Fabrication of Anticorrosion Dual-Component Silane Film on AZ31 Mg Alloy Surface by Self-assembly Method

Wang, Ying; Gu, Zhengpeng; Yuan, Ningyi; Pu, Jibin; Ding, Jianning

doi:10.1007/s11837-019-03864-3

Cited by 4 publications

(2 citation statements)

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“…The change rule of R ct was consistent with that of capacitance arc diameter. 27 Therefore, the dual-component silane films with the largest alkyl chain showed the strongest corrosion resistance. T A B L E 4 Fitting results of impedance spectra for the corrosion of dual-component silane film…”

Section: Characterizationmentioning

confidence: 99%

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Effect of chain length on the anticorrosion property of bis[3‐(triethoxysilyl)propyl]tetrasulfide/trimethoxysilane dual‐component silane film on the AZ31B Mg alloy surface

Wang

Yin

Tang

et al. 2021

Surface & Interface Analysis

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In this paper, the dual-component silane films composed of trimethoxysilane and bis [3-(triethoxysilyl)propyl]tetrasulfide (BTESPT) were prepared on the surface of AZ31B Mg alloys. The selected trimethoxysilanes had different chain length. The results showed that the dual-component silane films could effectively enhance the corrosion resistance of Mg alloys. Moreover, with the enlarging of the chain length of trimethoxysilane, the hydrophobic property and the corrosion resistance of the dual-component silane films were enhanced. And the dual-component silane film composed of BTESPT and octadecyltrimethoxysilane (OTMS) showed the highest contact angle and the best corrosion resistance. It could be ascribed to the high density of CH 2 groups and -S-S-S-Sin the dual-component silane film, greatly improving the hydrophobicity and the anticorrosion property. Simultaneously, the substantial Si-O-Si network in the dual-component silane film also enlarged the length of the penetration paths for corrosive media, delaying the corrosion of the Mg alloy.

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Section: Characterizationmentioning

confidence: 99%

“…The test results showed that the film composed of APS, and BTESPT could protect Mg alloys for a long time. 27 In this work, the dual-component silane films were prepared on AZ31B Mg alloys. BTESPT was selected to mix with trimethoxysilane.…”

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confidence: 99%