Electrochemical and passive characterization of a beta type Ti45Zr38Al17 cast rod in nitric acid medium

被引：62

作者：

Jayaraj, J. ^{[1
]}

Shankar, A. Ravi ^{[1
]}

Mudali, U. Kamachi ^{[1
]}

机构：

[1] Indira Gandhi Ctr Atom Res, Corros Sci & Technol Grp, Kalpakkam 603102, Tamil Nadu, India

来源：

ELECTROCHIMICA ACTA | 2012年 / 85卷

关键词：

Beta titanium alloy; Polarization; EIS; XPS; Passive film; FUEL REPROCESSING PLANTS; AUSTENITIC STAINLESS-STEELS; CORROSION BEHAVIOR; TITANIUM; ALLOY; TI; OXIDES; OXYGEN; FILMS; XPS;

D O I：

10.1016/j.electacta.2012.08.047

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Electrochemical behavior of the recently developed beta-type Ti-38 at% Zr-17 at% Al (TZA) alloy has been studied in nitric acid medium for applications in nuclear reprocessing plant. Potentiodynamic polarization and electrochemical impedance studies revealed that the passive film formed on the TZA alloy was highly protective in nature. Mott-Schottky analysis of the passive film formed on TZA alloy showed n-type semiconducting properties. The electrochemical data confirmed the superior corrosion resistance of TZA alloy as the passive film formed exhibited better properties than that of the commercial pure Ti. XPS analyses confirmed that the stable passivity of TZA alloy in nitric acid was due to the formation of thick and protective passive layer, predominantly of ZrO2 with TiO2. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：210 / 219

页数：10

共 32 条

[1] Oxides formed on titanium by polishing, etching, anodizing, or thermal oxidizing [J].

Birch, JR ;

Burleigh, TD .

CORROSION, 2000, 56 (12) :1233-1241

[2] STABILITY AND OPEN CIRCUIT BREAKDOWN OF THE PASSIVE OXIDE FILM ON TITANIUM [J].

BLACKWOOD, DJ ;

PETER, LM ;

WILLIAMS, DE .

ELECTROCHIMICA ACTA, 1988, 33 (08) :1143-1149

[3]

Bomberger H.B., 1957, CORROSION, V13, P287

[4] Corrosion mechanisms of austenitic stainless steels in nitric media used in reprocessing plants [J].

Fauvet, P. ;

Balbaud, F. ;

Robin, R. ;

Tran, Q. -T. ;

Mugnier, A. ;

Espinoux, D. .

JOURNAL OF NUCLEAR MATERIALS, 2008, 375 (01) :52-64

[5]

Fonesca C., 1994, J ELECTROANAL CHEM, V379, P173

[6] THE EFFECT OF OXIDIZING IONS ON THE PASSIVITY OF THE VALVE METALS IN BOILING NITRIC-ACID SOLUTIONS [J].

FUJII, T ;

BABA, H .

CORROSION SCIENCE, 1990, 31 :275-280

[7]

Furuya T., 1984, ANS INT TOP M FUEL R, V1, P249

[8] Influences of structure and composition on growth of anodic oxide films on Ti-Zr alloys [J].

Habazaki, H ;

Uozumi, M ;

Konno, H ;

Shimizu, K ;

Nagata, S ;

Asami, K ;

Matsumoto, K ;

Takayama, K ;

Oda, Y ;

Skeldon, P ;

Thompson, GE .

ELECTROCHIMICA ACTA, 2003, 48 (20-22) :3257-3266

[9] Technical note:: Concerning the conversion of the constant phase element parameter Y0 into a capacitance [J].

Hsu, CH ;

Mansfeld, F .

CORROSION, 2001, 57 (09) :747-748

[10] Investigation on passivity of titanium under steady-state conditions in acidic solutions [J].

Jiang, Zhonglin ;

Dai, Xin ;

Middleton, Hugh .

MATERIALS CHEMISTRY AND PHYSICS, 2011, 126 (03) :859-865

← 1 2 3 4 →