Directed energy deposition (DED) of Inconel 718-SS316 L bimetallic structures: Experimental investigations and optimization through artificial humming bird algorithm for improved high strain rate and mechanical properties
The present work investigates the influence of direct energy deposition (DED) based additive manufacturing (AM) parameters on the high strain rate and mechanical properties of Inconel 718-SS316 L bimetallic structures fabricated at different processing conditions. The bimetallic structures were fabr...
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Elsevier
2025-03-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025001021 |
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| author | D. Rajamani A.R. Vinod K. Niranjan Reddy M. Siva Kumar |
| author_facet | D. Rajamani A.R. Vinod K. Niranjan Reddy M. Siva Kumar |
| author_sort | D. Rajamani |
| collection | DOAJ |
| description | The present work investigates the influence of direct energy deposition (DED) based additive manufacturing (AM) parameters on the high strain rate and mechanical properties of Inconel 718-SS316 L bimetallic structures fabricated at different processing conditions. The bimetallic structures were fabricated based on the box-behnken design methodology by varying the most significant DED parameters such as laser power (300–500 W), scanning speed (300–500 mm/min) and powder feedrate (3–4 g/min). Influence of these parameters on the high strain rate behaviour and microhardness were assessed through statistical analysis using analysis of variance (ANOVA) and three-dimensional response surface plots. Optimal DED parameters for improved response characteristics were attained through a metaheuristic-based hummingbird algorithm. The microstructural investigations including metallographic analysis, scanning electron microscope (SEM) with elemental dispersive spectroscopy (EDS) analysis and electron backscattered diffraction (EBSD) analysis were performed at the intermetallic regions of bimetallic samples which were fabricated at optimal processing conditions and the mechanical fractured surfaces. This study reveals the insights into the development of bimetallic structures through DED process with their microstructures, process-property relationship and multi-response optimization through metaheuristic algorithms concerning the improved high strain rate and mechanical characteristics. |
| format | Article |
| id | doaj-art-e8b52c3f246e437c99610cec30c5b440 |
| institution | Kabale University |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-e8b52c3f246e437c99610cec30c5b4402025-01-19T06:26:35ZengElsevierResults in Engineering2590-12302025-03-0125104014Directed energy deposition (DED) of Inconel 718-SS316 L bimetallic structures: Experimental investigations and optimization through artificial humming bird algorithm for improved high strain rate and mechanical propertiesD. Rajamani0A.R. Vinod1K. Niranjan Reddy2M. Siva Kumar3Centre for Advanced Materials Processing, Department of Mechanical Engineering, Vel Tech Rangarajan Dr Sagunthala R&D Institute of Science and Technology, Chennai 600062, India; Corresponding author.Centre for Additive and Special Manufacturing Processes, Central Manufacturing Technology Institute, Bengaluru 560022, IndiaCentre for Micro, Nano Manufacturing and Metrology, Central Manufacturing Technology Institute, Bengaluru 560022, IndiaDepartment of Mechanical Engineering, SRM TRP Engineering College, Tiruchirappalli 625501, IndiaThe present work investigates the influence of direct energy deposition (DED) based additive manufacturing (AM) parameters on the high strain rate and mechanical properties of Inconel 718-SS316 L bimetallic structures fabricated at different processing conditions. The bimetallic structures were fabricated based on the box-behnken design methodology by varying the most significant DED parameters such as laser power (300–500 W), scanning speed (300–500 mm/min) and powder feedrate (3–4 g/min). Influence of these parameters on the high strain rate behaviour and microhardness were assessed through statistical analysis using analysis of variance (ANOVA) and three-dimensional response surface plots. Optimal DED parameters for improved response characteristics were attained through a metaheuristic-based hummingbird algorithm. The microstructural investigations including metallographic analysis, scanning electron microscope (SEM) with elemental dispersive spectroscopy (EDS) analysis and electron backscattered diffraction (EBSD) analysis were performed at the intermetallic regions of bimetallic samples which were fabricated at optimal processing conditions and the mechanical fractured surfaces. This study reveals the insights into the development of bimetallic structures through DED process with their microstructures, process-property relationship and multi-response optimization through metaheuristic algorithms concerning the improved high strain rate and mechanical characteristics.http://www.sciencedirect.com/science/article/pii/S2590123025001021Additive manufacturingBimetallic structuresOptimizationDirect energy depositionHigh strain rateMicrohardness |
| spellingShingle | D. Rajamani A.R. Vinod K. Niranjan Reddy M. Siva Kumar Directed energy deposition (DED) of Inconel 718-SS316 L bimetallic structures: Experimental investigations and optimization through artificial humming bird algorithm for improved high strain rate and mechanical properties Results in Engineering Additive manufacturing Bimetallic structures Optimization Direct energy deposition High strain rate Microhardness |
| title | Directed energy deposition (DED) of Inconel 718-SS316 L bimetallic structures: Experimental investigations and optimization through artificial humming bird algorithm for improved high strain rate and mechanical properties |
| title_full | Directed energy deposition (DED) of Inconel 718-SS316 L bimetallic structures: Experimental investigations and optimization through artificial humming bird algorithm for improved high strain rate and mechanical properties |
| title_fullStr | Directed energy deposition (DED) of Inconel 718-SS316 L bimetallic structures: Experimental investigations and optimization through artificial humming bird algorithm for improved high strain rate and mechanical properties |
| title_full_unstemmed | Directed energy deposition (DED) of Inconel 718-SS316 L bimetallic structures: Experimental investigations and optimization through artificial humming bird algorithm for improved high strain rate and mechanical properties |
| title_short | Directed energy deposition (DED) of Inconel 718-SS316 L bimetallic structures: Experimental investigations and optimization through artificial humming bird algorithm for improved high strain rate and mechanical properties |
| title_sort | directed energy deposition ded of inconel 718 ss316 l bimetallic structures experimental investigations and optimization through artificial humming bird algorithm for improved high strain rate and mechanical properties |
| topic | Additive manufacturing Bimetallic structures Optimization Direct energy deposition High strain rate Microhardness |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025001021 |
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