Microstructural changes and their influence on corrosion post-annealing treatment of copper and AISI 5140 steel in 3.5 wt% NaCl medium

AbstractCorrosion is one of the major issues faced by marine industries. Two of the major metals used in these industries include copper and AISI 5140 steel. This iterates the importance of understanding the microstructure and its influence on the corrosion behavior of these metals in 3.5 wt% NaCl t...

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Main Authors: Jilna Jomy, Sathyashankara Sharma, P.R. Prabhu, Pavan Hiremath, Deepa Prabhu
Format: Article
Language:English
Published: Taylor & Francis Group 2023-12-01
Series:Cogent Engineering
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/23311916.2023.2244770
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author Jilna Jomy
Sathyashankara Sharma
P.R. Prabhu
Pavan Hiremath
Deepa Prabhu
author_facet Jilna Jomy
Sathyashankara Sharma
P.R. Prabhu
Pavan Hiremath
Deepa Prabhu
author_sort Jilna Jomy
collection DOAJ
description AbstractCorrosion is one of the major issues faced by marine industries. Two of the major metals used in these industries include copper and AISI 5140 steel. This iterates the importance of understanding the microstructure and its influence on the corrosion behavior of these metals in 3.5 wt% NaCl that is studied here. Annealing treatment was performed for both the metals, and the microstructure before and after the annealing treatment was performed using an optical microscope and SEM. X-ray diffraction (XRD) of the metals before and after heat treatment was performed, and it was found that the annealing treatment caused an increase in the crystallite size irrespective of the metal. The samples were subjected to Vicker’s microhardness testing, and a decrease in the hardness was achieved post-annealing. The electrochemical studies further proved that there is an improvement in corrosion resistance post-annealing. The kinetic and thermodynamic parameters are described using Arrhenius and transition state theories.
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spelling doaj.art-f2bf518ea62e4305b03a075d00c85d8f2024-02-23T15:01:40ZengTaylor & Francis GroupCogent Engineering2331-19162023-12-0110110.1080/23311916.2023.2244770Microstructural changes and their influence on corrosion post-annealing treatment of copper and AISI 5140 steel in 3.5 wt% NaCl mediumJilna Jomy0Sathyashankara Sharma1P.R. Prabhu2Pavan Hiremath3Deepa Prabhu4Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, IndiaDepartment of Mechanical & Industrial Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, IndiaDepartment of Mechatronics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, IndiaDepartment of Mechanical & Industrial Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, IndiaDepartment of Chemistry, Manipal Institute of Technology Bengaluru, Manipal Academy of Higher Education, Manipal, Karnataka, IndiaAbstractCorrosion is one of the major issues faced by marine industries. Two of the major metals used in these industries include copper and AISI 5140 steel. This iterates the importance of understanding the microstructure and its influence on the corrosion behavior of these metals in 3.5 wt% NaCl that is studied here. Annealing treatment was performed for both the metals, and the microstructure before and after the annealing treatment was performed using an optical microscope and SEM. X-ray diffraction (XRD) of the metals before and after heat treatment was performed, and it was found that the annealing treatment caused an increase in the crystallite size irrespective of the metal. The samples were subjected to Vicker’s microhardness testing, and a decrease in the hardness was achieved post-annealing. The electrochemical studies further proved that there is an improvement in corrosion resistance post-annealing. The kinetic and thermodynamic parameters are described using Arrhenius and transition state theories.https://www.tandfonline.com/doi/10.1080/23311916.2023.2244770corrosionannealing3.5 wt% NaClAISI 5140 steelcopperEIS
spellingShingle Jilna Jomy
Sathyashankara Sharma
P.R. Prabhu
Pavan Hiremath
Deepa Prabhu
Microstructural changes and their influence on corrosion post-annealing treatment of copper and AISI 5140 steel in 3.5 wt% NaCl medium
Cogent Engineering
corrosion
annealing
3.5 wt% NaCl
AISI 5140 steel
copper
EIS
title Microstructural changes and their influence on corrosion post-annealing treatment of copper and AISI 5140 steel in 3.5 wt% NaCl medium
title_full Microstructural changes and their influence on corrosion post-annealing treatment of copper and AISI 5140 steel in 3.5 wt% NaCl medium
title_fullStr Microstructural changes and their influence on corrosion post-annealing treatment of copper and AISI 5140 steel in 3.5 wt% NaCl medium
title_full_unstemmed Microstructural changes and their influence on corrosion post-annealing treatment of copper and AISI 5140 steel in 3.5 wt% NaCl medium
title_short Microstructural changes and their influence on corrosion post-annealing treatment of copper and AISI 5140 steel in 3.5 wt% NaCl medium
title_sort microstructural changes and their influence on corrosion post annealing treatment of copper and aisi 5140 steel in 3 5 wt nacl medium
topic corrosion
annealing
3.5 wt% NaCl
AISI 5140 steel
copper
EIS
url https://www.tandfonline.com/doi/10.1080/23311916.2023.2244770
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