电泳沉积在 NaF-AlF3 熔体中的 TiB2 涂层在液态锌中的抗腐蚀性能

IF 2.9 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Coatings Pub Date : 2024-08-12 DOI:10.3390/coatings14081021

Tao Jiang, Junjie Xu, Chuntao Ge, Jie Pang, Jun Zhang, Geir Martin Haarberg, Saijun Xiao

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引用次数: 0

摘要

熔盐电泳沉积是近年来兴起的一种制备过渡金属硼化物（如 TiB2）涂层的新方法。为了扩大这种方法制备的过渡金属硼化物涂层的应用范围，本文研究了通过熔盐电泳沉积制备的 TiB2 涂层对液态锌的耐腐蚀性。通过在熔融 NaF-AlF3 中施加 1.2 V 的电池电压（对应于 0.6 V/cm 的电场）1 小时，纳米级 TiB2 粒子迁移到阴极并沉积在石墨基底上，形成厚度为 43 μm 的光滑致密的 TiB2 涂层。随后，将涂有 TiB2 的石墨在熔融锌中连续浸泡 120 小时，进行耐腐蚀测试，结果表明表面和涂层内部均未出现裂纹。生产出的 TiB2 涂层具有极佳的耐腐蚀性。这些研究结果表明，通过熔盐电泳沉积法在石墨基底上形成的完全致密的 TiB2 涂层具有极佳的耐液态锌腐蚀性能。

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Electrophoretically Deposited TiB2 Coatings in NaF-AlF3 Melt for Corrosion Resistance in Liquid Zinc

Molten salt electrophoretic deposition is a novel method for preparing coatings of transition metal borides such as TiB2, which has emerged in recent years. To broaden the applications of transition metal boride coatings prepared by this method, this paper investigates the corrosion resistance of TiB2 coatings, produced through molten salt electrophoretic deposition, to liquid zinc. By applying a cell voltage of 1.2 V (corresponding to an electric field of 0.6 V/cm) for 1 h in molten NaF-AlF3, the nanoscale TiB2 particles migrated to the cathode and were deposited on the graphite substrate, forming a smooth and dense TiB2 coating with a thickness of 43 μm. Subsequently, after subjecting the TiB2-coated graphite to corrosion resistance tested in molten zinc for 120 h of continuous immersion, no cracks were observed on the surface or within the coating. The produced TiB2 coating demonstrated excellent corrosion resistance. These research results suggest that the fully dense TiB2 coating on the graphite substrate, produced through molten salt electrophoretic deposition, exhibits excellent corrosion resistance to liquid zinc.

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来源期刊

Coatings Materials Science-Surfaces, Coatings and Films

CiteScore

5.00

自引率

11.80%

发文量

1657

审稿时长

1.4 months

期刊介绍： Coatings is an international, peer-reviewed open access journal of coatings and surface engineering. It publishes reviews, research articles, communications and technical notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. Full experimental and/or methodical details must be provided. There are, in addition, unique features of this journal: * manuscripts regarding research proposals and research ideas will be particularly welcomed * electronic files or software regarding the full details of the calculation and experimental procedure - if unable to be published in a normal way - can be deposited as supplementary material