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Hydrogen Embrittlement Behavior on Microalloyed Pipeline Steel in NS-4 Solution

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Figure

Figure 1.  Microalloyed Pipeline Steel Plate Microstructure. a) Optical and b) SEM microphotographies
Figure 2.  Electrochemical corrosion steel behavior in NS-4 test solution, (a)polarization curves and (b)  EIS Nyquist plot
Figure 3.  Microalloyed steel slow and fast sweep rates under NS-4 solution
Figure 4.  (if-is)/is values from the slow and fast sweep rates related to different polarization curves potentials
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