Pitting corrosion behaviour of austenitic stainless steels with Cu and Sn additions

被引：83

作者：

Pardo, A. ^{[1
]}

Merino, M. C. ^{[1
]}

Carboneras, M. ^{[1
]}

Coy, A. E. ^{[1
]}

Arrabal, R. ^{[1
]}

机构：

[1] Univ Complutense Madrid, Fac Quim, Dept Ciencia Mat, E-28040 Madrid, Spain

来源：

CORROSION SCIENCE | 2007年 / 49卷 / 02期

关键词：

stainless steel; copper; tin; polarization; pitting corrosion;

D O I：

10.1016/j.corsci.2006.06.004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of Cu and Sn on the pitting corrosion resistance of AISI 304 and 316 stainless steels in chloride-containing media has been investigated. The corrosion behaviour was evaluated by cyclic polarization, potentiostatic CPT measurements and electrochemical impedance spectroscopy in 3.5 wt% NaCl. The corrosion resistance was also studied in FeCl3 under Standard ASTM G-48. According to the results, Cu addition favours pit nucleation but inhibits its growth, whereas Sn exerts the opposite effect, favouring pit growth and inhibiting its nucleation. Studies by SEM, X-ray mapping and EDS analysis showed Cu-, Cl- and O-rich corrosion products that reduce the extent of corrosion damage. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：510 / 525

页数：16

共 34 条

[1]

ABO H, 1974, BOSHOKU GIJUTSU, V23, P303

[2]

Botella J., 1998, REV METAL MADRID, V34, P12

[3]

BRUBAKER SK, 1994, METALS HDB, V13, P1148

[4]

BUCK DM, 1921, T AM ELECTROCHEM SOC, V39, P109

[5]

Fritz JD, 2001, ADV MATER PROCESS, V159, P36

[6] The influence of copper addition on the formability of AISI 304 stainless steel [J].

Gonzalez, BM ;

Castro, CSB ;

Buono, VTL ;

Vilela, JMC ;

Andrade, MS ;

Moraes, JMD ;

Mantel, MJ .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 343 (1-2) :51-56

[7]

HEGER JJ, 1982, ADV TECHNOLOGY STAIN

[8]

HEINKE G, 1996, P INT C STAINL STEEL, P12

[9] ACCUMULATION OF COPPER LAYER ON A SURFACE IN THE ANODIC POLARIZATION OF STAINLESS-STEEL CONTAINING CU AT DIFFERENT TEMPERATURES [J].

HERMAS, AA ;

OGURA, K ;

ADACHI, T .

ELECTROCHIMICA ACTA, 1995, 40 (07) :837-844

[10] EFFECTS OF ALLOYING ADDITIONS ON CORROSION AND PASSIVATION BEHAVIORS OF TYPE-304 STAINLESS-STEEL [J].

HERMAS, AA ;

OGURA, K ;

TAKAGI, S ;

ADACHI, T .

CORROSION, 1995, 51 (01) :3-10

← 1 2 3 4 →