Shielding AZ91D-1%Ca from corrosion through ultrasound melt treatment: A study for stent design

Magnesium-based materials show great potential for producing biodegradable stents, but their high corrosion rates are a roadblock.This study investigates whether ultrasound melt treatment can change the corrosion response of an extruded AZ91D-1.0%Ca (wt.%) in Earle's Balanced Salt Solution by t...

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Main Authors: I.V. Gomes, M. Pacheco, M. Nienaber, S.C. Neves, D. Mei, A. Barros, R.L. Reis, J.L. Alves, H. Puga
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2023-08-01
Series:Journal of Magnesium and Alloys
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2213956723001664
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author I.V. Gomes
M. Pacheco
M. Nienaber
S.C. Neves
D. Mei
A. Barros
R.L. Reis
J.L. Alves
H. Puga
author_facet I.V. Gomes
M. Pacheco
M. Nienaber
S.C. Neves
D. Mei
A. Barros
R.L. Reis
J.L. Alves
H. Puga
author_sort I.V. Gomes
collection DOAJ
description Magnesium-based materials show great potential for producing biodegradable stents, but their high corrosion rates are a roadblock.This study investigates whether ultrasound melt treatment can change the corrosion response of an extruded AZ91D-1.0%Ca (wt.%) in Earle's Balanced Salt Solution by tailoring the intermetallics' morphology in the as-extruded state.The results showed that the wires from ultrasound-treated ingots corroded faster than non-treated ones in immersion for up to 6 hours. This trend shifted for longer periods, and ultrasound-treated material showed lower corrosion rates and uniform corrosion, while the non-treated material displayed localized corrosion signs. Tensile testing of the wires demonstrated that immersion in EBSS lowered the tensile strength and elongation at fracture due to material degradation, regardless of the processing route. Nonetheless, this decline was sharper in the non-treated material.These findings suggest that ultrasound melt processing can be a promising method for improving the corrosion resistance of magnesium-based materials, paving the way for their use in manufacturing biodegradable stents.
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spelling doaj.art-f1ad22cdcce141529e71654332fce8992023-10-13T13:53:53ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672023-08-0111829012915Shielding AZ91D-1%Ca from corrosion through ultrasound melt treatment: A study for stent designI.V. Gomes0M. Pacheco1M. Nienaber2S.C. Neves3D. Mei4A. Barros5R.L. Reis6J.L. Alves7H. Puga8CMEMS – UMinho, University of Minho, Guimarães, Portugal; LABBELS –Associate Laboratory, Braga, Guimarães, PortugalB's Research Group - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Barco Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, PortugalInstitute of Material and Process Design, Helmholtz-Zentrum Hereon, Geesthacht 21502, GermanyB's Research Group - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Barco Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, PortugalSchool of Materials Science and Engineering & Henan Key Laboratory of Advanced Magnesium Alloy, Zhengzhou University, Zhengzhou 450001, ChinaB's Research Group - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Barco Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, PortugalB's Research Group - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Barco Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, PortugalCMEMS – UMinho, University of Minho, Guimarães, Portugal; LABBELS –Associate Laboratory, Braga, Guimarães, PortugalCMEMS – UMinho, University of Minho, Guimarães, Portugal; LABBELS –Associate Laboratory, Braga, Guimarães, Portugal; Corresponding author.Magnesium-based materials show great potential for producing biodegradable stents, but their high corrosion rates are a roadblock.This study investigates whether ultrasound melt treatment can change the corrosion response of an extruded AZ91D-1.0%Ca (wt.%) in Earle's Balanced Salt Solution by tailoring the intermetallics' morphology in the as-extruded state.The results showed that the wires from ultrasound-treated ingots corroded faster than non-treated ones in immersion for up to 6 hours. This trend shifted for longer periods, and ultrasound-treated material showed lower corrosion rates and uniform corrosion, while the non-treated material displayed localized corrosion signs. Tensile testing of the wires demonstrated that immersion in EBSS lowered the tensile strength and elongation at fracture due to material degradation, regardless of the processing route. Nonetheless, this decline was sharper in the non-treated material.These findings suggest that ultrasound melt processing can be a promising method for improving the corrosion resistance of magnesium-based materials, paving the way for their use in manufacturing biodegradable stents.http://www.sciencedirect.com/science/article/pii/S2213956723001664MagnesiumUltrasound treatmentStentCorrosionMechanical properties
spellingShingle I.V. Gomes
M. Pacheco
M. Nienaber
S.C. Neves
D. Mei
A. Barros
R.L. Reis
J.L. Alves
H. Puga
Shielding AZ91D-1%Ca from corrosion through ultrasound melt treatment: A study for stent design
Journal of Magnesium and Alloys
Magnesium
Ultrasound treatment
Stent
Corrosion
Mechanical properties
title Shielding AZ91D-1%Ca from corrosion through ultrasound melt treatment: A study for stent design
title_full Shielding AZ91D-1%Ca from corrosion through ultrasound melt treatment: A study for stent design
title_fullStr Shielding AZ91D-1%Ca from corrosion through ultrasound melt treatment: A study for stent design
title_full_unstemmed Shielding AZ91D-1%Ca from corrosion through ultrasound melt treatment: A study for stent design
title_short Shielding AZ91D-1%Ca from corrosion through ultrasound melt treatment: A study for stent design
title_sort shielding az91d 1 ca from corrosion through ultrasound melt treatment a study for stent design
topic Magnesium
Ultrasound treatment
Stent
Corrosion
Mechanical properties
url http://www.sciencedirect.com/science/article/pii/S2213956723001664
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