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 spectroscop...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.展开更多
基金supported by Zhengzhou Coal Mining Machinery Group Co.LTD(Grant No.ZhengMeiJi 2008Ke-12)the National Natural Science Foundation of China(Grant No.50971050)the Fundamental Research Funds for the Central Universities(Grant No.HEUCF101005)
文摘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.
