Point defect model for passivity breakdown on hyper-duplex stainless steel 2707 in solutions containing bromide at different temperatures

被引：48

作者：

Sun, Li ^{[1
,2
,3
]}

Zhao, Tianyu ^{[2
]}

Qiu, Jie ^{[2
]}

Sun, Yangting ^{[3
]}

Li, Kuijiao ^{[1
]}

Zheng, Haibing ^{[1
]}

Jiang, Yiming ^{[3
]}

Li, Yanhui ^{[4
]}

Li, Jin ^{[3
]}

Li, Weihua ^{[1
]}

Macdonald, Digby D. ^{[2
]}

机构：

[1] Sun Yat Sen Univ, Sch Chem Engn & Technol, Zhuhai 519082, Peoples R China

[2] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA

[3] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China

[4] Xi An Jiao Tong Univ, Key Lab Thermofluid Sci & Engn MOE, Sch Energy & Power Engn, Xian 710049, Shaanxi, Peoples R China

来源：

CORROSION SCIENCE | 2022年 / 194卷

基金：

中国国家自然科学基金;

关键词：

HDSS; 2707; Bromide solution; Passivity breakdown; Point Defect Model; PITTING CORROSION-RESISTANCE; FILM; PRECIPITATION; BEHAVIOR; STATE; SURFACES; KINETICS; PHASE;

D O I：

10.1016/j.corsci.2021.109959

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Passivity breakdown on HDSS 2707 has been studied and the electrochemical data are interpreted in terms of the Point Defect Model. Pitting parameters of HDSS 2707 are determined, including the polarizability at bl/s interface, the defect annihilation rate, and the defect diffusion coefficient. The breakdown potential is demonstrated to be linearly related to log [Br-], pH, and the square root of potential scan rate (v1/2), and follows a nearnormal distribution. The critical vacancy concentration calculated from the PDM is consistent with that estimated crystallographically from the chromic barrier layer, and the dominant point defect is further confirmed by Mott-Schottky measurements.

引用

页数：15

共 52 条

[1]

Bertolini L, 1996, BRIT CORROS J, V31, P218

[2] A POINT-DEFECT MODEL FOR ANODIC PASSIVE FILMS .3. IMPEDANCE RESPONSE [J].

CHAO, CY ;

LIN, LF ;

MACDONALD, DD .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1982, 129 (09) :1874-1879

[3] A POINT-DEFECT MODEL FOR ANODIC PASSIVE FILMS .1. FILM GROWTH-KINETICS [J].

CHAO, CY ;

LIN, LF ;

MACDONALD, DD .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1981, 128 (06) :1187-1194

[4] Failure investigation of heat exchanger plates due to pitting corrosion [J].

Deen, K. M. ;

Virk, M. A. ;

Hague, C. I. ;

Ahmad, R. ;

Khan, I. H. .

ENGINEERING FAILURE ANALYSIS, 2010, 17 (04) :886-893

[5] Passivity of titanium, part 1: film growth model diagnostics [J].

Ellerbrock, David ;

Macdonald, Digby D. .

JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2014, 18 (05) :1485-1493

[6] PASSIVITY BREAKDOWN ON SOLID VERSUS LIQUID GALLIUM [J].

ELLERBROCK, DJ ;

MACDONALD, DD .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1994, 141 (10) :2645-2649

[7] PASSIVITY BREAKDOWN, ITS RELATION TO PITTING AND STRESS-CORROSION-CRACKING PROCESSES [J].

GALVELE, JR ;

TORRESI, RM ;

CARRANZA, RM .

CORROSION SCIENCE, 1990, 31 :563-571

[8]

Ghanbari E., 2017, P 2017 DOD ALL NAT T, P7

[9] Sandvik SAF 2707 HD® (UNS S32707):: a hyper-duplex stainless steel for severe chloride containing environments [J].

Goeransson, K. ;

Nyman, M.-L. ;

Holmquist, M. ;

Gomes, E. .

REVUE DE METALLURGIE-CAHIERS D INFORMATIONS TECHNIQUES, 2007, 104 (09) :411-417

[10] Theoretical prediction of the scan rate dependencies of the fitting potential and the probability distribution in the induction time [J].

Haruna, T ;

Macdonald, DD .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (05) :1574-1581

← 1 2 3 4 5 6 →