Cerium tartrate as a corrosion inhibitor for AA 2024-T3

被引：111

作者：

Hu, Tianhui ^{[1
,2
,3
]}

Shi, Hongwei ^{[1
]}

Wei, Tao ^{[1
]}

Liu, Fuchun ^{[1
]}

Fan, Shihua ^{[2
]}

Han, En-Hou ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China

[2] Northeastern Univ, Dept Chem, Shenyang 110019, Peoples R China

[3] Shenyang Univ, Shenyang 110044, Peoples R China

来源：

CORROSION SCIENCE | 2015年 / 95卷

关键词：

Alloy; AFM; EIS; XPS; Neutral inhibition; ENVIRONMENTALLY BENIGN INHIBITOR; HYDROXY CARBOXYLIC-ACIDS; ALUMINUM-ALLOY; LOCALIZED CORROSION; PITTING CORROSION; AMINO-ACIDS; AA2024-T3; PROTECTION; COATINGS; PHASE;

D O I：

10.1016/j.corsci.2015.03.010

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

A new corrosion inhibitor, cerium tartrate, was synthetized. The inhibition behavior of cerium tartrate for 2024-T3 aluminum alloy was investigated in 0.05 M NaCl solution. The immersion tests indicate that the corrosion of Al2CuMg phase was well inhibited. The electrochemical results show that both anodic and cathodic inhibitions are present during the corrosion process. The surface characterizations reveal that the protective film of cerium tartrate inhibits the dealloying of Al2CuMg phase in the initial stage, and then cerium ions transform to cerium oxide/ hydroxides and appear at the Al2CuMg phase, blocking the further corrosion at those corrosion sites. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：152 / 161

页数：10

共 42 条

[1]

Electrochemical noise applied to the study of the inhibition effect of CeCl3 on the corrosion behaviour of Al-Mg alloy AA5083 in seawater [J].