Effect of Aging Time on the Corrosion Behavior of a Cu-Ni-Si Alloy in 3.5 wt% NaCl Solution

被引：15

作者：

Lei, Qian ^{[1
,2
]}

Li, Zhou ^{[1
]}

Han, Liang ^{[1
]}

Xiao, Zhu ^{[3
]}

Xiao, Tao ^{[1
]}

机构：

[1] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China

[2] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA

[3] Minist Educ, Key Lab Nonferrous Met Mat Sci & Engn, Changsha 4100083, Peoples R China

来源：

CORROSION | 2016年 / 72卷 / 05期

基金：

中国国家自然科学基金;

关键词：

age hardening; copper; corrosion resistance; microstructure; NaCl solution; polarization curves; strength; x-ray photoelectron spectroscopy; HYDROGEN EMBRITTLEMENT; HIGH-CONDUCTIVITY; COPPER CORROSION; STRENGTH; MICROSTRUCTURE; ALUMINUM; BRASS; WATER; INHIBITION; MECHANISM;

D O I：

10.5006/1884

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Effect of aging time on corrosion behavior of a Cu-6.0Ni-1.0Si-0.5Al-0.15Mg-0.1Cr alloy immersed in a 3.5 wt% NaCl solution was investigated. The studied alloy exhibited good corrosion resistance compared with other super high-strength Cu-based alloys, and its corrosion resistance increased with the aging time. The purity of the copper matrix increased with precipitation and precipitates coarsening, resulting in the corrosion resistance increasing. Impedance spectra and equivalent circuit analysis confirmed that a multi-layer protective film formed on sample surface. Typical uniform corrosion appeared in this alloy, and the film density increased with the days of immersion and the aging treatment time. X-ray photoelectron spectra results showed that the main corrosion products were CuO, Cu2O, Al2O3, and Al(OH)(3).

引用

页码：615 / 627

页数：13

共 52 条

[1] Copper corrosion inhibition in O2-saturated H2SO4 solutions [J].

Amin, Mohammed A. ;

Khaled, K. F. .

CORROSION SCIENCE, 2010, 52 (04) :1194-1204

[2] Effect of Ni content on the corrosion behavior of Cu-Ni alloys in neutral chloride solutions [J].

Badawy, WA ;

Ismail, KM ;

Fathi, AM .

ELECTROCHIMICA ACTA, 2005, 50 (18) :3603-3608

[3] A NONLINEAR LEAST-SQUARES FIT PROCEDURE FOR ANALYSIS OF IMMITTANCE DATA OF ELECTROCHEMICAL SYSTEMS [J].

BOUKAMP, BA .

SOLID STATE IONICS, 1986, 20 (01) :31-44

[4]

Campbell S.A., 1998, Developments in Marine Corrosion

[5] Corrosion Mechanism in Artificial Sweat Solution of In-Bearing White Bronze Alloy [J].

Caporali, S. ;

Bardi, U. .

CORROSION, 2012, 68 (02)

[6] Corrosion characteristic of Ce Al brass in comparison with As Al brass [J].

Chen, J. L. ;

Li, Z. ;

Zhao, Y. Y. .

MATERIALS & DESIGN, 2009, 30 (05) :1743-1747

[7] Passivity and Pit Stability Behavior of Copper as a Function of Selected Water Chemistry Variables [J].

Cong, Hongbo ;

Michels, Harold T. ;

Scully, John R. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2009, 156 (01) :C16-C27

[8]

CROUSIER J, 1990, WERKST KORROS, V41, P185

[9] Effects of Sc and Zr microalloying additions and aging time at 120 °C on the corrosion behaviour of an Al-Zn-Mg alloy [J].

Deng, Ying ;

Yin, Zhimin ;

Zhao, Kai ;

Duan, Jiaqi ;

Hu, Jian ;

He, Zhenbo .

CORROSION SCIENCE, 2012, 65 :288-298

[10] DIFFERENCE REFLECTANCE SPECTROSCOPY OF ANODIC FILMS ON COPPER AND COPPER BASE ALLOYS [J].

DESANCHEZ, SR ;

BERLOUIS, LEA ;

SCHIFFRIN, DJ .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1991, 307 (1-2) :73-86

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