Numerical Simulations Based on a Meshfree Method for Nickel-Steel Welded Joint Manufactured by Micro-Jet Cooling
The article presents a numerical–experimental approach to the weldability and mechanical resistance of the joint of Alloy 59 (2.4605, nickel-chromium-molybdenum) and S355J2W (1.8965) structural steel manufactured by the MIG process with the use of micro-jet cooling. This research was considered beca...
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MDPI AG
2022-12-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/23/8579 |
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| author | Anita Uściłowska Bożena Szczucka-Lasota Tomasz Węgrzyn Tadeusz Szymczak Bogusław Łazarz Joanna Kamińska |
| author_facet | Anita Uściłowska Bożena Szczucka-Lasota Tomasz Węgrzyn Tadeusz Szymczak Bogusław Łazarz Joanna Kamińska |
| author_sort | Anita Uściłowska |
| collection | DOAJ |
| description | The article presents a numerical–experimental approach to the weldability and mechanical resistance of the joint of Alloy 59 (2.4605, nickel-chromium-molybdenum) and S355J2W (1.8965) structural steel manufactured by the MIG process with the use of micro-jet cooling. This research was considered because the standard MIG process does not guarantee the procurement of a mixed hard-rusting structural steel superalloy weld of a repeatable and acceptable quality. Welds made through the classic MIG process express cracks that result from their unfavorable metallographic microstructure, while the joint supported by micro-jet cooling does not reflect any cracks and has a high strength with good flexibility. This was achieved by the application of helium for cooling. The joining technology was also considered in the numerical stage, represented by calculations in situ. For this purpose, the fundamental solution method (FSM) for the simulation of heat transfer during the process of welding with micro-jet cooling was implemented according to the initial boundary value problem (IBVP). The problem was solved employing the method of combining the finite difference method, Picard iterations, approximation by the radial basis function, and the fundamental solution method so as to solve the IVBP. The proposed method was validated by the data and results obtained during in situ experiments. The numerical approach enabled us to obtain variations in the temperature distribution values in HAZ with its different dimensional variants, ranging between 600 °C and 1400 °C. |
| first_indexed | 2024-03-09T17:41:34Z |
| format | Article |
| id | doaj.art-583aab13dcdb42c5a76eee645e95b917 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T17:41:34Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-583aab13dcdb42c5a76eee645e95b9172023-11-24T11:30:39ZengMDPI AGMaterials1996-19442022-12-011523857910.3390/ma15238579Numerical Simulations Based on a Meshfree Method for Nickel-Steel Welded Joint Manufactured by Micro-Jet CoolingAnita Uściłowska0Bożena Szczucka-Lasota1Tomasz Węgrzyn2Tadeusz Szymczak3Bogusław Łazarz4Joanna Kamińska5Faculty of Mechanical Engineering, Institute of Materials Technology, Poznan University of Technology, 60-965 Poznan, PolandDepartment of Road Transport, Faculty of Transport and Aviation Engineering, Silesian University of Technology, 44-100 Gliwice, PolandDepartment of Automotive Vehicle Maintenance, Faculty of Transport and Aviation Engineering, Silesian University of Technology, 44-100 Gliwice, PolandDepartment of Vehicle Type-Approval & Testing, Motor Transport Institute, 03-301 Warsaw, PolandDepartment of Road Transport, Faculty of Transport and Aviation Engineering, Silesian University of Technology, 44-100 Gliwice, PolandDepartment of Applied Mathematics, The Faculty of Environmental Engineering and Geodesy, Wroclaw University of Environmental Life Sciences, 50-357 Wroclaw, PolandThe article presents a numerical–experimental approach to the weldability and mechanical resistance of the joint of Alloy 59 (2.4605, nickel-chromium-molybdenum) and S355J2W (1.8965) structural steel manufactured by the MIG process with the use of micro-jet cooling. This research was considered because the standard MIG process does not guarantee the procurement of a mixed hard-rusting structural steel superalloy weld of a repeatable and acceptable quality. Welds made through the classic MIG process express cracks that result from their unfavorable metallographic microstructure, while the joint supported by micro-jet cooling does not reflect any cracks and has a high strength with good flexibility. This was achieved by the application of helium for cooling. The joining technology was also considered in the numerical stage, represented by calculations in situ. For this purpose, the fundamental solution method (FSM) for the simulation of heat transfer during the process of welding with micro-jet cooling was implemented according to the initial boundary value problem (IBVP). The problem was solved employing the method of combining the finite difference method, Picard iterations, approximation by the radial basis function, and the fundamental solution method so as to solve the IVBP. The proposed method was validated by the data and results obtained during in situ experiments. The numerical approach enabled us to obtain variations in the temperature distribution values in HAZ with its different dimensional variants, ranging between 600 °C and 1400 °C.https://www.mdpi.com/1996-1944/15/23/8579energy devicessuperalloyhard-rusting steelmethod of fundamental solutionsweldingmicro-jet cooling |
| spellingShingle | Anita Uściłowska Bożena Szczucka-Lasota Tomasz Węgrzyn Tadeusz Szymczak Bogusław Łazarz Joanna Kamińska Numerical Simulations Based on a Meshfree Method for Nickel-Steel Welded Joint Manufactured by Micro-Jet Cooling Materials energy devices superalloy hard-rusting steel method of fundamental solutions welding micro-jet cooling |
| title | Numerical Simulations Based on a Meshfree Method for Nickel-Steel Welded Joint Manufactured by Micro-Jet Cooling |
| title_full | Numerical Simulations Based on a Meshfree Method for Nickel-Steel Welded Joint Manufactured by Micro-Jet Cooling |
| title_fullStr | Numerical Simulations Based on a Meshfree Method for Nickel-Steel Welded Joint Manufactured by Micro-Jet Cooling |
| title_full_unstemmed | Numerical Simulations Based on a Meshfree Method for Nickel-Steel Welded Joint Manufactured by Micro-Jet Cooling |
| title_short | Numerical Simulations Based on a Meshfree Method for Nickel-Steel Welded Joint Manufactured by Micro-Jet Cooling |
| title_sort | numerical simulations based on a meshfree method for nickel steel welded joint manufactured by micro jet cooling |
| topic | energy devices superalloy hard-rusting steel method of fundamental solutions welding micro-jet cooling |
| url | https://www.mdpi.com/1996-1944/15/23/8579 |
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