2時，SH涂層表面呈現(xiàn)均勻的微納米結(jié)構(gòu)，并表現(xiàn)出超疏水性。超疏水涂層的腐蝕電流密度（Icorr=9×10-7 A·cm-2）比ZK60基體的腐蝕電流密度（Icorr=3×10-5 A·cm-2）低了2個數(shù)量級，表現(xiàn)出優(yōu)異的耐腐蝕性。"/>

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電流密度對ZK60鎂合金表面超疏水涂層的制備及耐腐蝕性的影響
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作者單位:

1.南京工程學(xué)院 材料科學(xué)與工程學(xué)院，江蘇 南京 211167;2.南京工程學(xué)院 江蘇省先進(jìn)結(jié)構(gòu)材料與應(yīng)用技術(shù)重點實驗室，江蘇 南京 211167;3.東南大學(xué) 材料科學(xué)與工程學(xué)院，江蘇 南京 211189

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基金項目:

National Natural Science Foundation of China (51701093); Qing Lan Project of Jiangsu Province of China


Influence of Working Current Density on Formation and Corrosion Resistance of Super-Hydrophobic Coating on ZK60 Magnesium Alloy
Author:
Affiliation:

1.School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing 211167, China;2.Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology, Nanjing Institute of Technology, Nanjing 211167, China;3.School of Materials Science and Engineering, Southeast University, Nanjing 211189, China

Fund Project:

National Natural Science Foundation of China (51701093); Qing Lan Project of Jiangsu Province of China

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    摘要:

    為了提高鎂合金的耐腐蝕性能，基于層狀雙氫氧化物（LDHs）膜在ZK60鎂合金表面制備了超疏水（SH）涂層。涂層制備過程中引入電場輔助，研究了工作電流密度對涂層性能的影響。結(jié)果表明，工作電流密度顯著影響LDHs膜的微觀結(jié)構(gòu)，這對SH涂層的疏水性具有重要影響。當(dāng)工作電流密度為25 mA/cm2時，SH涂層表面呈現(xiàn)均勻的微納米結(jié)構(gòu)，并表現(xiàn)出超疏水性。超疏水涂層的腐蝕電流密度（Icorr=9×10-7 A·cm-2）比ZK60基體的腐蝕電流密度（Icorr=3×10-5 A·cm-2）低了2個數(shù)量級，表現(xiàn)出優(yōu)異的耐腐蝕性。

    Abstract:

    To improve the corrosion resistance of magnesium alloys, super-hydrophobic (SH) coating was fabricated on the surface of ZK60 magnesium alloy coated with layered double hydroxides (LDHs) film. The electric field was introduced in the coating preparation process, and the influences of working current density on the characteristics of the coatings were researched. The results indicate that the working current densities significantly affect the microstructure of the LDHs films, which has an important impact on the hydrophobicity of the SH coatings. When the working current density is 25 mA/cm2, the SH coating presents a homogenous micro-nano structure and super-hydrophobicity. The corrosion current density of the SH coating (Icorr =9×10-7 A·cm-2) is two orders of magnitude lower than that of the ZK60 substrate (Icorr =3×10-5 A·cm-2), indicating excellent corrosion resistance.

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巴志新,匡娟,丁玉萍,趙斐,張玲玲,汪永民.電流密度對ZK60鎂合金表面超疏水涂層的制備及耐腐蝕性的影響[J].稀有金屬材料與工程,2022,51(6):1942~1948.[Ba Zhixin, Kuang Juan, Ding Yuping, Zhao Fei, Zhang Lingling, Wang Yongmin. Influence of Working Current Density on Formation and Corrosion Resistance of Super-Hydrophobic Coating on ZK60 Magnesium Alloy[J]. Rare Metal Materials and Engineering,2022,51(6):1942~1948.]
DOI：10.12442/j. issn.1002-185X.20210370

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  • 收稿日期:2021-04-26
  • 最后修改日期:2021-08-28
  • 錄用日期:2021-09-01
  • 在線發(fā)布日期: 2022-06-29
  • 出版日期: 2022-06-29