Application of the modified electrochemical potentiodynamic reactivation method to detect susceptibility to intergranular corrosion of a newly developed lean duplex stainless steel LDX2101

被引：105

作者：

Deng, Bo ^{[1
]}

Jiang, Yiming ^{[1
]}

Xu, Juliang ^{[1
]}

Sun, Tao ^{[1
]}

Gao, Juan ^{[1
]}

Zhang, Lihua ^{[1
]}

Zhang, Wei ^{[2
]}

Li, Jin ^{[1
]}

机构：

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

[2] Baosteel Co LTD, Inst Stainless Steel, Shanghai 201900, Peoples R China

来源：

CORROSION SCIENCE | 2010年 / 52卷 / 03期

基金：

美国国家科学基金会;

关键词：

Stainless steel; SEM; Intergranular corrosion; PITTING CORROSION; EPR TECHNIQUE; SIGMA-PHASE; SENSITIZATION; BEHAVIOR; RESISTANCE; MICROSTRUCTURE; PRECIPITATION; TOUGHNESS;

D O I：

10.1016/j.corsci.2009.11.020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present work aimed at defining optimal conditions using double loop electrochemical potentiokinetic reactivation (DL-EPR) method for evaluating intergranular corrosion (IGC) susceptibility of lean duplex stainless steel (LDX2101) aged at 700 degrees C between 3 min and 300 h. The results demonstrated that the modified DL-EPR measurement (solution of 33% H2SO4 + 0.1% HCl at 20 degrees C and scan rate of 2.5 mV/s) could successfully characterize the interactions between precipitation, chromium depletion and IGC of LDX2101 with high sensitivity and reproducibility. In addition, there was no indication of healing because the effect of formation of chromium-enriched precipitates was more dominative than that of redistribution of chromium in depleted zones. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.

引用

页码：969 / 977

页数：9

共 47 条

[1] Double loop electrochemical potentiokinetic reactivation test optimization in checking of duplex stainless steel intergranular corrosion susceptibility [J].

Amadou, T ;

Braham, C ;

Sidhom, H .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2004, 35A (11) :3499-3513

[2] Sensitization phenomena on aged SAF 2205 duplex stainless steel and their control using the electrochemical potentiokinetic reactivation test [J].

Angelini, E ;

De Benedetti, B ;

Maizza, G ;

Rosalbino, F .

CORROSION, 1999, 55 (06) :606-615

[3] Microstructural evolution and localized corrosion resistance of an aged superduplex stainless steel [J].

Angelini, E ;

De Benedetti, B ;

Rosalbino, F .

CORROSION SCIENCE, 2004, 46 (06) :1351-1367

[4]

[Anonymous], BOSHOKU GIJUTSU CORR

[5]

*ASTM, 1997, G2897 ASTM

[6]

*ASTM, 1998, A26298 ASTM

[7] Determination of susceptibility to intergranular corrosion and electrochemical reactivation behaviour of AISI 316L type stainless steel [J].

Aydogdu, G. H. ;

Aydinol, M. K. .

CORROSION SCIENCE, 2006, 48 (11) :3565-3583

[8] Effect of microstructure on corrosion behavior of superduplex stainless steel at critical environment conditions [J].

Bastos, Ivan N. ;

Tavares, Sergio S. M. ;

Dalard, Francis ;

Nogueira, Ricardo P. .

SCRIPTA MATERIALIA, 2007, 57 (10) :913-916

[9] Role of microstructure on the corrosion susceptibility of UNSS32101 duplex stainless steel [J].

Bhattachatya, A. ;

Singh, P. M. .

CORROSION, 2008, 64 (06) :532-540

[10] The electrochemical reactivation test (ERT) to detect the susceptibility to intergranular corrosion [J].

Bühler, HE ;

Gerlach, L ;

Greven, O ;

Bleck, W .

CORROSION SCIENCE, 2003, 45 (10) :2325-2336

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