scholarly journals Influence of Zinc and Aluminum Simultaneous Injection on Corrosion Behavior and Semiconducting Properties of Oxide Film on 304L

2020 ◽  
pp. 9874-9887
Author(s):  
Shenghan Zhang ◽  
Keyword(s):  
Oxide Film ◽  
Corrosion Behavior ◽  
Simultaneous Injection ◽  
Semiconducting Properties

Corrosion Behavior of High-Strength Low-Alloy Steel in High-Temperature Water with Zinc and Aluminum Simultaneous Injection

CORROSION ◽  
10.5006/3545 ◽  
2020 ◽  
Vol 76 (10) ◽  
pp. 918-929
Author(s):  
Shenghan Zhang ◽  
Chenhao Sun ◽  
Yu Tan
Keyword(s):  
Oxide Film ◽  
Corrosion Behavior ◽  
Electrochemical Impedance ◽  
Oxide Films ◽  
High Strength ◽  
Corrosion Current ◽  
Pressurized Water ◽  
Simultaneous Injection ◽  
Primary Water ◽  
Photocurrent Measurement

Oxide films were formed on A508-3 steel in simulated pressurized water reactor (PWR) primary water at the temperature of 561 ± 1 K for 168 h with zinc and/or aluminum injection. Corrosion behaviors of oxide films were analyzed by electrochemical polarization, electrochemical impedance spectroscopy, Mott-Schottky plots, photocurrent measurement, scanning electronic microscopy, and x-ray diffraction. The results showed that zinc and aluminum simultaneous injection technology decreased the corrosion current density, increased the impedance value, made the oxide film more compact, and affected the semiconductor properties of the oxide film. The increase in zinc concentration improved the corrosion resistance to some extent. ZnAl2O4 phase, with extremely low solubility and high stability, had been detected in the oxide film; this substance changed the composition of the oxide film and affected the corrosion behavior of A508-3 steel.

scholarly journals Study on Corrosion Behavior of Ultrafine-Grained Ti-6Al-7Nb Fabricated by Equal Channel Angular Pressing

Metals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 950 ◽  
Author(s):  
Zequn Yu ◽  
Yuecheng Dong ◽  
Xin Li ◽  
Jingzhe Niu ◽  
Igor Alexandrov ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Oxide Film ◽  
Equal Channel Angular Pressing ◽  
Corrosion Behavior ◽  
Photoelectron Spectroscopy ◽  
Electrochemical Impedance ◽  
Electrochemical Measurement ◽  
Coarse Grained ◽  
Angular Pressing ◽  
Ultrafine Grained

The aim of this study was to investigate the corrosion resistance of ultrafine-grained (UFG) Ti-6Al-7Nb fabricated by equal channel angular pressing (ECAP) and coarse-grained (CG) Ti- 6Al- 7Nb. The microstructure of each specimen was investigated by the electron backscattered diffraction (EBSD) method. The corrosion behavior of each specimen was determined by electrochemical measurement in Ringer’s solution. The surface corroded morphologies and oxide film formed on Ti-6Al-7Nb alloy after electrochemical measurement were investigated by scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS). EBSD investigation shows that the grain size of UFG Ti-6Al-7Nb decreased to ~0.4 µm, accompanied by low angle grain boundaries (LAGBs) accounting for 39%. Potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) results indicated that UFG Ti-6Al-7Nb alloy possessed a better corrosion resistance. The surface corroded morphologies revealed many small and shallow corrosion pits, which can be attributed to the good compactness of the oxide film and a rapid self- repairing ability of the UFG Ti-6Al-7Nb alloy.

The influence of liquid Pb–Bi on the anti-corrosion behavior of Fe3O4: a first-principles study

2016 ◽  
Vol 18 (11) ◽  
pp. 7789-7796 ◽  
Author(s):  
Dongdong Li ◽  
Bingyan Qu ◽  
H. Y. He ◽  
Y. G. Zhang ◽  
Yichun Xu ◽  
...  
Keyword(s):  
Oxide Film ◽  
Corrosion Behavior ◽  
First Principles ◽  
Steel Surface ◽  
First Principles Calculations ◽  
First Principles Study

In this work, the influence of Pb and Bi atoms on the anti-corrosion behavior of the oxide film (Fe3O4) formed on steel surface is investigated based on first-principles calculations.

Corrosion Behavior of Titanium Oxide Film by Surface Mechanical Attrition Treatment

2018 ◽  
Vol 10 (12) ◽  
pp. 1742-1749
Author(s):  
Tianlin Fu ◽  
Zhiwen Wang ◽  
Ruijia Diao ◽  
Xiaohua Yu ◽  
Zhentao Yuan ◽  
...  
Keyword(s):  
Oxide Film ◽  
Titanium Oxide ◽  
Corrosion Behavior ◽  
Surface Mechanical Attrition Treatment ◽  
Titanium Oxide Film ◽  
Mechanical Attrition

Corrosion behavior of hydrophobic titanium oxide film pre-treated in hydrogen peroxide solution

2010 ◽  
Vol 62 (4) ◽  
pp. 320-325 ◽  
Author(s):  
M. Wang ◽  
W. Wang ◽  
B. L. He ◽  
M. L. Sun ◽  
Y. S. Bao ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Oxide Film ◽  
Titanium Oxide ◽  
Corrosion Behavior ◽  
Hydrogen Peroxide Solution ◽  
Titanium Oxide Film
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