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| Effects of Applied Cathodic Potential on Susceptibility to Hydrogen Embrittlement and Mechanical Properties of Q235 Steel |
| WEN Lijuan, GAO Zhiming, LIU Yangyang, LIN Feng |
| School of Materials Science and Engineering, Tianjin Key Laboratory of Composite & Functional Material, Tianjin University, Tianjin 300072, China |
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Abstract The hydrogen permeation characteristics of Q235 steel under different applied cathodic protection potential in 3.5%NaCl solution were investigated by using electrochemical, tensile and micro-hardness test. The fracture morphology was observed by scanning electron microscopy (SEM). When the cathodic potential shifted to the negative direction, there was no correlation between maximal tensile strength, yield strength, and hydrogen embrittlement, but the reduction of area decreased. When the polarization potential was -1100 mV, the micro-hardness increased significantly and the fracture morphology exhibited brittle fracture feature.
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Cite this article:
WEN Lijuan,GAO Zhiming,LIU Yangyang,LIN Feng. Effects of Applied Cathodic Potential on Susceptibility to Hydrogen Embrittlement and Mechanical Properties of Q235 Steel. Journal of Chinese Society for Corrosion and protection, 2013, 33(4): 271-276.
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2013/V33/I4/271
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