[1]王玲玲,张元华,张 涛,等.doi: 10.3969/j.issn.1001-3849.2025.09.007组合促进剂对45#钢表面磷化膜性能的影响[J].电镀与精饰,2025,(09):46-53.
　Wang Lingling*,Zhang Yuanhua,Zhang Tao,et al.Effect of combination accelerator on properties of phosphating film on 45# steel[J].Plating & Finishing,2025,(09):46-53.
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doi: 10.3969/j.issn.1001-3849.2025.09.007组合促进剂对45#钢表面磷化膜性能的影响()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2025年09
页码:
46-53
栏目:
出版日期:
2025-09-30

文章信息/Info

Title:
Effect of combination accelerator on properties of phosphating film on 45# steel
作者:
王玲玲1; 2; 张元华1; 2; 张 涛2; 王 倩3
(1. 邢台市绿色数字化精密铸造技术创新中心,河北 邢台 054000 ;2. 河北机电职业技术学院 材料与建筑工程系,河北 邢台 054000 ;3. 河北科技大学 材料科学与工程学院,河北 石家庄 050018)
Author(s):
Wang Lingling1; 2*;  Zhang Yuanhua1; 2;  Zhang Tao2;  Wang Qian3
(1. Xingtai Green Digital Precision Casting Technology Innovation Center, Xingtai 054000, China; 2. Department of Materials and Architectural Engineering, Hebei Institute of Mechanical and Electrical Technology, Xingtai 054000, China; 3. School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China)
关键词:
磷化膜; 组合促进剂; 柠檬酸; 纳米TiO2颗粒; 耐蚀性
Keywords:
phosphating film;  combination accelerator;  citric acid;  TiO2 nano-particles;  corrosion resistance
分类号:
TQ153
文献标志码:
A
摘要:
选用无毒环保的柠檬酸与纳米TiO2颗粒作为组合促进剂添加到磷化液中，在45#钢表面制备磷化膜，并研究组合促进剂对磷化膜的形貌特征、物相结构、厚度、润湿性以及耐蚀性的影响。结果表明：柠檬酸与纳米TiO2颗粒作为组合促进剂制备的磷化膜完全覆盖基体，其厚度达到17.2 μm，并且表面呈疏水性。该磷化膜的致密性好于不添加促进剂制备的磷化膜以及仅添加柠檬酸或纳米TiO2颗粒制备的磷化膜，并且表现出良好的耐蚀性，其腐蚀电流密度仅为1.85×10?6 A/cm 2，耐硫酸铜腐蚀时间达到105 s。柠檬酸与纳米TiO2颗粒作为组合促进剂既能增加基体上成核点位使磷酸盐晶体形成速度加快，又能减少结晶缺陷，促进形成较厚且致密的磷化膜，能有效阻隔腐蚀介质并延缓腐蚀发展，因而具有良好的耐蚀性和防护效果。
Abstract:
A phosphating film was prepared on 45# steel in the phosphating solution containing non-toxic citric acid and nano-TiO 2 particles as composite accelerator, and the effect of composite accelerator on the morphological characteristics, phase structure, thickness, wettability and corrosion resistance of the phosphating film was studied. The results show that the phosphating film prepared with composite accelerator completely covers the substrate, with a thickness of 17.2 μm and exhibits hydrophobicity. The phosphating film displays superior compactness compared to those prepared without accelerator or with citric acid/nano-TiO 2 particles alone. Furthermore, it exhibits excellent corrosion resistance, with a corrosion current density as low as 1.85×10 ?6 A/cm? and a copper sulfate corrosion resistance time reaching 105 s. The combined use of citric acid and nano-TiO2 particles as composite accelerator enhances nucleation sites on the substrate, accelerating the formation of phosphate crystals while reducing crystalline defects. This promotes the development of a thicker and denser phosphating film, effectively blocking corrosive media and delaying corrosion progression. Consequently, the phosphating film achieves exceptional corrosion resistance and protective performance.

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更新日期/Last Update: 2025-09-11