[1]刘 刚,余朝文,武冰冰,等.doi: 10.3969/j.issn.1001-3849.2025.02.006荷叶提取物对Q235钢耐蚀性能影响的研究[J].电镀与精饰,2025,(02):38-45.
　Liu Gang*,Yu Chaowen,Wu Bingbing,et al.Effect of lotus leaf extract on the corrosion resistance of Q235 steel[J].Plating & Finishing,2025,(02):38-45.
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doi: 10.3969/j.issn.1001-3849.2025.02.006荷叶提取物对Q235钢耐蚀性能影响的研究()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2025年02
页码:
38-45
栏目:
出版日期:
2025-02-28

文章信息/Info

Title:
Effect of lotus leaf extract on the corrosion resistance of Q235 steel
作者:
刘 刚1; 2; 余朝文1; 2; 武冰冰1; 2; 张 玺1; 2; 解 芳1; 2*
(1. 南阳理工学院 河南省增材制造航空材料工程研究中心,河南 南阳 473004 ;2. 南阳理工学院 南阳市增材制造技术与装备重点试验室,河南 南阳 473004 )
Author(s):
Liu Gang1; 2*;  Yu Chaowen1; 2;  Wu Bingbing1; 2;  Zhang Xi1; 2;  Xie Fang1; 2*
(1. Engineering Research Center of Additive Manufacturing Aeronautical Materials of Henan Province, Nanyang Institute of Technology, Nanyang 473004, China; 2. Nangyang Key Laboratory of Additive Manufacturing Technology and Equipment, Nanyang Institute of Technology, Nanyang 473004, China)
关键词:
荷叶提取物; Q235钢; 电化学测试; 植物缓蚀剂
Keywords:
lotus leaf extract;  Q235 steel;  electrochemical test;  plant corrosion inhibitor
分类号:
TG178
文献标志码:
A
摘要:
为了探究荷叶提取物在3.5 wt.%NaCl溶液中对Q235钢缓蚀性能的影响，本实验通过采用控制单一变量得出最佳工艺参数，并采用润湿角测试仪、金相显微镜和激光共聚焦显微镜对所形成的膜层进行了表征，利用失重法、电化学等分析测定荷叶提取物的缓蚀效率。结果表明：荷叶提取物可以在Q235钢表面吸附成膜，并且随着缓蚀剂浓度、浸泡时间、处理温度的增大，缓蚀效率呈现先增大后减小的趋势，且在最佳工艺参数(0.6 g/L、6 h、30 ℃)下，腐蚀电流密度最小为8.36×10–6 A·cm –2，电荷转移电阻最大为708 Ω·cm2，此时缓蚀效率高达98.25%。因此荷叶提取物可以有效抑制Q235钢在3.5 wt.%NaCl溶液中的腐蚀行为，有望成为一种环境友好的缓蚀剂。
Abstract:
In order to explore the influence of lotus leaf extract on the corrosion inhibition performance of Q235 steel in 3.5 wt.%NaCl solution, the optimal process parameters were obtained by using a single control variable. The film was characterized by wetting Angle tester, metallographic microscope and laser confocal microscope, and the corrosion inhibition efficiency of lotus leaf extract was determined by weight loss method and electrochemical analysis. The experimental results show that lotus leaf extract can be adsorbed on the surface of Q235 steel to form a film, and with the increase of corrosion inhibitor concentration, soaking time and treatment temperature, the corrosion inhibition efficiency increases first and then decreases. Under the optimal process parameters (0.6 g/L, 6 h, 30 ℃), the minimum corrosion current density is 8.36×10–6 A·cm –2. The maximum charge transfer resistance is 708 Ω·cm2, and the corrosion inhibition efficiency is up to 98.25%. Therefore, lotus leaf extract can effectively inhibit the corrosion behavior of Q235 steel in 3.5 wt.%NaCl solution, and is expected to become an environmentally friendly corrosion inhibitor

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更新日期/Last Update: 2025-02-19