Mathematical modeling and optimization of vacuum diffusion bonding parameters for predicting and enhancing the strength of dissimilar IN-718/MSS-410 joints using RSM for power generation applications
The dissimilar welding of Inconel 718 (IN-718) alloy and AISI 410 martensitic stainless steel (MSS-410) is crucial in advanced gas turbines, and ultra-supercritical power plants to meet the demands of different operating conditions and lower the cost. However, the dissimilar fusion welding of IN-718...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-06-01
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| Series: | Journal of Advanced Joining Processes |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S266633092400030X |
| _version_ | 1797260317771694080 |
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| author | Arun Negemiya Selvarajan Rajakumar Tushar Sonar Mikhail Ivanov |
| author_facet | Arun Negemiya Selvarajan Rajakumar Tushar Sonar Mikhail Ivanov |
| author_sort | Arun Negemiya |
| collection | DOAJ |
| description | The dissimilar welding of Inconel 718 (IN-718) alloy and AISI 410 martensitic stainless steel (MSS-410) is crucial in advanced gas turbines, and ultra-supercritical power plants to meet the demands of different operating conditions and lower the cost. However, the dissimilar fusion welding of IN-718/MSS-410 is challenging due to the differences in thermal expansion coefficient, physical and mechanical properties of base metals. In this study, the solid-state vacuum diffusion bonding (VDB) technology is employed to develop the dissimilar IN-718/MSS-410 joints. The aim of this study is to find the optimal combination of VDB parameters such as diffusion bonding pressure-DBP (MPa), diffusion bonding temperature-DBT (°C) and diffusion bonding time-DBt (min) for enhancing the strength of IN-718/MSS-410 joints. The response surface methodology (RSM) was integrated for designing the experimental matrix. The strength performance of VDB joints was evaluated by conducting the lap shear strength (LSS) and bonding strength (BS) tests. The mathematical LSS and BS predicting models were established using regression analysis and verified employing the variance analysis. The microstructural features were analyzed using optical and scanning electron microscopy (SEM). The X-ray diffractometer (XRD) was employed to identify the phases evolution in the joint interface. The experimental results revealed that the IN-718/MSS-410 joints diffusion bonded using the DBP of 14 MPa, DBT of 960 °C and DBt of 90 min exhibited the greater LSS of 280 MPa and BS of 373 MPa. The prediction models accurately predicted the LSS and BS of IN-718/MSS-410 joints within 2 % error at 95 % confidence. It is primarily concerned with developing the optimal bonding width with the fewest possible embrittlement implications and better joining interface coalescence. According to variance analysis, the DBt was the most significant parameter influencing the LSS and BS of joints followed by the DBP and DBT. |
| first_indexed | 2024-04-24T23:23:24Z |
| format | Article |
| id | doaj.art-02220ae65b16469fb441b6517e18f790 |
| institution | Directory Open Access Journal |
| issn | 2666-3309 |
| language | English |
| last_indexed | 2024-04-24T23:23:24Z |
| publishDate | 2024-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Advanced Joining Processes |
| spelling | doaj.art-02220ae65b16469fb441b6517e18f7902024-03-16T05:09:20ZengElsevierJournal of Advanced Joining Processes2666-33092024-06-019100214Mathematical modeling and optimization of vacuum diffusion bonding parameters for predicting and enhancing the strength of dissimilar IN-718/MSS-410 joints using RSM for power generation applicationsArun Negemiya0Selvarajan Rajakumar1Tushar Sonar2Mikhail Ivanov3Department of Mechanical Engineering, Sri Shakthi Institute of Engineering and Technology, Coimbatore, 641062, Tamil Nadu, India; Corresponding author.Department of Manufacturing Engineering, Annamalai University, Chidambaram, 608002, Tamil Nadu, IndiaDepartment of Welding Engineering, Institution of Engineering and Technology, South Ural State University (National Research University), Chelyabinsk, 454080, RussiaDepartment of Welding Engineering, Institution of