Abstract In the present study, Ti6Al4V spherical powders were prepared by supreme-speed plasma rotating electrode process and the particle size fit log-normal distribution. The average diameter of the powders was successfully determined by a model developed in this work, suggesting that the particle size distribution is mainly affected by the rotating speed. The log-normal distribution factor of the particle size distribution maintains stable as the rotating speed ω varies. The particle size distribution indicates that the main atomization mode of Ti6Al4V under supreme-speed plasma rotating electrode process is of the characteristics of direct drop formation. The mechanical properties of the samples prepared by selective laser melting of Ti6Al4V powders were characterized, indicating that such Ti6Al4V samples with isotropy structure exhibit high yield strength and good ductility.

中文翻译：

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超高速等离子旋转电极工艺选区激光熔化Ti6Al4V粉末简介

摘要 本研究采用超高速等离子旋转电极工艺制备Ti6Al4V球形粉末，粒径拟合对数正态分布。在这项工作中开发的模型成功地确定了粉末的平均直径，这表明粒度分布主要受转速的影响。随着转速 ω 的变化，粒度分布的对数正态分布因子保持稳定。粒径分布表明，超高速等离子旋转电极工艺下Ti6Al4V的主要雾化方式具有直接液滴形成的特点。对 Ti6Al4V 粉末选区激光熔化制备样品的力学性能进行表征，