Microstructure, Mechanical Properties, and Corrosion Resistance of Thermomechanically Processed AlZn6Mg0.8Zr Alloy

The paper presents results of the investigations on the effect of low-temperature thermomechanical treatment (LTTT) on the microstructure of AlZn6Mg0.8Zr alloy (7000 series) and its mechanical properties as well as electrochemical and stress corrosion resistance. For comparison of the LTTT effect, t...

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Autores principales: Kowalski, Aleksander, Ozgowicz, Wojciech, Jurczak, Wojciech, Grajcar, Adam, Boczkal, Sonia, Żelechowski, Janusz
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5951454/
https://www.ncbi.nlm.nih.gov/pubmed/29642448
http://dx.doi.org/10.3390/ma11040570
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author Kowalski, Aleksander
Ozgowicz, Wojciech
Jurczak, Wojciech
Grajcar, Adam
Boczkal, Sonia
Żelechowski, Janusz
author_facet Kowalski, Aleksander
Ozgowicz, Wojciech
Jurczak, Wojciech
Grajcar, Adam
Boczkal, Sonia
Żelechowski, Janusz
author_sort Kowalski, Aleksander
collection PubMed
description The paper presents results of the investigations on the effect of low-temperature thermomechanical treatment (LTTT) on the microstructure of AlZn6Mg0.8Zr alloy (7000 series) and its mechanical properties as well as electrochemical and stress corrosion resistance. For comparison of the LTTT effect, the alloy was subjected to conventional precipitation hardening. Comparative studies were conducted in the fields of metallographic examinations and static tensile tests. It was found that mechanical properties after the LTTT were better in comparison to after conventional heat treatment (CHT). The tested alloy after low-temperature thermomechanical treatment with increasing plastic deformation shows decreased electrochemical corrosion resistance during potentiodynamic tests. The alloy after low-temperature thermomechanical treatment with deformation degree in the range of 10 to 30% is characterized by a high resistance to stress corrosion specified by the level of P(SCC) indices.
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spelling pubmed-59514542018-05-15 Microstructure, Mechanical Properties, and Corrosion Resistance of Thermomechanically Processed AlZn6Mg0.8Zr Alloy Kowalski, Aleksander Ozgowicz, Wojciech Jurczak, Wojciech Grajcar, Adam Boczkal, Sonia Żelechowski, Janusz Materials (Basel) Article The paper presents results of the investigations on the effect of low-temperature thermomechanical treatment (LTTT) on the microstructure of AlZn6Mg0.8Zr alloy (7000 series) and its mechanical properties as well as electrochemical and stress corrosion resistance. For comparison of the LTTT effect, the alloy was subjected to conventional precipitation hardening. Comparative studies were conducted in the fields of metallographic examinations and static tensile tests. It was found that mechanical properties after the LTTT were better in comparison to after conventional heat treatment (CHT). The tested alloy after low-temperature thermomechanical treatment with increasing plastic deformation shows decreased electrochemical corrosion resistance during potentiodynamic tests. The alloy after low-temperature thermomechanical treatment with deformation degree in the range of 10 to 30% is characterized by a high resistance to stress corrosion specified by the level of P(SCC) indices. MDPI 2018-04-07 /pmc/articles/PMC5951454/ /pubmed/29642448 http://dx.doi.org/10.3390/ma11040570 Text en © 2018 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kowalski, Aleksander
Ozgowicz, Wojciech
Jurczak, Wojciech
Grajcar, Adam
Boczkal, Sonia
Żelechowski, Janusz
Microstructure, Mechanical Properties, and Corrosion Resistance of Thermomechanically Processed AlZn6Mg0.8Zr Alloy
title Microstructure, Mechanical Properties, and Corrosion Resistance of Thermomechanically Processed AlZn6Mg0.8Zr Alloy
title_full Microstructure, Mechanical Properties, and Corrosion Resistance of Thermomechanically Processed AlZn6Mg0.8Zr Alloy
title_fullStr Microstructure, Mechanical Properties, and Corrosion Resistance of Thermomechanically Processed AlZn6Mg0.8Zr Alloy
title_full_unstemmed Microstructure, Mechanical Properties, and Corrosion Resistance of Thermomechanically Processed AlZn6Mg0.8Zr Alloy
title_short Microstructure, Mechanical Properties, and Corrosion Resistance of Thermomechanically Processed AlZn6Mg0.8Zr Alloy
title_sort microstructure, mechanical properties, and corrosion resistance of thermomechanically processed alzn6mg0.8zr alloy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5951454/
https://www.ncbi.nlm.nih.gov/pubmed/29642448
http://dx.doi.org/10.3390/ma11040570
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