Microstructural Evolution and Electrochemical Behavior of Solution Treated, Hot Rolled and Aged MgDyZnZr Alloy

In order to develop a potential route to fabricate plates and clips for orthopedic applications, a Mg–3.4Dy–0.2Zn–0.4Zr (wt.%) alloy was produced and analyzed in different conditions: solution treated at 525 °C for 3 h, hot rolled and hot rolled and aged at 250 °C. The aging behavior of the rolled a...

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Autores principales: Bruno Xavier de Freitas, Leonardo A. Antonini, Paula L. C. T. Cury, Viviane L. F. da Silva, Nabil Chaia, Célia R. Tomachuk, Stéphane Mathieu, Gilberto C. Coelho, Claudinei dos Santos, Carlos A. Nunes
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Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/a7a1714eac164c38bcb5a7ac4c2fbad9
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spelling oai:doaj.org-article:a7a1714eac164c38bcb5a7ac4c2fbad92021-11-25T18:22:26ZMicrostructural Evolution and Electrochemical Behavior of Solution Treated, Hot Rolled and Aged MgDyZnZr Alloy10.3390/met111118552075-4701https://doaj.org/article/a7a1714eac164c38bcb5a7ac4c2fbad92021-11-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1855https://doaj.org/toc/2075-4701In order to develop a potential route to fabricate plates and clips for orthopedic applications, a Mg–3.4Dy–0.2Zn–0.4Zr (wt.%) alloy was produced and analyzed in different conditions: solution treated at 525 °C for 3 h, hot rolled and hot rolled and aged at 250 °C. The aging behavior of the rolled alloy was investigated during isothermal aging at 250 °C, and a significant peak was observed at 10 h. The electrochemical behavior was evaluated in 0.9 wt.% NaCl solution at 37 ± 0.5 °C by potentiodynamic polarization and electrochemical impedance spectroscopy. The 525 °C-3 h and hot rolled specimens exhibited corrosion rates of 2.0 and 1.7 mm/year, respectively. The hot rolled and aged at 250 °C for 10 h specimen presented a grain size of 11.8 ± 1.7 μm with an intense macrotexture of the basal {0002} plane, hardness of 73 ± 3 HV and higher impedance modulus and obtained the highest corrosion resistance with a corrosion rate of 0.9 mm/year.Bruno Xavier de FreitasLeonardo A. AntoniniPaula L. C. T. CuryViviane L. F. da SilvaNabil ChaiaCélia R. TomachukStéphane MathieuGilberto C. CoelhoClaudinei dos SantosCarlos A. NunesMDPI AGarticleMg alloysMgDy alloyMgDyZnZr hot rolledaging hardeningelectrochemicalMining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1855, p 1855 (2021)
institution DOAJ
collection DOAJ
language EN
topic Mg alloys
MgDy alloy
MgDyZnZr hot rolled
aging hardening
electrochemical
Mining engineering. Metallurgy
TN1-997
spellingShingle Mg alloys
MgDy alloy
MgDyZnZr hot rolled
aging hardening
electrochemical
Mining engineering. Metallurgy
TN1-997
Bruno Xavier de Freitas
Leonardo A. Antonini
Paula L. C. T. Cury
Viviane L. F. da Silva
Nabil Chaia
Célia R. Tomachuk
Stéphane Mathieu
Gilberto C. Coelho
Claudinei dos Santos
Carlos A. Nunes
Microstructural Evolution and Electrochemical Behavior of Solution Treated, Hot Rolled and Aged MgDyZnZr Alloy
description In order to develop a potential route to fabricate plates and clips for orthopedic applications, a Mg–3.4Dy–0.2Zn–0.4Zr (wt.%) alloy was produced and analyzed in different conditions: solution treated at 525 °C for 3 h, hot rolled and hot rolled and aged at 250 °C. The aging behavior of the rolled alloy was investigated during isothermal aging at 250 °C, and a significant peak was observed at 10 h. The electrochemical behavior was evaluated in 0.9 wt.% NaCl solution at 37 ± 0.5 °C by potentiodynamic polarization and electrochemical impedance spectroscopy. The 525 °C-3 h and hot rolled specimens exhibited corrosion rates of 2.0 and 1.7 mm/year, respectively. The hot rolled and aged at 250 °C for 10 h specimen presented a grain size of 11.8 ± 1.7 μm with an intense macrotexture of the basal {0002} plane, hardness of 73 ± 3 HV and higher impedance modulus and obtained the highest corrosion resistance with a corrosion rate of 0.9 mm/year.
format article
author Bruno Xavier de Freitas
Leonardo A. Antonini
Paula L. C. T. Cury
Viviane L. F. da Silva
Nabil Chaia
Célia R. Tomachuk
Stéphane Mathieu
Gilberto C. Coelho
Claudinei dos Santos
Carlos A. Nunes
author_facet Bruno Xavier de Freitas
Leonardo A. Antonini
Paula L. C. T. Cury
Viviane L. F. da Silva
Nabil Chaia
Célia R. Tomachuk
Stéphane Mathieu
Gilberto C. Coelho
Claudinei dos Santos
Carlos A. Nunes
author_sort Bruno Xavier de Freitas
title Microstructural Evolution and Electrochemical Behavior of Solution Treated, Hot Rolled and Aged MgDyZnZr Alloy
title_short Microstructural Evolution and Electrochemical Behavior of Solution Treated, Hot Rolled and Aged MgDyZnZr Alloy
title_full Microstructural Evolution and Electrochemical Behavior of Solution Treated, Hot Rolled and Aged MgDyZnZr Alloy
title_fullStr Microstructural Evolution and Electrochemical Behavior of Solution Treated, Hot Rolled and Aged MgDyZnZr Alloy
title_full_unstemmed Microstructural Evolution and Electrochemical Behavior of Solution Treated, Hot Rolled and Aged MgDyZnZr Alloy
title_sort microstructural evolution and electrochemical behavior of solution treated, hot rolled and aged mgdyznzr alloy
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/a7a1714eac164c38bcb5a7ac4c2fbad9
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