Discontinuities in the porous anodic film formed on AA2099-T8 aluminium alloy

被引：82

作者：

Ma, Y. ^{[1
]}

Zhou, X. ^{[1
]}

Thompson, G. E. ^{[1
]}

Curioni, M. ^{[1
]}

Zhong, X. ^{[1
]}

Koroleva, E. ^{[1
]}

Skeldon, P. ^{[1
]}

Thomson, P. ^{[2
]}

Fowles, M. ^{[2
]}

机构：

[1] Univ Manchester, Ctr Corros & Protect, Sch Mat, Manchester M13 9PL, Lancs, England

[2] Airbus Operat Ltd, Chester CH4 0DR, Cheshire, England

来源：

CORROSION SCIENCE | 2011年 / 53卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

Aluminium; Lithium; Intermetallics; Anodic films; Oxidation; SULFURIC-ACID-SOLUTION; AL-CU ALLOYS; GRAIN-ORIENTATION; OXYGEN BUBBLES; OXIDE-GROWTH; CORROSION-RESISTANCE; ELECTRON-MICROSCOPY; PITTING CORROSION; COPPER ALLOYS; BEHAVIOR;

D O I：

10.1016/j.corsci.2011.08.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The anodizing behaviour of constituent particles (Al-Fe-Mn-Cu) and dispersoids (Al-Cu-Mn-Li and beta'(Al(3)Zr)) in AA2099-T8 has been investigated. Low-copper-containing Al-Fe-Mn-Cu particles anodized more slowly than the alloy matrix, forming a highly porous anodic oxide film. Medium- and high-copper-containing Al-Fe-Mn-Cu particles were rapidly dissolved, resulting in defects in the anodic film. The anodizing of Al-Cu-Mn-Li dispersoids is slightly slower than the alloy matrix, forming a less regular anodic oxide film. beta'(Al(3)Zr) dispersoids anodized at a similar rate to the alloy matrix. Further, the potential impact of the discontinuities in the resultant anodic films on the performance of the filmed alloy is discussed. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：4141 / 4151

页数：11

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