Effects of tungsten and nickel on repassivation rate of stainless steels in chloride solution by electrochemical method

2006 ◽  
Vol 57 (11) ◽  
pp. 835-842 ◽  
Author(s):  
S.Y. Kim ◽  
H. Kim ◽  
H.-S. Kwan
Keyword(s):  
Stainless Steels ◽  
Electrochemical Method ◽  
Chloride Solution

Detecting Critical Crevice Temperature for Duplex Stainless Steels in Chloride Solutions

CORROSION ◽  
2011 ◽  
Vol 67 (2) ◽  
pp. 025004-1-025004-7 ◽  
Author(s):  
D. Han ◽  
Y. Jiang ◽  
B. Deng ◽  
L. Zhang ◽  
J. Gao ◽  
...  
Keyword(s):  
Stainless Steels ◽  
Crevice Corrosion ◽  
Electrochemical Method ◽  
Duplex Stainless Steels ◽  
Good Reproducibility ◽  
X Ray ◽  
Initiation Step ◽  
Critical Pitting Temperature ◽  
Preferential Dissolution ◽  
Scanning Electron

Abstract A simple and rapid electrochemical method for the evaluation of crevice corrosion in duplex stainless steels (DSS) is described. Three types of DSS—namely, UNS S32101, UNS S31803, and UNS S32750—were tested in 1 mol/L sodium chloride (NaCl) solutions. Results showed good reproducibility with a typical standard deviation of below 3°C. The critical pitting temperature (CPT) for the same specimens was also investigated in 1 mol/L NaCl solutions. An approximately 20°C decrease from CPT to critical crevice temperature (CCT) was observed and subsequently explained. Then, the morphologies of crevice corrosion were studied using scanning electron microscopy with energy-dispersive x-ray spectroscopy (SEM/EDS) method. The SEM/EDS study revealed that the ferrite phase was the site where preferential dissolution took place at the initiation step of crevice corrosion, which was in accordance with the prediction by calculating the critical crevice index. Moreover, repassivation was detected with the development of crevice corrosion. The reason was clarified by combining the results obtained with a successful diffusion model, and eventually the crevice corrosion progress was illustrated schematically.

The Critical Pitting Chloride Concentration of Various Stainless Steels Measured by an Electrochemical Method

2018 ◽  
Vol 165 (14) ◽  
pp. C939-C949 ◽  
Author(s):  
Xuan Wu ◽  
Yangting Sun ◽  
Yuanyuan Liu ◽  
Yuanyuan Yang ◽  
Jin Li ◽  
...  
Keyword(s):  
Stainless Steels ◽  
Electrochemical Method ◽  
Chloride Concentration

Corrosion Behaviour of Injection Moulded 316L and 17-4PH Stainless Steels in a Sodium Chloride Solution

2001 ◽  
Vol 189-191 ◽  
pp. 667-672 ◽  
Author(s):  
A.V.C. Sobral ◽  
Waldyr Ristow ◽  
Olandir Vercino Correa ◽  
César V. Franco ◽  
Isolda Costa
Keyword(s):  
Sodium Chloride ◽  
Stainless Steels ◽  
Chloride Solution ◽  
Sodium Chloride Solution ◽  
Corrosion Behaviour

Composition of Anolyte Within Pit Anode of Austenitic Stainless Steels in Chloride Solution

CORROSION ◽  
1973 ◽  
Vol 29 (1) ◽  
pp. 18-22 ◽  
Author(s):  
TSUGUO SUZUKI ◽  
MINORU YAMABE ◽  
YOSHIHARU KITAMURA
Keyword(s):  
Stainless Steels ◽  
Chloride Solution ◽  
Austenitic Stainless Steels

scholarly journals Influence of Clad Metal Chemistry on Stress Corrosion Cracking Behaviour of Stainless Steels Claddings in Chloride Solution

Engineering ◽  
2010 ◽  
Vol 02 (05) ◽  
pp. 391-396 ◽  
Author(s):  
Edmilson O. Correa ◽  
Reginaldo P. Barbosa ◽  
Augusto J. A. Buschinelli ◽  
Eduardo M. Silva
Keyword(s):  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Stainless Steels ◽  
Chloride Solution ◽  
Corrosion Cracking ◽  
Metal Chemistry
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