 /pmc/articles/PMC10381450/ /pubmed/37504873 http://dx.doi.org/10.3390/jfb14070377 Text en © 2023 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
Roman, Ana-Maria
Cimpoeșu, Ramona
Pricop, Bogdan
Lohan, Nicoleta-Monica
Cazacu, Marius Mihai
Bujoreanu, Leandru-Gheorghe
Panaghie, Cătălin
Zegan, Georgeta
Cimpoeșu, Nicanor
Murariu, Alice Mirela
Influence of Dynamic Strain Sweep on the Degradation Behavior of FeMnSi–Ag Shape Memory Alloys
title Influence of Dynamic Strain Sweep on the Degradation Behavior of FeMnSi–Ag Shape Memory Alloys
title_full Influence of Dynamic Strain Sweep on the Degradation Behavior of FeMnSi–Ag Shape Memory Alloys
title_fullStr Influence of Dynamic Strain Sweep on the Degradation Behavior of FeMnSi–Ag Shape Memory Alloys
title_full_unstemmed Influence of Dynamic Strain Sweep on the Degradation Behavior of FeMnSi–Ag Shape Memory Alloys
title_short Influence of Dynamic Strain Sweep on the Degradation Behavior of FeMnSi–Ag Shape Memory Alloys
title_sort influence of dynamic strain sweep on the degradation behavior of femnsi–ag shape memory alloys
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10381450/
https://www.ncbi.nlm.nih.gov/pubmed/37504873
http://dx.doi.org/10.3390/jfb14070377
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