Stress corrosion cracking of LDX 2101® duplex stainless steel in chloride solutions in the presence of thiosulphate

被引：79
|
作者：
Zanotto, F. [1 ]
Grassi, V. [2 ]
Balbo, A. [2 ]
Monticelli, C. [2 ]
Zucchi, F. [2 ]
机构：
[1] Univ Ferrara, Terra&AcquaTech Lab, I-44121 Ferrara, Italy
[2] Univ Ferrara, Corros & Met Study Ctr Aldo Dacco, I-44122 Ferrara, Italy
来源：
CORROSION SCIENCE | 2014年 / 80卷
关键词：
Stainless steel; Stress corrosion; HYDROGEN TRANSPORT; PITTING CORROSION; RESISTANCE; EMBRITTLEMENT; ENVIRONMENTS; BEHAVIOR;
D O I：
10.1016/j.corsci.2013.11.028
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
SCC behaviour of a LDX 2101 (R) stainless steel was studied through SSRT in a 20% NaCl solution at 80 degrees C and in the standard NACE TM-0177 solution at 25 degrees C in the presence of S2O32-. Some tests were also performed in the NACE solution at various pH or temperatures. The LDX 2101 (R) was susceptible to SCC in the presence of small thiosulphate concentrations. The selective corrosion of the ferrite phase became the main cause of failure when the thiosulphate concentration was increased to 0.1 M in the 20% NaCl at 80 degrees C or when NACE solution temperature was raised to 80 degrees C. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：205 / 212
页数：8
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