铝合金表面MXene/Zn-Al LDH涂层在干湿交变环境下的耐蚀性增强

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2025-06-05 DOI:10.1016/j.corsci.2025.113088

Baolong Gong, Xiaoqing Ma, Tiange Wang, Jiale Hou, Shuxian Ji, Xixun Shen, Yulin Min, Qunjie Xu, Huaijie Cao

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引用次数: 0

摘要

利用Ti3C2Tx MXene的强物理屏障和Zn-Al层双氢氧化物（LDH）的离子交换能力，在铝合金表面设计了MXene/LDH复合涂层，研究了MXene/LDH在干湿和温度交替环境中的腐蚀行为。结果表明，在3.5 wt% NaCl溶液中，经过30多个循环的交替试验，MXene复合涂层仍然具有较高的耐蚀性，腐蚀电流密度为4.86 × 10−8 a /cm2。同样，涂层在温度变化的环境下也表现出稳定的耐腐蚀性。这是由于交替循环过程中MXene的不渗透性和氧化性以及Zn-Al LDH对Cl-的吸附/捕获能力。

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Enhanced corrosion resistance of MXene/Zn-Al LDH coating on Al alloy under dry/humid and temperature alternating environments

Herein, with strong physical barrier of Ti₃C₂T_x MXene and ion-exchange ability of Zn-Al layer double hydroxide (LDH), MXene/LDH composite coating is designed on Al alloy to investigate the corrosion behaviors in dry/humid and temperature alternating environments. As a result, after alternating tests over 30 cycles, the MXene composite coating still possesses high corrosion resistance with a low corrosion current density of 4.86 × 10⁻⁸ A/cm² in 3.5 wt% NaCl solution. Similarly, the coating exhibits stable corrosion resistance under temperature alternating environments. It is attributed to the impermeability and oxidation of MXene as well as the Cl^- adsorption/trapping ability of Zn-Al LDH during the alternating cycles.

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来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.