In-situ intercalation of 8-hydroxyquinoline in Mg-Al LDH coating to improve the corrosion resistance of AZ31

被引：179

作者：

Anjum, Muhammad Junaid ^{[1
]}

Zhao, Jingmao ^{[1
,2
]}

Asl, Vahdat Zahedi ^{[1
]}

Yasin, Ghulam ^{[1
]}

Wang, Wei ^{[1
]}

Wei, Shixiong ^{[1
]}

Zhao, Zhijie ^{[1
]}

Khan, Waheed Qamar ^{[3
]}

机构：

[1] Beijing Univ Chem Technol, Coll Mat Sci & Engn, Beijing 100029, Peoples R China

[2] Beijing Key Lab Electrochem Proc & Technol Mat, Beijing 100029, Peoples R China

[3] Bahauddin Zakariya Univ, Inst Adv Mat, Multan 60800, Pakistan

来源：

CORROSION SCIENCE | 2019年 / 157卷

基金：

中国国家自然科学基金;

关键词：

Magnesium; 8-hydroxyquinoline; XPS; Polarization; Green inhibitor; Layered double hydroxide coating; LAYERED DOUBLE HYDROXIDE; MAGNESIUM ALLOY; CONVERSION COATINGS; PROTECTION; BEHAVIOR; NANOCOMPOSITE; FABRICATION; INHIBITION; EFFICIENT; NANOCONTAINER;

D O I：

10.1016/j.corsci.2019.05.022

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

Mg-Al based layered double hydroxide (LDH) coating intercalated with 8-hydroxyquinoline (8HQ) was successfully prepared on AZ31. The influence of concentrations of 8HQ on the morphology and corrosion resistance is reported first time. X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectra confirm the intercalation of 8HQ. Furthermore, scanning electron microscopy (SEM) reveals concentration dependence of morphology of LDH. The enhancement in corrosion resistance is a function of morphological change, adsorption of 8HQ and chelation with Mg2+. The optimum amount of 8HQ enhances corrosion resistance of LDH coating. The deductions of this study deliver valuable understandings of corrosion protection mechanism of Mg-Al-LDH coatings.

引用

页码：1 / 10

页数：10

共 70 条

[1]

Protective coating for magnesium alloy [J].