Kinetics of the Corrosion of Iron in Aqueous Electrolytes at Temperatures up to 300°C

1990 ◽  
Vol 94 (12) ◽  
pp. 1443-1449 ◽  
Author(s):  
K. E. Heusler ◽  
B. Kusian ◽  
D. McPhail
CORROSION ◽  
1976 ◽  
Vol 32 (9) ◽  
pp. 353-357 ◽  
Author(s):  
RONALD B. DIEGLE ◽  
DAVID A. VERMILYEA

Abstract Straining electrode experiments were performed to investigate the nature of strain enhanced corrosion of iron in caustic electrolyte. The strain enhanced corrosion rate was generally linearly dependent on applied strain rate, and its potential dependence paralleled that of steady-state polarization behavior on non-straining electrodes. Data was presented as ratios, in which is the corrosion rate in cm/s and is the corresponding strain rate. This ratio, which was shown in a previously published theory to be numerically equal to the crack advance per film rupture event during film rupture SCC, depended on electrochemical variables such as electrolyte concentration and temperature in a manner similar to the kinetics of caustic cracking. Conditions which are known to be marginal in producing caustic cracking resulted in values for of about 10−7 cm, in excellent agreement with a previously developed theory. It was concluded that strain enhanced corrosion in this system results from repetitive film rupture and repair during straining.


2011 ◽  
Vol 8 (s1) ◽  
pp. S358-S362 ◽  
Author(s):  
D. B. Patil ◽  
A. R. Sharma

The kinetics of corrosion of iron in acid and base medium by weight loss method was investigated. The corrosion kinetics was studied in sulphuric acid, nitric acid and potassium hydroxide by weight loss method at different time intervals at 25.0°C to 40.0°C. The result showed that the corrosion rate vary with different time interval and different acid – base concentration. The order of corrosion of iron in these media was found to be nitric acid > sulphuric acid > potassium hydroxide. Further the specific reaction rate, half-life time, energy of activation, entropy of activation and enthalpy of activation was also evaluated.


2017 ◽  
Vol 121 (38) ◽  
pp. 20613-20620 ◽  
Author(s):  
Adam J. Crowe ◽  
John L. DiMeglio ◽  
Kyle K. Stringham ◽  
Bart M. Bartlett

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