Effect of Experimental Aging on the Performance of Al-7.9Mg-13.3Zn and Al-10.5Mg-8.6Zn Alloys as Sacrificial Anodes

Effect of Experimental Aging on the Performance of Al-7.9Mg-13.3Zn and Al-10.5Mg-8.6Zn Alloys as Sacrificial Anodes

Light aluminum alloys have a great importance in industry owing to generally accessible costs, low density, good machinability, and corrosion resistance under certain environments. The present work studies aging treatments that preform important roles on the distribution and microstructural changes...

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Main Authors: Aline Hernández, Álvaro Torres, Sergio Serna, Jan Mayén, Bernardo Campillo
Format: Article
Language:English
Published: MDPI AG 2019-08-01
Series:Metals
Subjects:
artificial aging
new aluminum alloys
sacrificial anodes
Online Access:https://www.mdpi.com/2075-4701/9/8/863
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spelling doaj-37353caea8a545dda6d191e5e9551be82020-11-25T02:30:14ZengMDPI AGMetals2075-47012019-08-019886310.3390/met9080863met9080863Effect of Experimental Aging on the Performance of Al-7.9Mg-13.3Zn and Al-10.5Mg-8.6Zn Alloys as Sacrificial AnodesAline Hernández0Álvaro Torres1Sergio Serna2Jan Mayén3Bernardo Campillo4Facultad de Química-UNAM, Circuito de la Investigación Científica S/N, Mexico City 04510, MexicoFacultad de Ciencias Químicas e Ingeniería P.A. Ing. Mecánica, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, Cuernavaca 62209, Morelos, MexicoCIICAp, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, Cuernavaca 62609, MexicoCONACYT, CIATEQ, Unidad San Luis Potosí, Eje 126 No. 225, Zona Industrial, San Luis Potosí 78395, MexicoFacultad de Química-UNAM, Circuito de la Investigación Científica S/N, Mexico City 04510, MexicoLight aluminum alloys have a great importance in industry owing to generally accessible costs, low density, good machinability, and corrosion resistance under certain environments. The present work studies aging treatments that preform important roles on the distribution and microstructural changes of two AlMg-Zn alloys, and the resulting effect on the corrosion behavior. The experimental AlMg-Zn alloys were cast and then heat treated at 200 &#176;C, after the solubilization treatments were made, using different treatment times. These alloys showed important changes in their corrosion mechanisms, but mainly, corrosion started at Al<i><sub>x</sub></i>Mg<i><sub>y</sub></i>Zn<i><sub>z</sub></i> complex phases in both alloys. The optimal corrosion rates were reached after 5 and 24 h of heat treatment. These results were obtained through electrochemical techniques in NaCl solutions, and by metallographic analysis using SEM and optical microscopy.https://www.mdpi.com/2075-4701/9/8/863artificial agingnew aluminum alloyssacrificial anodes
collection DOAJ
language English
format Article
sources DOAJ
author Aline Hernández
Álvaro Torres
Sergio Serna
Jan Mayén
Bernardo Campillo
spellingShingle Aline Hernández
Álvaro Torres
Sergio Serna
Jan Mayén
Bernardo Campillo
Effect of Experimental Aging on the Performance of Al-7.9Mg-13.3Zn and Al-10.5Mg-8.6Zn Alloys as Sacrificial Anodes
Metals
artificial aging
new aluminum alloys
sacrificial anodes
author_facet Aline Hernández
Álvaro Torres
Sergio Serna
Jan Mayén
Bernardo Campillo
author_sort Aline Hernández
title Effect of Experimental Aging on the Performance of Al-7.9Mg-13.3Zn and Al-10.5Mg-8.6Zn Alloys as Sacrificial Anodes
title_short Effect of Experimental Aging on the Performance of Al-7.9Mg-13.3Zn and Al-10.5Mg-8.6Zn Alloys as Sacrificial Anodes
title_full Effect of Experimental Aging on the Performance of Al-7.9Mg-13.3Zn and Al-10.5Mg-8.6Zn Alloys as Sacrificial Anodes
title_fullStr Effect of Experimental Aging on the Performance of Al-7.9Mg-13.3Zn and Al-10.5Mg-8.6Zn Alloys as Sacrificial Anodes
title_full_unstemmed Effect of Experimental Aging on the Performance of Al-7.9Mg-13.3Zn and Al-10.5Mg-8.6Zn Alloys as Sacrificial Anodes
title_sort effect of experimental aging on the performance of al-7.9mg-13.3zn and al-10.5mg-8.6zn alloys as sacrificial anodes
publisher MDPI AG
series Metals
issn 2075-4701
publishDate 2019-08-01
description Light aluminum alloys have a great importance in industry owing to generally accessible costs, low density, good machinability, and corrosion resistance under certain environments. The present work studies aging treatments that preform important roles on the distribution and microstructural changes of two AlMg-Zn alloys, and the resulting effect on the corrosion behavior. The experimental AlMg-Zn alloys were cast and then heat treated at 200 &#176;C, after the solubilization treatments were made, using different treatment times. These alloys showed important changes in their corrosion mechanisms, but mainly, corrosion started at Al<i><sub>x</sub></i>Mg<i><sub>y</sub></i>Zn<i><sub>z</sub></i> complex phases in both alloys. The optimal corrosion rates were reached after 5 and 24 h of heat treatment. These results were obtained through electrochemical techniques in NaCl solutions, and by metallographic analysis using SEM and optical microscopy.
topic artificial aging
new aluminum alloys
sacrificial anodes
url https://www.mdpi.com/2075-4701/9/8/863
work_keys_str_mv AT alinehernandez effectofexperimentalagingontheperformanceofal79mg133znandal105mg86znalloysassacrificialanodes
AT alvarotorres effectofexperimentalagingontheperformanceofal79mg133znandal105mg86znalloysassacrificialanodes
AT sergioserna effectofexperimentalagingontheperformanceofal79mg133znandal105mg86znalloysassacrificialanodes
AT janmayen effectofexperimentalagingontheperformanceofal79mg133znandal105mg86znalloysassacrificialanodes
AT bernardocampillo effectofexperimentalagingontheperformanceofal79mg133znandal105mg86znalloysassacrificialanodes
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