Abstract Solid particle erosion is important in many industrial applications including mining and production and transportation facilities in the oil and gas industry. Mechanistic modeling of erosion normally requires particle tracking to determine particle impact speed and angle and employment of erosion ratio equations which define the material mass loss as a function of impacting particle mass, velocity and angle. Particle size, shape and flow rate are other important factors that affect the erosion ratio. In this work, direct impingement erosion tests have been conducted on Stainless Steel 316 using particles with different sizes and shapes. The influence of particle flow rate on erosion test results was also considered and particle velocities were measured to ensure the impact velocities are similar for different particle sizes. It was also found that the particle flow rate could affect the relation between carrier gas velocity and the entrained particle velocity. Angular and semi-round silica sand and round glass beads are used in the experiments to study the effect of particle shape. In the sand experiments, sharpness of particles had a larger influence on the erosion ratio than particle size for particle sizes ranging from 75 μm to 600 μm. In the glass bead experiments, small broken particles were found to be embedded in the surface of the material making the analysis inconclusive.

中文翻译：

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颗粒大小、形状和颗粒流速对不锈钢腐蚀的实验研究

摘要 固体颗粒侵蚀在许多工业应用中很重要，包括石油和天然气行业的采矿、生产和运输设施。侵蚀的机械建模通常需要粒子跟踪来确定粒子撞击速度和角度，并使用侵蚀比率方程，该方程将材料质量损失定义为撞击粒子质量、速度和角度的函数。粒度、形状和流速是影响侵蚀率的其他重要因素。在这项工作中，使用不同尺寸和形状的颗粒对不锈钢 316 进行了直接冲击侵蚀测试。还考虑了颗粒流速对侵蚀试验结果的影响，并测量了颗粒速度以确保不同粒径的冲击速度相似。还发现颗粒流速会影响载气速度与夹带颗粒速度之间的关系。实验中使用角形和半圆形硅砂和圆形玻璃珠来研究颗粒形状的影响。在砂实验中，对于 75 μm 至 600 μm 的粒径范围，颗粒的锐度对侵蚀率的影响大于粒径。在玻璃珠实验中，发现小的破碎颗粒嵌入材料表面，使分析无法得出结论。对于 75 μm 至 600 μm 的粒径范围，颗粒的锐度对侵蚀率的影响大于粒径。在玻璃珠实验中，发现小的破碎颗粒嵌入材料表面，使分析无法得出结论。对于 75 μm 至 600 μm 的粒径范围，颗粒的锐度对侵蚀率的影响大于粒径。在玻璃珠实验中，发现小的破碎颗粒嵌入材料表面，使分析无法得出结论。