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首页> 外文期刊>Journal of Materials Engineering and Performance >The Effect of Flowing Velocity and Impact Angle on the Fluid-Accelerated Corrosion of X65 Pipeline Steel in a Wet Gas Environment Containing CO2
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The Effect of Flowing Velocity and Impact Angle on the Fluid-Accelerated Corrosion of X65 Pipeline Steel in a Wet Gas Environment Containing CO2

机译：流动速度和冲击角对含二氧化碳湿气体环境X65管线钢流体加速腐蚀的影响

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摘要

This study investigated the effect of flowing velocity and impact angle on the fluid-accelerated corrosion (FAC) of X65 pipeline steel in a wet CO2-containing environment by corrosion morphology analysis, electrochemical measurement, and hydromechanical numerical analysis. It has been found that the corrosion behavior was controlled by the ion diffusion rate and shear stress due to the flowing gas. With an increase in the flowing velocity, the pitting corrosion initially decreased and then increased when the flowing velocity exceeded 14 m/s; this increase is caused by the augmentation of shear stress. When the impact angle decreased, the position of serious corrosion gradually moved outwards.
机译：本研究通过腐蚀形态分析，电化学测量和流体力学数值分析研究了流动速度和冲击角对湿二氧化碳钢的流体加速腐蚀（FAC）的影响。 已经发现，由于流动的气体，通过离子扩散速率和剪切应力来控制腐蚀行为。 随着流动速度的增加，蚀腐蚀最初减小，然后在流动速度超过14米/秒时增加; 这种增加是由增强剪切应力引起的。 当冲击角下降时，严重腐蚀的位置逐渐向外移动。

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