Study of the corrosion layer on iron obtained in solutions of water-polyethylene glycol (PEG 400)-sodium phosphate

被引：9
|
作者：
Gourbeyre, Y [1 ]
Guilminot, E [1 ]
Dalard, F [1 ]
机构：
[1] INPG, CNRS, UMR 5631, Lab Electrochim & Physicochim Mat & Interfaces, St Martin Dheres, France
来源：
JOURNAL OF MATERIALS SCIENCE | 2003年 / 38卷 / 06期
关键词：
D O I：
10.1023/A:1022803014898
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The iron behaviour in phosphate/water/polyethylene glycol (PEG) was studied in-situ and ex-situ by spectrometry Raman, ESCA spectroscopy, X-ray diffraction, Auger spectroscopy were used as surface analysis methods. It changes with phosphate concentration. At low phosphate concentration (5 x 10(-4) M-10(-3) M-5 x 10(-3) M), iron is corroded. The thin corrosion layer is a mixture of iron oxides (gamma-Fe2O3, Fe3O4) and iron phosphate( Fe-3(PO4)(2), 8H(2)O). At high phosphate concentration (10(-2) M-5 x 10(-2) M), the iron is protected. The protection could be due to an heterogenous layer containing PEG 400 and phosphates. (C) 2003 Kluwer Academic Publishers.
引用
收藏
页码：1307 / 1313
页数：7
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