在酸性介质中脐橙皮提取物对不锈钢的缓蚀作用

周坤, 柳鑫华, 刘帅

Corrosion Inhibition of Navel Orange Peel Extract to Stainless Steel in Acidic Medium

ZHOU Kun, LIU Xinhua, LIU Shuai

表4 316L钢在0.5 mol/L HCl溶液中加入和不加入不同浓度的NOPE时的动态电位极化和线极化数据

Table 4 Potentiodynamic polarization and linear polarization data of 316L steel in 0.5 mol/L HCl solutions with different concentrations of NOPE

C_inh / mg·L^-1	E_corr / mV	I_corr / mA·cm^-2	β_a / mV·dec^-1	β_c / mV·dec^-1	η_PDP / %	R_p / Ω·cm²	η_LPR / %
0	-871	0.44	146	123	-	42.70	-
30	-850	0.21	68.5	107	51.36	93.26	54.21
50	-841	0.18	64.5	122	58.86	115.55	63.04
100	-836	0.10	49.8	107	76.57	159.51	73.23
200	-826	0.09	46.7	114	79.43	180.86	76.39
300	-818	0.06	36.5	114	85.25	224.82	81.01
500	-808	0.05	32.8	121	88.82	335.98	87.29