Water-based acrylic copolymer as an environment-friendly corrosion inhibitor onto carbon steel in 1 M H2SO4 in static and dynamic conditions

Journal of Materials Science: Materials in Engineering

Table 7 Electrochemical potential polarization parameters for mild steel corrosion in the absence and presence of optimum concentration of inhibitor at different rotation speeds

Rotation speed (rpm)	Concentration (ppm)	E_corr(mV vs. SCE)	I_corr(mAcm⁻²)	β_C(mV/dec)	β_a(mV/dec)	θ	η(%)
500	Blank	−450	3.65	123	104	0.33	33
500	600	−480	2.43	143	137	0.33	33
1,000	Blank	−451	3.61	120	105	0.72	72
1,000	600	−493	1.01	156	121	0.72	72
1,500	blank	−458	3.24	120	107	0.84	84
1,500	600	−481	0.512	125	78	0.84	84
2,000	blank	−453	2.92	119	103	0.15	15
2,000	600	−456	2.48	142	105	0.15	15