Kinetics of Passive Film on Low Carbon Steel in Sodium Nitrate Solution by Numerical Analysis Method

2012 ◽  
Vol 457-458 ◽  
pp. 358-364 ◽  
Author(s):  
Ye Han ◽  
Zhen Duo Cui ◽  
Qiang Wei ◽  
Sheng Li Zhu ◽  
Xian Jin Yang
Keyword(s):  
Numerical Analysis ◽  
Carbon Steel ◽  
Passive Film ◽  
Sodium Nitrate ◽  
Nitrate Solution ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Analysis Method ◽  
Sodium Nitrate Solution ◽  
Kinetics Of

Passivation is a common means of material protection against corrosion applied in engineering. It is necessary to study the kinetics of the passive films forming to control the passivation process. A numerical analysis method is proposed and applied to study passivation kinetics of low carbon steel in sodium nitrate solution. Curve of passive film coverage against time is obtained and discussed. A maximum growth rate is found at initiating passive potential during the film forming process, and the film has already begun forming before the initiating passive potential arrived.

Kinetics of microdamage accumulation in low-carbon steel in the initial state and after ECAP

2020 ◽  
Author(s):  
I. O. Sinev ◽  
E. N. Beletsky ◽  
M. R. Tyutin ◽  
L. R. Botvina ◽  
O. V. Rybalchenko ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Initial State ◽  
Microdamage Accumulation ◽  
Kinetics Of

scholarly journals Microstructural evolution, recovery and recrystallization kinetics of isothermally annealed ultra low carbon steel

2020 ◽  
Vol 7 (1) ◽  
pp. 016554
Author(s):  
Siuli Dutta ◽  
Ashis K Panda ◽  
Amitava Mitra ◽  
Subrata Chatterjee ◽  
Rajat K Roy
Keyword(s):  
Carbon Steel ◽  
Microstructural Evolution ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Recrystallization Kinetics ◽  
Ultra Low Carbon Steel ◽  
Kinetics Of

Morphology of Oxide Scale and Oxidation Kinetics of Low Carbon Steel

2014 ◽  
Vol 21 (3) ◽  
pp. 335-341 ◽  
Author(s):  
Guang-ming Cao ◽  
Xiao-jiang Liu ◽  
Bin Sun ◽  
Zhen-yu Liu
Keyword(s):  
Carbon Steel ◽  
Oxide Scale ◽  
Oxidation Kinetics ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Kinetics Of

Characterization of Kinetics of Deformation-Enhanced Transformation in a Low Carbon Steel

2005 ◽  
Vol 475-479 ◽  
pp. 73-76
Author(s):  
Jun Jie Qi ◽  
Wang Yue Yang ◽  
Zu Qing Sun ◽  
X. Zhang
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Microstructural Development ◽  
Low Carbon ◽  
Transformation Kinetics ◽  
Nucleation Sites ◽  
Ferrite Nucleation ◽  
Kinetics Of ◽  
Kinetics Parameter

Quantitative characterization of microstructural development during deformation enhanced transformation in a low carbon steel was investigated on a Gleeble 1500 machine. General conclusions of the features of austenite transformation kinetics during deformation-enhanced transformation were formulated. It was shown that the process of deformation-enhanced transformation can be divided into three stages according to the characteristics of transformation kinetics: The kinetics equations of two early stages fitted well in J-M-A equation. The kinetics of the first stage obeys Cahn’s site saturation mechanism, with the value of kinetics parameter n of 4. Ferrite nucleates at austenite grain boundaries and triple points during the first stage. Kinetics of the second stage doesn’t obey Cahn’s theory, with the value of kinetics parameter n of 1-1.5, corresponding to ferrite nucleation repeatedly at areas with high stored energy in front of the ferrite/austenite interface. The kinetics doesn’t obey the law of J-M-A equation any more in the final stage, and only few nucleation sites left at this moment.

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