Study on Initial Oxidation Film Formation Mechanism of T23 Steel at 600°C

2013 ◽  
Vol 690-693 ◽  
pp. 252-255
Author(s):  
Wei Wang ◽  
Zhi Wu Wang ◽  
Wan Li Zhong ◽  
Tao Song ◽  
Wei Wei
Keyword(s):  
Formation Mechanism ◽  
Oxidation Process ◽  
Film Formation ◽  
Film Structure ◽  
Initial Oxidation ◽  
Rich Phase ◽  
Initial Formation ◽  
Film Layer ◽  
Double Oxidation ◽  
Film Formation Mechanism

Using scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS), the morphology observations and composition analtyses of a T23 steel oxidized in water vapor for 10~150min at 600°C were investigated, to study the initial formation mechanism. The result showed that the initial oxidation film was changed from acicular to flake shape. The second oxidation film layer appeared after oxidation for 40 min, and obvious double oxidation film structure was formed after 150 min with inner Cr-rich protective isometric crystal and outer Fe primarily columnar crystal.The oxide was Fe-rich phase in the whole oxidation process.

Room‐Temperature Meniscus Coating of >20% Perovskite Solar Cells: A Film Formation Mechanism Investigation

2019 ◽  
Vol 29 (25) ◽  
pp. 1900092 ◽  
Author(s):  
Hanlin Hu ◽  
Zhiwei Ren ◽  
Patrick W. K. Fong ◽  
Minchao Qin ◽  
Danjun Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Formation Mechanism ◽  
Room Temperature ◽  
Film Formation ◽  
Perovskite Solar Cells ◽  
Film Formation Mechanism

Effects of Resin Blend and Solvent on Film Formation Mechanism of Cationic Electropaint System

2003 ◽  
Vol 150 (4) ◽  
pp. C251 ◽  
Author(s):  
Yo-ichiro Suzuki ◽  
Hirokazu Fukui ◽  
Kazuyo Tsuchiya ◽  
Satoru Arita ◽  
Yukio H. Ogata
Keyword(s):  
Formation Mechanism ◽  
Film Formation ◽  
Film Formation Mechanism

KINETICS OF THE OXIDATION OF TITANIUM

1950 ◽  
Vol 28b (2) ◽  
pp. 60-72 ◽  
Author(s):  
L. M. Pidgeon ◽  
W. A. Alexander
Keyword(s):  
Low Temperatures ◽  
Oxidation Process ◽  
Film Formation ◽  
Surface Film ◽  
Diffusion Constant ◽  
Initial Oxidation ◽  
Temperature Range ◽  
Logarithmic Equation ◽  
Kinetics Of ◽  
And Diffusion

The rates of oxidation of titanium powder and sintered bar have been investigated in the temperature range 25° to 550 °C. at pressures of 2 and 20 cm. oxygen maintained constant throughout each experiment. It has been shown that the oxidation process can be divided into two mechanisms, viz., the formation of a thin surface film and diffusion of oxide into the metal. The surface film formation at low temperatures follows the logarithmic equation:[Formula: see text]on vacuum annealed metal surface. The diffusion process at higher temperatures is described by the equation:[Formula: see text]after the initial oxidation. This equation leads to preliminary values of the diffusion constant of the order of 10 × 10−8 cm2. per min. in the temperature range 463° to 565 °C.

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