Abstract The Agaricus bisporus was tested as an eco-friendly corrosion inhibitor for mild steel (MS) in 5 M HCl at room temperature. Different electrochemical and surface characterization techniques were used. SEM, metallurgical imaging, and Langmuir adsorption isotherm studies confirmed the adsorption of A. bisporus on MS surface supported by an increase in Warburg impedance (Zw), capacitive loop and Faradaic current (IF). The negative value of ΔG∗ads, i.e., -15.76 kJ/mol proves physisorption of A. bisporus on MS. Bode phase angle curve of A. bisporus depicts one relaxation agreeing to semi-circle in Nyquist module. The correlation coefficient (R2) was found to be 0.9973. A. bisporus shows 98.9 percent corrosion inhibition efficiency (PCIE). No pits and cracks were visible on the surface of MS coupons in the presence of A. bisporus.

中文翻译：

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5.0 M HCl 中低碳钢的高效环保缓蚀剂：一种抗点蚀和抗裂剂

摘要 在室温下在 5 M HCl 中测试双孢蘑菇作为低碳钢 (MS) 的环保缓蚀剂。使用了不同的电化学和表面表征技术。SEM、冶金成像和朗缪尔吸附等温线研究证实了双孢蘑菇在 MS 表面的吸附，这受到 Warburg 阻抗 (Zw)、电容环和法拉第电流 (IF) 的增加的支持。ΔG∗ads 的负值，即 -15.76 kJ/mol 证明了双孢蘑菇在 MS 上的物理吸附。双孢蘑菇的波特相角曲线描绘了一种符合奈奎斯特模数半圆的弛豫。发现相关系数 (R2) 为 0.9973。A. 双孢菌显示 98.9% 的腐蚀抑制效率 (PCIE)。在双孢蘑菇存在的情况下，MS 试样的表面上看不到凹坑和裂纹。