Abstract：In order to explore the relationship between the microzone potential difference of TiN, Ti (C,N), MnS precipitates and the anti-scaling property of enamel steel, three kinds of enamel steel plates with different compositions were selected. The relationship between the microzone potential difference of precipitated phases and the anti-scaling property of the steel plate was studied by scanning electron microscope (SEM), transmission electron microscope (TEM), atomic force microscope (AFM) and electrochemical hydrogen permeation test (EHP). It was found that the potential differences of different precipitated phases in the enamel steel plate were different. With the increase of the potential of irreversible trap precipitated phases, the effective diffusion coefficient of steel plate decreased and the anti-scaling ability increased. Among them, the micropotential difference of the micro-area containing MnS precipitates was the largest and had the best hydrogen capture ability. The potential difference of carbonitride precipitates of Ti was smaller and the hydrogen storage ability was relatively weak.
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2021, Vol. 31 
