Abstract
The thin-wall specimens of ER2594 duplex stainless steel (DSS) were prepared by metal electrode inert gas shielded arc welding (MIG). It is found that the duplex stainless steel prepared has good forming quality and almost no defects. Microstructure observation shows that there are ferrite and austenite, and no harmful phases such as sigma—σ—and lambda—λ—are observed due to low heat input and suitable interlaminar temperature. The microhardness distribution of transverse and longitudinal sections is uniform, and the microhardness value has been found to be 285HV0.2 and 301HV0.2, respectively. The mechanical properties of the sample are excellent, transverse yield strength 933 MPa, tensile strength 1013 MPa, elongation 27.7% and 25 ℃ Charpy impact value 229 J; and longitudinal yield strength 860 MPa, tensile strength 941 MPa, elongation 25.2% and 25 ℃ Charpy impact value 228 J. Lastly, the electrochemical test results show that the arc additive manufacturing duplex stainless steel has good corrosion resistance.
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Acknowledgements
The authors are grateful to the University Synergy Innovation Program of Anhui Province, the Natural Science Foundation of Anhui Province, and the talent program of Anhui Science and Technology Univer for their financial, and the Natural Science Foundation of Colleges and Universities in Anhui Province support through the Grants Numbers GXXT-2019-022, 1908085QE174, and RCYJ201905, KJ2020A0073, respectively.
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Wu, S., Guo, C., Liu, W. et al. Wire Arc Additive Manufacturing using ER2594 Duplex Stainless Steel. Trans Indian Inst Met 76, 249–258 (2023). https://doi.org/10.1007/s12666-022-02746-8
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DOI: https://doi.org/10.1007/s12666-022-02746-8