Erosion is the most prominent issue in several engineering applications such as hydropower plants, steam/jet turbines, aircraft engines and chemical processing equipment. In the present study, slurry jet erosion tests were performed on the SS-316 with variation in impingement angle (30°, 90°), velocity (14.7, 30.6 m/s) and slurry concentration (0.5, 2.28%). SiO₂ particles of size below 300 microns were used as the erodent. For this objective, design of experiments (DOE) approach utilizing Taguchi’s orthogonal arrays was selected to test the specimen on a slurry jet-type erosion test rig. A precision balance having least count of 0.1 mg was used to determine the mass loss of target material during the experiment. Analysis of variance (ANOVA) was applied to the measured erosion rate and surface roughness. Among all three control parameters, the impingement angle was found to be most significant parameter followed by impact velocity and solid particle concentration for both erosion rate and surface roughness. The scanning electron microscope (SEM) was used to analyze the worn-out surfaces. The multi-response optimizer indicating the optimum input parameter settings (angle: 90°, velocity: 14.7 m/s, concentration: 0.5%) will minimize erosion rate as well as surface roughness.

在一些工程应用中，例如水力发电厂，蒸汽/喷气涡轮，飞机发动机和化学处理设备，侵蚀是最突出的问题。在本研究中，在冲击角（30°，90°），速度（14.7、30.6 m / s）和浆液浓度（0.5、2.28％）变化的情况下，对SS-316进行了浆液喷射侵蚀试验。二氧化硅₂小于300微米的颗粒用作侵蚀剂。为此，选择了使用田口正交阵列进行实验设计（DOE）的方法，以在泥浆喷射式侵蚀试验台上测试样品。使用最小计数为0.1 mg的精密天平确定实验过程中目标材料的质量损失。方差分析（ANOVA）被应用于测得的腐蚀速率和表面粗糙度。在所有三个控制参数中，对于腐蚀速率和表面粗糙度，发现撞击角度是最重要的参数，其次是冲击速度和固体颗粒浓度。使用扫描电子显微镜（SEM）分析磨损的表面。多响应优化器可指示最佳输入参数设置（角度：90°，速度：14.7 m / s，