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Study on blister of the coating on solid cantilevers of hydraulic supports for coal mining

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Abstract

In this work, blister of the Cu-Sn plus Cr coating on solid cantilevers of hydraulic supports for coal mining was investigated by hydrogen-charging, Devanathan-Stachurski method and electrochemical impedance spectroscopy (EIS) measurement. It was found that the permeation hydrogen during the pickling process and the electroplating process was responsible for the blisters. The residual tensile stress due to the machining process would increase the permeation hydrogen amount during pickling and electroplating processes.

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Authors and Affiliations

  1. Corrosion and Protection Laboratory, Key Laboratory of Superlight Materials and Surface Technology (Harbin Engineering University), Ministry of Education, Harbin, 150001, China

    GuoZhe Meng, FeiLong Sun, YaWei Shao, Tao Zhang & FuHui Wang

  2. Technology Center of Zhengzhou Coal Mining Machinery Group Co. Ltd., Zhengzhou, 100049, China

    JinLiang Fu

  3. State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China

    FuHui Wang

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  1. GuoZhe Meng
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  2. JinLiang Fu
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  3. FeiLong Sun
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  4. YaWei Shao
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  5. Tao Zhang
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  6. FuHui Wang
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Correspondence to GuoZhe Meng.

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Meng, G., Fu, J., Sun, F. et al. Study on blister of the coating on solid cantilevers of hydraulic supports for coal mining. Sci. China Technol. Sci. 53, 3183–3188 (2010). https://doi.org/10.1007/s11431-010-4106-1

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  • DOI: https://doi.org/10.1007/s11431-010-4106-1

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