Influence of Cr additions on corrosion resistance of Fe- and Co-based metallic glasses and nanocrystals in H2SO4

被引：33

作者：

Pardo, A. ^{[1
]}

Merino, M. C.

Otero, E.

Lopez, M. D.

M'hich, A.

机构：

[1] Univ Complutense Madrid, Fac Quim, Dept Ciencia Mat, E-28040 Madrid, Spain

[2] Univ Rey Juan Carlos, Escuela Super Ciencias Expt & Tecnol, Madrid 28931, Spain

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2006年 / 352卷 / 30-31期

关键词：

amorphous metals; metallic glasses; alloys; corrosion; electrochemical properties;

D O I：

10.1016/j.jnoncrysol.2006.05.021

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The influence of Cr concentration on the corrosion resistance of Fe73.5Si13.5B9Nb3Cu1 and C073.5Si13.5B9Nb3Cu1 metallic glasses was studied by DC electrochemical methods in different concentrations of H2SO4 (1, 3 and 5 M) at room temperature. Gravinietric tests were performed to establish the reliability of the data obtained electrochemically. Every test was determined with the same material in different states: amorphous, nanocrystalline and crystalline. In all cases metallic glasses and nanocrystals showed better resistance to corrosion in the tested conditions with increasing chromium concentration. However, in test conditions, the Fe-based materials maintained a high corrosion rate. The corrosion resistance of Co-based materials was slightly greater than that of Fe-based materials. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：3179 / 3190

页数：12

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