Engineering and Technology, South Ural State University (National Research University), Chelyabinsk, 454080, RussiaThe dissimilar welding of Inconel 718 (IN-718) alloy and AISI 410 martensitic stainless steel (MSS-410) is crucial in advanced gas turbines, and ultra-supercritical power plants to meet the demands of different operating conditions and lower the cost. However, the dissimilar fusion welding of IN-718/MSS-410 is challenging due to the differences in thermal expansion coefficient, physical and mechanical properties of base metals. In this study, the solid-state vacuum diffusion bonding (VDB) technology is employed to develop the dissimilar IN-718/MSS-410 joints. The aim of this study is to find the optimal combination of VDB parameters such as diffusion bonding pressure-DBP (MPa), diffusion bonding temperature-DBT (°C) and diffusion bonding time-DBt (min) for enhancing the strength of IN-718/MSS-410 joints. The response surface methodology (RSM) was integrated for designing the experimental matrix. The strength performance of VDB joints was evaluated by conducting the lap shear strength (LSS) and bonding strength (BS) tests. The mathematical LSS and BS predicting models were established using regression analysis and verified employing the variance analysis. The microstructural features were analyzed using optical and scanning electron microscopy (SEM). The X-ray diffractometer (XRD) was employed to identify the phases evolution in the joint interface. The experimental results revealed that the IN-718/MSS-410 joints diffusion bonded using the DBP of 14 MPa, DBT of 960 °C and DBt of 90 min exhibited the greater LSS of 280 MPa and BS of 373 MPa. The prediction models accurately predicted the LSS and BS of IN-718/MSS-410 joints within 2 % error at 95 % confidence. It is primarily concerned with developing the optimal bonding width with the fewest possible embrittlement implications and better joining interface coalescence. According to variance analysis, the DBt was the most significant parameter influencing the LSS and BS of joints followed by the DBP and DBT.http://www.sciencedirect.com/science/article/pii/S266633092400030XInconel 718 alloyMSS-410 steelVacuum diffusion bondingMathematical modelingOptimizationLap shear strength |
| spellingShingle | Arun Negemiya Selvarajan Rajakumar Tushar Sonar Mikhail Ivanov Mathematical modeling and optimization of vacuum diffusion bonding parameters for predicting and enhancing the strength of dissimilar IN-718/MSS-410 joints using RSM for power generation applications Journal of Advanced Joining Processes Inconel 718 alloy MSS-410 steel Vacuum diffusion bonding Mathematical modeling Optimization Lap shear strength |
| title | Mathematical modeling and optimization of vacuum diffusion bonding parameters for predicting and enhancing the strength of dissimilar IN-718/MSS-410 joints using RSM for power generation applications |
| title_full | Mathematical modeling and optimization of vacuum diffusion bonding parameters for predicting and enhancing the strength of dissimilar IN-718/MSS-410 joints using RSM for power generation applications |
| title_fullStr | Mathematical modeling and optimization of vacuum diffusion bonding parameters for predicting and enhancing the strength of dissimilar IN-718/MSS-410 joints using RSM for power generation applications |
| title_full_unstemmed | Mathematical modeling and optimization of vacuum diffusion bonding parameters for predicting and enhancing the strength of dissimilar IN-718/MSS-410 joints using RSM for power generation applications |
| title_short | Mathematical modeling and optimization of vacuum diffusion bonding parameters for predicting and enhancing the strength of dissimilar IN-718/MSS-410 joints using RSM for power generation applications |
| title_sort | mathematical modeling and optimization of vacuum diffusion bonding parameters for predicting and enhancing the strength of dissimilar in 718 mss 410 joints using rsm for power generation applications |
| topic | Inconel 718 alloy MSS-410 steel Vacuum diffusion bonding Mathematical modeling Optimization Lap shear strength |
| url | http://www.sciencedirect.com/science/article/pii/S266633092400030X |
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