合金表面能自然形成一层薄的氧化膜.pdf

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腐蚀科学与防护技术
第 14 卷第 3 期 Vol 14 No 3
2002 年 5 月 CORROSION SCIENCE AND PROTECTION TECHNOLOGY May 2002
Al 合金点腐蚀及研究方法
邵敏华林昌健
( 固体表面物理化学国家重点实验室厦门大学化学系材料科学与工程系厦门 361005)
摘要综述近年来国内外有关 Al 合金点腐蚀的研究概况. 包括特征电位的研究、点腐蚀发生发展机理的研究和缓
蚀剂缓蚀机理研究等. 侧重介绍近几年在 Al 合金点腐蚀研究中具有空间分辨度的原位研究技术.
关键词 Al 合金点蚀电化学方法缓蚀剂原位技术
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中图分类号 TG174 2 文献标识码 A 文章编号 1002 6495 (2002) 03 0147 05
A REVIEW OF INVESTIGATION ON
PITTING CORROSION OF AL UMINUM ALLOY
SHAO Minhua ,L IN Changjian
( S tate Key L aboratory f or Physical Chemistry of Solid S urf aces , Department of Chemistry ,
Department of M aterials Science and Engineering , Xiamen U niversity , Xiamen 361005)
ABSTRACT Pitting corrosion of aluminum alloy is plex but important problem. This paper pro
vides a review of the recent investigation of pitting corrosion of aluminum alloy. Characteristic poten
tials ,mechanisms of the pitting initiation ,protective mechanisms of inhibitors are included in this pa
per. In addition ,some in situ imaging electrochemical techniques are discussed. These in situ methods
include electrochemical scanning tunneling microscopy ( ECSTM) ,atomic force microscopy (AFM) ,
scanning Kelvin probe force microscopy ( SKPFM) ,scanning microelectrode technique ( SMET) and
some other techniques.
KEY WORDS aluminum alloy ,pitting corrosion ,electrochemical methods ,inhibito