Many critical parts such as surface parts of high-speed trains, bins and hoppers, and pipes, bends and valves in material transportation applications as well as a helicopter, mixer, and turbine blades, which can be exposed to particle wear due to the application environment, can be easily manufactured today due to the advances in 3D printing technology. For this reason, an experimental study was carried out to determine the particle erosion behavior of 316L stainless steel parts built by the laser melting method, which is one of the 3D printing technologies. The rectangular plate samples produced with various laser manufacturing parameters were subjected to particle erosion tests at different impingement angles in accordance with the ASTM G76 standard at 140 m/s impact speed. The results showed that the erosion behavior develops in a characteristic similar to the wrought sample, and laser parameters play an efficient role. For example, the porosity ratio decreases at low scanning speeds, resulting in significant improvements in erosion behavior. Also, it was found that the particle erosion behavior of the 3D printed parts could be improved in a serious amount by applying a heat treatment process. Consequently, the obtained results in this study promotes the more comprehensive works regarding the optimization of several laser manufacturing parameters such as scan speed, build direction, laser power, hatch spacing, layer thickness, scan strategy and laser exposure time to obtain the best particle erosion behavior and determination of the most suitable materials among the several others which can be used in 3D printing.

许多关键部件，例如高速列车的表面部件、料箱和料斗，以及材料运输应用中的管道、弯头和阀门以及直升机、搅拌机和涡轮叶片，这些部件可能因应用而受到颗粒磨损由于 3D 打印技术的进步，今天可以轻松制造环境。为此，开展了一项实验研究，以确定通过激光熔化法制造的 316L 不锈钢零件的颗粒侵蚀行为，这是 3D 打印技术之一。使用各种激光制造参数生产的矩形板样品按照 ASTM G76 标准在 140 m/s 的冲击速度下在不同的冲击角度下进行颗粒侵蚀测试。结果表明，侵蚀行为的发展具有与锻造样品相似的特征，并且激光参数发挥了有效的作用。例如，孔隙率在低扫描速度下会降低，从而显着改善侵蚀行为。此外，还发现通过应用热处理工艺可以显着改善 3D 打印部件的颗粒侵蚀行为。因此，本研究中获得的结果促进了关于优化几个激光制造参数的更全面的工作，如扫描速度、构建方向、激光功率、孵化间距、层厚度、扫描策略和激光曝光时间，以获得最佳的粒子侵蚀行为和确定可用于 3D 打印的其他几种材料中最合适的材料。