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
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Mg alloys MgDy alloy MgDyZnZr hot rolled aging hardening electrochemical Mining engineering. Metallurgy TN1-997
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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Microstructural Evolution and Electrochemical Behavior of Solution Treated, Hot Rolled and Aged MgDyZnZr Alloy

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