Comparative study between large-scale and small-scale electrochemical potentiokinetic reactivation performed on AISI 316L austenitic stainless steel

被引：16

作者：

Martin, Oscar ^{[1
]}

De Tiedra, Pilar ^{[1
]}

Garcia, Cristina ^{[1
]}

Martin, Fernando ^{[1
]}

Lopez, Manuel ^{[1
]}

机构：

[1] Univ Valladolid, Dept CMeIM EGI ICGF IM IPF, Escuela Ingn Ind, E-47011 Valladolid, Spain

来源：

CORROSION SCIENCE | 2012年 / 54卷

关键词：

Stainless steel; Polarization; Effects of strain; Intergranular corrosion; Welding; STRESS-CORROSION CRACKING; SPOT-WELDING JOINTS; PRIOR COLD WORK; INTERGRANULAR CORROSION; MICROELECTROCHEMICAL METHOD; CREVICE CORROSION; PITTING CORROSION; WELDED-JOINTS; CHLORIDE-ION; RESISTANCE;

D O I：

10.1016/j.corsci.2011.09.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work optimizes the application of electrochemical potentiokinetic reactivation (EPR) to assess the degree of sensitization (DOS) of AISI 316L and compares the large-scale and small-scale EPR with the aim of improving the study of the different zones of AISI 316L welded joints by using an electrochemical minicell. The optimized EPR allows to discriminate better than the standardized EPR among different DOS. Small-scale EPR shows greater sensitivity to assess the DOS than large-scale EPR: (i) at lower deformation levels; (ii) for shorter sensitization times; (iii) when localized microstructural regeneration is caused by the combined effect of deformation and subsequent sensitization. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：119 / 126

页数：8

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