Fabrication effect on SLM and cast Inconel 718 properties for energy conversion
This study investigates the effect of fabrication methods on the microstructural, mechanical, and electrochemical durability of nickel alloy IN718, aiming to establish it as a cost-effective electrode material for direct seawater electrolysis using renewable energy sources. Selective laser melting (...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-09-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425020514 |
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| author | Hafiz Muzammil Irshad Ameeq Farooq Muhammad Ammar Abbas Saeed Hakeem Bilal Anjum Ahmed Samaneh Shahgaldi Muhammad Ali Ehsan Khalid Askar |
| author_facet | Hafiz Muzammil Irshad Ameeq Farooq Muhammad Ammar Abbas Saeed Hakeem Bilal Anjum Ahmed Samaneh Shahgaldi Muhammad Ali Ehsan Khalid Askar |
| author_sort | Hafiz Muzammil Irshad |
| collection | DOAJ |
| description | This study investigates the effect of fabrication methods on the microstructural, mechanical, and electrochemical durability of nickel alloy IN718, aiming to establish it as a cost-effective electrode material for direct seawater electrolysis using renewable energy sources. Selective laser melting (SLM) and conventional casting methods were used to fabricate IN718 alloy electrodes. Microstructural and mechanical characterization results show SLM samples have better compaction with maximum average hardness and densification of 347 (HV 0.5) and 99.2 %, respectively. This attribute is due to ultra-fast cooling rate and high-temperature gradient during sintering of 3D-printed samples in a layer-by-layer fashion. The electrochemical durability was investigated in 3.5 wt% NaCl electrolyte solution as a function of temperature (30, 50, and 80 °C). Electrochemical impedance spectroscopy (EIS) and Potentiodynamic polarization (PD) tests were conducted to evaluate electrochemical behavior. It was found that 3D printed samples have lower corrosion current density (52 μA/cm2) and dissolution rate (21.26 mpy) at higher temperatures. Protective film capacitance increases with reduced film thickness due to fine-grained and desirable microstructure. Therefore, modern technology (3D printing), compared to conventional production methods, offers advantages and has the potential to produce low-cost and efficient electrode material (nickel-based alloys) for energy conversion systems and other modern engineering applications. |
| format | Article |
| id | doaj-art-4fcdd7e8f383424a844127340fb71335 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-4fcdd7e8f383424a844127340fb713352025-08-20T05:07:01ZengElsevierJournal of Materials Research and Technology2238-78542025-09-01382453246510.1016/j.jmrt.2025.08.098Fabrication effect on SLM and cast Inconel 718 properties for energy conversionHafiz Muzammil Irshad0Ameeq Farooq1Muhammad Ammar2Abbas Saeed Hakeem3Bilal Anjum Ahmed4Samaneh Shahgaldi5Muhammad Ali Ehsan6Khalid Askar7Institute of Eco-Materials, Eco-Products and Eco-Energies (I2E3), University of Quebec at Trois-Rivieres (UQTR), Trois-Rivieres, QC, G8Z 4M3, CanadaCorrosion Control Research Cell, Institute of Metallurgy and Materials Engineering, Faculty of Chemical and Materials Engineering, University of the Punjab, Lahore, 54590, PakistanCorrosion Control Research Cell, Institute of Metallurgy and Materials Engineering, Faculty of Chemical and Materials Engineering, University of the Punjab, Lahore, 54590, PakistanInterdisciplinary Research Center for Hydrogen Technologies & Carbon Management (IRC-HTCM), King Fahd University of Petroleum and Minerals, Dhahran, 31261, Kingdom of Saudi Arabia; Materials Science and Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia; Corresponding author. Interdisciplinary Research Center for Hydrogen Technologies & Carbon Management (IRC-HTCM), King Fahd University of Petroleum and Minerals, Dhahran, 31261 Kingdom of Saudi Arabia.Materials Science and Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia; Core Research Facilities, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Kingdom of Saudi ArabiaInstitute of Eco-Materials, Eco-Products and Eco-Energies (I2E3), University of Quebec at Trois-Rivieres (UQTR), Trois-Rivieres, QC, G8Z 4M3, CanadaInterdisciplinary Research Center for Hydrogen Technologies & Carbon Management (IRC-HTCM), King Fahd University of Petroleum and Minerals, Dhahran, 31261, Kingdom of Saudi ArabiaMechanical & Nuclear Engineering, Khalifa University, Abu Dhabi, United Arab Emirates; Corresponding author.This study investigates the effect of fabrication methods on the microstructural, mechanical, and electrochemical durability of nickel alloy IN718, aiming to establish it as a cost-effective electrode material for direct seawater electrolysis using renewable energy sources. Selective laser melting (SLM) and conventional casting methods were used to fabricate IN718 alloy electrodes. Microstructural and mechanical characterization results show SLM samples have better compaction with maximum average hardness and densification of 347 (HV 0.5) and 99.2 %, respectively. This attribute is due to ultra-fast cooling rate and high-temperature gradient during sintering of 3D-printed samples in a layer-by-layer fashion. The electrochemical durability was investigated in 3.5 wt% NaCl electrolyte solution as a function of temperature (30, 50, and 80 °C). Electrochemical impedance spectroscopy (EIS) and Potentiodynamic polarization (PD) tests were conducted to evaluate electrochemical behavior. It was found that 3D printed samples have lower corrosion current density (52 μA/cm2) and dissolution rate (21.26 mpy) at higher temperatures. Protective film capacitance increases with reduced film thickness due to fine-grained and desirable microstructure. Therefore, modern technology (3D printing), compared to conventional production methods, offers advantages and has the potential to produce low-cost and efficient electrode material (nickel-based alloys) for energy conversion systems and other modern engineering applications.http://www.sciencedirect.com/science/article/pii/S2238785425020514Selective laser meltingCastingInconel 718Electrochemical impedance spectroscopySeawater electrolysis |
| spellingShingle | Hafiz Muzammil Irshad Ameeq Farooq Muhammad Ammar Abbas Saeed Hakeem Bilal Anjum Ahmed Samaneh Shahgaldi Muhammad Ali Ehsan Khalid Askar Fabrication effect on SLM and cast Inconel 718 properties for energy conversion Journal of Materials Research and Technology Selective laser melting Casting Inconel 718 Electrochemical impedance spectroscopy Seawater electrolysis |
| title | Fabrication effect on SLM and cast Inconel 718 properties for energy conversion |
| title_full | Fabrication effect on SLM and cast Inconel 718 properties for energy conversion |
| title_fullStr | Fabrication effect on SLM and cast Inconel 718 properties for energy conversion |
| title_full_unstemmed | Fabrication effect on SLM and cast Inconel 718 properties for energy conversion |
| title_short | Fabrication effect on SLM and cast Inconel 718 properties for energy conversion |
| title_sort | fabrication effect on slm and cast inconel 718 properties for energy conversion |
| topic | Selective laser melting Casting Inconel 718 Electrochemical impedance spectroscopy Seawater electrolysis |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425020514 |
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