Erosion-corrosion behaviors of high velocity arc sprayed Fe−Al/Cr3C2 coating

2006 ◽  
Vol 21 (3) ◽  
pp. 29-31 ◽  
Author(s):  
Xu Weipu ◽  
Xu Binshi ◽  
Zhang Wei ◽  
Wu Yixiong
Keyword(s):  
High Velocity ◽  
Erosion Corrosion ◽  
Corrosion Behaviors

scholarly journals Simulation Analysis of Erosion–Corrosion Behaviors of Elbow under Gas-Solid Two-Phase Flow Conditions

Lubricants ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 92
Author(s):  
Qunfeng Zeng ◽  
Wenchuang Qi
Keyword(s):  
Chemical Reaction ◽  
Simulation Analysis ◽  
Electrochemical Corrosion ◽  
Simulation Software ◽  
Solid Particles ◽  
Two Phase ◽  
Particle Count ◽  
Coal Gas ◽  
Erosion Corrosion ◽  
Corrosion Behaviors

In the production and gathering process of coal gas, the complex composition of the coal gas, harsh environments, the complex medium, and high content of solid particles in slurry cause the equipment malfunctions and even failure because of erosion and corrosion. In the present study, COMSOL multi-physics finite element simulation software is used to simulate the erosion–corrosion behaviors of elbow in key chemical equipments. The electrochemical corrosion, solid particle erosion, chemical reaction, and turbulent flow are coupled together. The particle count method is proposed to clarify the erosion phenomenon. The simulation results show that particles with high turbulent intensity hit the wall of elbow directly, which forms a slanted elliptical erosion zone on the extrados surface at 40°–50°. The chemical reaction in turbulence has a difference in the concentration distribution of substances, and this phenomenon leads to different magnitudes of the corrosion current densities in the tube. Moreover, 1/6 released particles hit the extrados surface of the elbow. These findings are beneficial to understand the erosion–corrosion phenomena and design the elbow in key chemical equipment.

Effect of the sea mud on erosion–corrosion behaviors of carbon steel and low alloy steel in 2.4% NaCl solution

Wear ◽  
2008 ◽  
Vol 264 (11-12) ◽  
pp. 1051-1058 ◽  
Author(s):  
Y.G. Zheng ◽  
H. Yu ◽  
S.L. Jiang ◽  
Z.M. Yao
Keyword(s):  
Carbon Steel ◽  
Alloy Steel ◽  
Low Alloy Steel ◽  
Nacl Solution ◽  
Erosion Corrosion ◽  
Sea Mud ◽  
Corrosion Behaviors
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