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Microstructure, mechanical, and corrosion resistance of copper nickel alloy fabricated by wire-arc additive manufacturing

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Abstract

Copper–nickel alloys were obtained by wire-arc additive manufacturing (WAAM) and thoroughly analyzed spectro- and microscopically. Mechanical (microhardness, tensile, and impact strength) and corrosion resistance properties were also tested. The Cu–Ni alloy samples were very uniform, with minimum defects, and contained large crystals and single-phase solid solution. The microhardness distribution in the transverse and longitudinal directions was uniform. The regular and breakdown corrosion potentials of the Cu–Ni alloy fabricated by WAAM were equal to − 211 and 17 mV, respectively, while the resistance was 7.6 Ω cm2. The Cu–Ni alloys produced by WAAM are excellent compared to conventionally manufactured.

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Acknowledgments

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 University 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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Authors and Affiliations

  1. College of Mechanical Engineering, Anhui Science and Technology University, Bengbu, 233000, China

    Chun Guo, Taiyu Kang, Meng Ying & Feng Chen

  2. College of Mechanical Engineering, Anhui Polytechnic University, Wuhu, 241000, China

    Suisong Wu & Wu Meng Liu

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  1. Chun Guo
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Correspondence to Taiyu Kang.

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Guo, C., Kang, T., Wu, S. et al. Microstructure, mechanical, and corrosion resistance of copper nickel alloy fabricated by wire-arc additive manufacturing. MRS Communications 11, 910–916 (2021). https://doi.org/10.1557/s43579-021-00120-1

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