Electrochemical investigations on the bulk glass forming Zr55Cu30Al10Ni5 alloy

被引：52

作者：

Gebert, A ^{[1
]}

Mummert, K ^{[1
]}

Eckert, J ^{[1
]}

Schultz, L ^{[1
]}

Inoue, A ^{[1
]}

机构：

[1] TOHOKU UNIV,INST MAT RES,SENDAI,MIYAGI 98077,JAPAN

来源：

MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 1997年 / 48卷 / 05期

关键词：

D O I：

10.1002/maco.19970480504

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electrochemical behaviour of the Zr55Cu30Al10Ni5 amorphous alloy prepared as cylindrical bulk samples with 7 mm diameter has been investigated. Cyclic potentiodynamic polarization measurements carried out on the cross section areas of the samples in air-saturated and nitrogen-purged sulphate and hydroxide solutions, respectively, show that the alloy rapidly forms protective passive layers with low electron conductivity which are stable in a wide pH-value and potential range. Anodic layer formation reactions are characterized. In chloride containing electrolytes a pitting corrosion susceptibility of the hulk material exists. The effect of crystalline defects as active sites for the initiation of localized corrosion processes is critically discussed.

引用

页码：293 / 297

页数：5

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