Pitting corrosion behaviour study of aluminium matrix composites (A3xx.x/SiCp)

被引：1
|
作者：
Pardo, A [1 ]
Merino, MC
Merino, S
López, MD
Viejo, E
Carboneras, M
Arrabal, R
机构：
[1] Univ Complutense, Fac Quim, Dept Ciencia Mat, E-28040 Madrid, Spain
[2] Univ Alfonso X El Sabio, Dept Tecnol Ind, Madrid 28691, Spain
[3] Univ Rey Juan Carlos, Escuela Super Ciencias Expt & Tecnol, Madrid 28931, Spain
来源：
REVISTA DE METALURGIA | 2004年 / 40卷 / 05期
关键词：
pitting corrosion; composites corrosion; generalised corrosion; composite materials Al/SiCp;
D O I：
10.3989/revmetalm.2004.v40.i5.285
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The influence of the SiCp proportion on the pitting corrosion of A3xx.x/SiC/xxp composites was Studied by means of potenciodinamic polarization and double cyclic polarization in saline environment at 25 degreesC. A360/SiC/xxp matrix does not contain copper, whereas the A380/SiC/xxp matrix contains 1,39-1,44w %Ni and 3,13-3,45wt %Cu. The kinetic study was carried out by gravimetric measurements. The nature of corrosion products was analysed by low angle XRD and Scanning Electron Microscopy (SEM). The corrosion is due to nucleation and growth of Al2O3.3H(2)O on the material surface. The corrosion increases with the reinforcement proportion, chloride concentration and copper content.
引用
收藏
页码：341 / 346
页数：6
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