Sun Weiqing*,Chen Wei,Wang Weiqi.Surface chemical plating and corrosion resistance of magnesium alloy building templates[J].Plating & Finishing,2024,(10):34-41.
镁合金建筑模板的表面化学镀与耐蚀性能
- Title:
- Surface chemical plating and corrosion resistance of magnesium alloy building templates
- Keywords:
- AZ91 magnesium alloy; building formwork; chemical plating; Sn-Zn composite film; corrosion resistance
- 分类号:
- TG174.4
- 文献标志码:
- A
- 摘要:
- 采用化学镀的方法在镁合金建筑模板表面分别制备了单一Sn膜、单一Zn膜和复合Sn-Zn膜，对比分析了pH、温度和膜层数对镁合金表面膜层显微形貌和电化学性能的影响。结果表明：对于单一膜，在pH值为6.0、温度为75 ℃时制备的单一Sn膜和在pH值为9.5、温度为75 ℃时制备的单一Zn膜都具有较好成膜质量；当膜层数为9时，复合Sn-Zn膜完全覆盖镁合金基体且膜层成膜质量较好。相较于镁合金基体，单一Sn膜、单一Zn膜、复合Sn-Zn膜的腐蚀电位都发生正向移动，腐蚀电流密度发生不同程度减小，复合Sn-Zn膜的腐蚀电位最正、腐蚀电流密度最小。在镁合金基体表面化学镀单一Sn膜、单一Zn膜、复合Sn-Zn膜都有助于提升镁合金的耐蚀性能，且复合Sn-Zn膜对基体的保护作用要优于单一Sn膜、单一Zn膜。
- Abstract:
- A single Sn film, single Zn film and a composite Sn-Zn film were prepared on the surface of magnesium alloy building formwork by electroless plating. The effects of pH, temperature and film number on the micromorphology and electrochemical properties of magnesium alloys were analyzed. The results showed that for a single film, both the single Sn film prepared at pH=6.0 and temperature of 75 ℃ and the single Zn film prepared at pH=9.5 and temperature of 75 ℃ had good film-forming quality; When the number of film layers was 9, the magnesium alloy matrix can be covered completely by Sn-Zn composite film and the quality of the film layer was good. Compared with the magnesium alloy matrix, the corrosion potential of the single Sn film, single Zn film, and the composite Sn-Zn film all showed a positive shift, and the corrosion current density decreased to varying degrees. The corrosion potential of composite Sn-Zn film was the most positive, and the corrosion current density was the smallest. Chemical plating of single Sn film, single Zn film, and composite Sn-Zn film on the surface of magnesium alloy substrate can improve the corrosion resistance of magnesium alloy, and the protective effect of composite Sn-Zn film on the substrate was better than that of single Sn film and single Zn film
参考文献/References:
[1].谭军, 王芳磊, 蒋斌, 等. 镁合金结构材料应用现状与展望[J]. 自然杂志, 2023, 45(2): 93-105.
[2].高峰. 铝及镁合金在建筑模板行业应用现状及展望[J]. 中国有色金属, 2022(4): 42-44.
[3].夏先朝, 潘玥, 袁杏, 等. 镁合金表面腐蚀防护技术研究进展[J]. 表面技术, 2023, 52(5): 37-50.
[4].赖心翘, 刘宁华, 易爱华, 等. 镁合金高耐蚀表面处理技术的研究进展[J]. 电镀与涂饰, 2024, 43(1): 87-97.
[5].吴畏, 陈腊梅, 张丹丹, 等. 镁锂合金微弧氧化的研究进展[J]. 电镀与精饰, 2023, 45(5): 71-79.
[6].刘坤, 邹忠利, 许满足, 等. AZ31B镁合金表面镨盐转化膜的制备及性能研究[J]. 电镀与精饰, 2023, 45(1): 39-45.
[7].殷强, 朱利敏, 王媛媛, 等. 硅酸盐体系中的钨酸钠含量对ZM5镁合金微弧氧化膜层的影响[J]. 环境技术, 2023, 41(11): 53-59.
[8].董丽惠, 王华, 李琳. AZ31B镁合金钒/硅烷复合转化膜的制备与表征[J]. 表面技术, 2024, 53(4): 34-45.
[9].万永壮, 戴诗行, 邵忠财. 镁合金钼酸盐转化膜的制备及改性研究[J]. 辽宁化工, 2023, 52(11): 1599-1601.
[10].Chen C T, Shi X T, Zhang S F, et al. Mutual impact of four organic calcium salts on the formation and properties of micro-arc oxidation coatings on AZ31B magnesium alloys[J]. Coatings, 2024, 14(1): 1401-1446.
[11].王润, 王忠军, 林茹, 等. LZ91合金板材微弧氧化复合膜层的腐蚀行为[J]. 特种铸造及有色合金, 2023, 43(12): 1693-1699.
[12].周凡, 李禹辰, 康珍玮, 等. 锂含量对镁锂合金表面碳酸锂膜层耐蚀性的影响[J]. 稀有金属材料与工程, 2023, 52(8): 2978-2984.
[13].Li H Z, Wang Y F, Geng J J, et al. The effect of yttrium nitrate content on the microstructure and properties of a micro-arc oxidation coating prepared on a ZK61M magnesium alloy[J]. Coatings, 2023, 14(1): 29-36.
[14].边昊, 梁军, 彭振军, 等. 电解液中添加钛纳米颗粒对AZ91D镁合金表面微弧氧化膜性能的影响研究[J]. 材料保护, 2023, 56(4): 1-9.
[15].王世颖, 康丰, 吴敏娴, 等. AZ31镁合金基Cu-MOF-SA超疏水膜的制备及其耐腐蚀性能研究[J]. 材料保护, 2024, 57(1): 148-155.
[16].韩帅, 卢艳青, 张新禹, 等. 硅酸钠浓度对ME21镁合金微弧氧化膜微观结构及耐蚀性的影响[J]. 电镀与涂饰, 2023, 42(8): 12-17.
[17].王占营, 马颖, 安守静, 等. 纯镁及AZ91D镁合金微弧氧化膜层耐蚀性的对比[J]. 兰州理工大学学报, 2023, 49(3): 1-8.
[18].Chen L X, Zhao R F, Qi H Y, et al. Influence of voltage modes on microstructure and corrosion resistance of micro-arc oxidation coating on magnesium alloy[J]. Journal of Adhesion Science and Technology, 2023, 37(15): 2232-2246.
[19].Lin S P, Nie Z R, Huang H, et al. Annealing behavior of a modified 5083 aluminum alloy[J]. Materials & Design, 2010, 31(3): 1607-1612.
[20].罗兰, 彭振军, 周健松, 等. NH4F浓度对镁合金表面微弧氧化制备氟化物膜层结构和性能的影响[J]. 表面技术, 2023, 52(6): 70-79.
[21].付广艳, 翟召鑫, 任雷, 等. 聚天冬氨酸对AZ91D镁合金阳极氧化膜性能的影响[J]. 电镀与精饰, 2023, 45(4): 26-30.
[22].王浩伟, 朱培, 殷强, 等. 微弧氧化溶液pH值对ZM5膜层性能研究[J]. 装备环境工程, 2023, 20(12): 142-148.