Corrosion of Al-Sn-Bi alloys in alcohols at high temperatures. Part II: Effect of anodizing on corrosion

被引：18

作者：

Kikuchi, Tatsuya ^{[1
]}

Hara, Yasuhito ^{[1
]}

Sakairi, Masatoshi ^{[1
]}

Yonezawa, Tetsu ^{[1
]}

Yamauchi, Akira ^{[2
]}

Takahashi, Hideaki ^{[3
]}

机构：

[1] Hokkaido Univ, Grad Sch Engn, Kita Ku, Sapporo, Hokkaido 0608628, Japan

[2] Hokkaido Univ, Ctr Adv Res Energy Convers Mat, Kita Ku, Sapporo, Hokkaido 0608628, Japan

[3] Asahikawa Natl Coll Technol, Asahikawa, Hokkaido 0718142, Japan

来源：

CORROSION SCIENCE | 2010年 / 52卷 / 08期

关键词：

Aluminum; SEM; Hot corrosion;

D O I：

10.1016/j.corsci.2010.04.031

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

Nine kinds of Al alloys were anodized to form porous anodic oxide films, and then anodized specimens were immersed in 2-(2-(2-methoxyethoxy)ethoxy)ethanol (MEEE) and 2-(2-(2-butoxyethoxy)ethoxy)ethanol (BEEE) at 415 K. Al-1.0%Sn-1.0%Bi alloy was corroded severely in both BEEE and MEEE, whereas other eight alloys showed no corrosion. The corrosion proceeded under the anodic oxide films through cracks formed in the film. Cathodic polarization in Cu electroplating solution after corrosion suggested that the crack formation during immersion in hot MEEE is due to thermal expansion of the substrate and Sn and Bi containing particles included in the anodic oxide film. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2525 / 2534

页数：10

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