Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/17861
Title: Glass-formation and corrosion properties of Fe-Cr-Mo-C-B glassy ribbons with low Cr content
Authors: Madinehei, M.
Bruna, P.
Duarte, M. J.
Pineda, E.
Klemm, J.
RENNER, Frank 
Issue Date: 2014
Publisher: ELSEVIER SCIENCE SA
Source: JOURNAL OF ALLOYS AND COMPOUNDS, 615 (S1), p. S128-S131
Abstract: The effect of low amounts of Cr on glass forming ability and corrosion behavior of Fe(65-x)CrxMo14C15B6 (x = 0, 2, 4, 6, 8,10 at.%) ribbons have been studied. It was found that the reduced glass transition temperature (T-rg) do not change significantly with Cr content. The glass forming ability (GFA) of this system is evaluated by the gamma(m), delta and omega parameters and the alloys containing 4 and 6 at.% were found to be the best glass formers in this system. The temperature interval of the supercooled liquid region (Delta T-x) changed with Cr and was enlarged from 35 K at x = 0 to 50 K at x = 4. Corrosion rates measured by immersion tests in H2SO4 decreased with an increase of chromium content in the alloys. The electrochemical measurements indicate that the alloys containing more than 4 at.% of Cr are spontaneously passivated with low current densities in 0.1 N H2SO4 whereas the alloys with Cr content <4 at.% showed transpassive Mo dissolution. In view of these results, the optimal amount of Cr addition in Fe-Mo-C-B amorphous steels is discussed. (C) 2014 Elsevier B.V. All rights reserved.
Notes: [Madinehei, M.; Bruna, P.] Univ Politecn Cataluna, BarcelonaTech, Dept Fis Aplicada, EPSC, Castelldefels 08860, Spain. [Duarte, M. J.; Klemm, J.; Renner, F. U.] Max Planck Inst Eisenforsch GmbH, Dept Interface Chem & Surface Engn, D-40237 Dusseldorf, Germany. [Pineda, E.] Univ Politecn Cataluna, BarcelonaTech, Dept Fis & Engn Nucl, ESAB, Castelldefels 08860, Spain. [Renner, F. U.] Hasselt Univ, Inst Mat Res IMO, B-63590 Diepenbeek, Belgium.
Keywords: Fe-based; Amorphous alloys; Glass forming ability; Corrosion;Fe-based; amorphous alloys; glass forming ability; corrosion
Document URI: http://hdl.handle.net/1942/17861
ISSN: 0925-8388
e-ISSN: 1873-4669
DOI: 10.1016/j.jallcom.2013.12.245
ISI #: 000343613600027
Rights: © 2014 Elsevier B.V. All rights reserved.
Category: A1
Type: Journal Contribution
Validations: ecoom 2015
Appears in Collections:Research publications

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