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A Mathematical and Experimental Approach to Improve Strength and Corrosion Resistance of Gas Tungsten Arc, Electron Beam and Friction Stir Welded AA2219-T87 Al-Alloy
https://orcid.org/http://orcid.org/0000-0002-1451-9618
Aluminium alloy AA2219 offers excellent weldability due to its low sensitivity to hot cracking, although it has inadequate weld joint strength. The reduction in the alloy's strength is mainly due to the melting and solidification process. The process parameters that influence the thermomechanical and metallurgical events that occur during welding are primarily responsible for the weld quality. The main objective of this study is to improve tensile strength and corrosion resistance by adopting post weld heat treatment. The influence of post weld heat treatment on the characteristics of AA2219-T87 aluminium alloy welded by gas tungsten arc (GTA), electron beam (EB), and friction stir (FS) processes was discussed in this paper. Experimentation was planned by utilizing a Box-Behnken design of experiments. Square butt joints were fabricated at planned experimental conditions, and samples were prepared for analysis. Response surface methodology (RSM) was employed and used to formulate mathematical models that incorporate welding process parameters to anticipate properties. A global optimization algorithm, simulated annealing (SA), was used to perform multi-objective optimization. For optimized welded samples, post weld heat treatment was shown. The findings indicate that post weld heat treatment improves the strength and corrosion resistance of AA2219-T87 aluminium alloy.
A Mathematical and Experimental Approach to Improve Strength and Corrosion Resistance of Gas Tungsten Arc, Electron Beam and Friction Stir Welded AA2219-T87 Al-Alloy
https://orcid.org/http://orcid.org/0000-0002-1451-9618
Aluminium alloy AA2219 offers excellent weldability due to its low sensitivity to hot cracking, although it has inadequate weld joint strength. The reduction in the alloy's strength is mainly due to the melting and solidification process. The process parameters that influence the thermomechanical and metallurgical events that occur during welding are primarily responsible for the weld quality. The main objective of this study is to improve tensile strength and corrosion resistance by adopting post weld heat treatment. The influence of post weld heat treatment on the characteristics of AA2219-T87 aluminium alloy welded by gas tungsten arc (GTA), electron beam (EB), and friction stir (FS) processes was discussed in this paper. Experimentation was planned by utilizing a Box-Behnken design of experiments. Square butt joints were fabricated at planned experimental conditions, and samples were prepared for analysis. Response surface methodology (RSM) was employed and used to formulate mathematical models that incorporate welding process parameters to anticipate properties. A global optimization algorithm, simulated annealing (SA), was used to perform multi-objective optimization. For optimized welded samples, post weld heat treatment was shown. The findings indicate that post weld heat treatment improves the strength and corrosion resistance of AA2219-T87 aluminium alloy.
A Mathematical and Experimental Approach to Improve Strength and Corrosion Resistance of Gas Tungsten Arc, Electron Beam and Friction Stir Welded AA2219-T87 Al-Alloy
https://orcid.org/http://orcid.org/0000-0002-1451-9618
Aluminium alloy AA2219 offers excellent weldability due to its low sensitivity to hot cracking, although it has inadequate weld joint strength. The reduction in the alloy's strength is mainly due to the melting and solidification process. The process parameters that influence the thermomechanical and metallurgical events that occur during welding are primarily responsible for the weld quality. The main objective of this study is to improve tensile strength and corrosion resistance by adopting post weld heat treatment. The influence of post weld heat treatment on the characteristics of AA2219-T87 aluminium alloy welded by gas tungsten arc (GTA), electron beam (EB), and friction stir (FS) processes was discussed in this paper. Experimentation was planned by utilizing a Box-Behnken design of experiments. Square butt joints were fabricated at planned experimental conditions, and samples were prepared for analysis. Response surface methodology (RSM) was employed and used to formulate mathematical models that incorporate welding process parameters to anticipate properties. A global optimization algorithm, simulated annealing (SA), was used to perform multi-objective optimization. For optimized welded samples, post weld heat treatment was shown. The findings indicate that post weld heat treatment improves the strength and corrosion resistance of AA2219-T87 aluminium alloy.
A Mathematical and Experimental Approach to Improve Strength and Corrosion Resistance of Gas Tungsten Arc, Electron Beam and Friction Stir Welded AA2219-T87 Al-Alloy
J. Inst. Eng. India Ser. D
Rajnaveen, B. (Autor:in) / Rambabu, G. (Autor:in) / Prakash, K. (Autor:in) / Srinivasa Rao, K. (Autor:in)
01.06.2023
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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