The influence mechanism of Fe3+ on corrosion behavior of Ti6Al4V in sulfuric acid solutions

L. Wang; X. Q. Cheng; S. J. Gao; X. G. Li; S. W. Zou

doi:10.1002/maco.201307380

The influence mechanism of Fe³⁺ on corrosion behavior of Ti6Al4V in sulfuric acid solutions

L. Wang
, X. Q. Cheng
, S. J. Gao
, X. G. Li^*
, S. W. Zou

^*Corresponding author for this work

University of Science and Technology Beijing
Key Laboratory of Precision Opto-Mechatronics Technology (Ministry of Education)

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

The corrosion behavior of titanium alloy Ti6Al4V in 44.6wt% sulfuric acid solutions, was studied via potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), Mott-Schottky and X-ray photoelectron spectroscopy (XPS) techniques. The results indicated that the Fe³⁺ played an important role in the passivation and stability of the passive film formed on Ti6Al4V. When the concentration of Fe³⁺ reached to 0.001 M, the hydrogen evolution reaction (cathodic process) was remarkably influenced, the anode process of the corrosion reaction changed from active state to passivation state, and it showed an enormous increase of the impedance values (R_c) with the capacitive arc varying from two to one. XPS results showed that as the concentration of Fe³⁺ increased, there were less intermediate valence oxides Ti₂O₃ and more stable valence oxides TiO₂. Fe³⁺ made more intermediate valence titanium ions or instability titanium oxides transformed into stable valence oxides, which enhanced the stability of the passive film.

Original language	English
Pages (from-to)	251-256
Number of pages	6
Journal	Materials and Corrosion
Volume	66
Issue number	3
DOIs	https://doi.org/10.1002/maco.201307380
State	Published - 1 Mar 2015
Externally published	Yes

Access to Document

10.1002/maco.201307380

Cite this

@article{c4a82263d8d946d185de23d4ae27d507,

title = "The influence mechanism of Fe3+ on corrosion behavior of Ti6Al4V in sulfuric acid solutions",

abstract = "The corrosion behavior of titanium alloy Ti6Al4V in 44.6wt\% sulfuric acid solutions, was studied via potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), Mott-Schottky and X-ray photoelectron spectroscopy (XPS) techniques. The results indicated that the Fe3+ played an important role in the passivation and stability of the passive film formed on Ti6Al4V. When the concentration of Fe3+ reached to 0.001 M, the hydrogen evolution reaction (cathodic process) was remarkably influenced, the anode process of the corrosion reaction changed from active state to passivation state, and it showed an enormous increase of the impedance values (Rc) with the capacitive arc varying from two to one. XPS results showed that as the concentration of Fe3+ increased, there were less intermediate valence oxides Ti2O3 and more stable valence oxides TiO2. Fe3+ made more intermediate valence titanium ions or instability titanium oxides transformed into stable valence oxides, which enhanced the stability of the passive film.",

author = "L. Wang and Cheng, \{X. Q.\} and Gao, \{S. J.\} and Li, \{X. G.\} and Zou, \{S. W.\}",

note = "Publisher Copyright: {\textcopyright} 2013 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim.",

year = "2015",

month = mar,

day = "1",

doi = "10.1002/maco.201307380",

language = "英语",

volume = "66",

pages = "251--256",

journal = "Materials and Corrosion",

issn = "0947-5117",

publisher = "John Wiley and Sons Inc",

number = "3",

}

TY - JOUR

T1 - The influence mechanism of Fe3+ on corrosion behavior of Ti6Al4V in sulfuric acid solutions

AU - Wang, L.

AU - Cheng, X. Q.

AU - Gao, S. J.

AU - Li, X. G.

AU - Zou, S. W.

PY - 2015/3/1

Y1 - 2015/3/1

N2 - The corrosion behavior of titanium alloy Ti6Al4V in 44.6wt% sulfuric acid solutions, was studied via potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), Mott-Schottky and X-ray photoelectron spectroscopy (XPS) techniques. The results indicated that the Fe3+ played an important role in the passivation and stability of the passive film formed on Ti6Al4V. When the concentration of Fe3+ reached to 0.001 M, the hydrogen evolution reaction (cathodic process) was remarkably influenced, the anode process of the corrosion reaction changed from active state to passivation state, and it showed an enormous increase of the impedance values (Rc) with the capacitive arc varying from two to one. XPS results showed that as the concentration of Fe3+ increased, there were less intermediate valence oxides Ti2O3 and more stable valence oxides TiO2. Fe3+ made more intermediate valence titanium ions or instability titanium oxides transformed into stable valence oxides, which enhanced the stability of the passive film.

AB - The corrosion behavior of titanium alloy Ti6Al4V in 44.6wt% sulfuric acid solutions, was studied via potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), Mott-Schottky and X-ray photoelectron spectroscopy (XPS) techniques. The results indicated that the Fe3+ played an important role in the passivation and stability of the passive film formed on Ti6Al4V. When the concentration of Fe3+ reached to 0.001 M, the hydrogen evolution reaction (cathodic process) was remarkably influenced, the anode process of the corrosion reaction changed from active state to passivation state, and it showed an enormous increase of the impedance values (Rc) with the capacitive arc varying from two to one. XPS results showed that as the concentration of Fe3+ increased, there were less intermediate valence oxides Ti2O3 and more stable valence oxides TiO2. Fe3+ made more intermediate valence titanium ions or instability titanium oxides transformed into stable valence oxides, which enhanced the stability of the passive film.

UR - https://www.scopus.com/pages/publications/84924214782

U2 - 10.1002/maco.201307380

DO - 10.1002/maco.201307380

M3 - 文章

AN - SCOPUS:84924214782

SN - 0947-5117

VL - 66

SP - 251

EP - 256

JO - Materials and Corrosion

JF - Materials and Corrosion

IS - 3

ER -

The influence mechanism of Fe³⁺ on corrosion behavior of Ti6Al4V in sulfuric acid solutions

Abstract

Access to Document

Other files and links

Fingerprint

Cite this