Corrosion resistance of Fe-based amorphous alloys

被引：92

作者：

Botta, W. J. ^{[1
,2
]}

Berger, J. E. ^{[2
]}

Kiminami, C. S. ^{[2
]}

Roche, V. ^{[1
]}

Nogueira, R. P. ^{[1
]}

Bolfarini, C. ^{[2
]}

机构：

[1] Univ Grenoble 1, LEPMI, CNRS UMR5279, Grenoble INP,Univ Savoie, F-38402 St Martin Dheres, France

[2] Univ Fed Sao Carlos, Dept Engn Mat, BR-13565905 Sao Carlos, SP, Brazil

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 586卷

关键词：

Corrosion; Amorphous alloys; Fe-based alloys; Steels; BULK GLASSY ALLOYS; C-B ALLOYS; SUPERHIGH STRENGTH; FORMING ABILITY; NB ALLOYS; BEHAVIOR; MO; NI;

D O I：

10.1016/j.jallcom.2012.12.130

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Fe-based amorphous alloys can be designed to present an attractive combination of properties with high corrosion resistance and high mechanical strength. Such properties are clearly adequate for their technological use as coatings, for example, in steel pipes. In this work, we studied the corrosion properties of amorphous ribbons of the following Fe-based compositions: Fe66B30Nb4, [(Fe0.6Co0.4)(0.75)B0.2Si0.05](96)Nb-4, [(Fe0.7Co0.3)(0.75)B0.2Si0.05](96)Nb-4, Fe56Cr23Ni5.7B16, Fe53Cr22Ni5.6B19 and Fe50Cr22Ni5.4B23. The ribbons were obtained by rapid solidification using the melt-spinning process, and were characterized by X-ray diffraction (XRD), differential scanning calorimetry (DSC) and optical (OM) and scanning electron microscopy (SEM). The corrosion properties were evaluated by corrosion potential survey and potentiodynamic polarization. The Cr containing alloys, that is the FeCrNiB type of alloys, showed the best corrosion resistance properties with the formation of a stable passive film that ensured a very large passivation plateau. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：S105 / S110

页数：6

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