The effect of Diamond Like Carbon coating on the Solid Particles Erosion resistance of grade 410 stainless steel
The effect of Diamond Like Carbon coating on the Solid Particles Erosion resistance of grade 410 stainless steel
复制标题
类金刚石碳涂层对410级不锈钢耐固体颗粒侵蚀性能的影响
DOI：
10.1016/j.wear.2022.204584
复制
发表时间：
2022
期刊：
影响因子：
5
通讯作者：
Hamza A. Al
中科院分区：
文献类型：
--
作者：
Maitham Mohammed Al;Hamza A. Al
固体颗粒高速撞击造成的表面损伤是许多应用中的一个重要问题。硬化和涂层被广泛采用以提高表面电阻。类金刚石碳（DLC）涂层是通过高度先进的方法生产的，使其成为最硬的涂层之一，与基材的结合得到改善。研究了等离子体辅助化学气相沉积（PACVD）技术在410级不锈钢（SS 410 H）表面制备类金刚石膜（DLC）的抗固体颗粒冲蚀（SPE）性能。结果与SS 410 H和SS 410没有硬化进行了比较。使用ASTM G 76气体喷砂测试仪来确定在（30，50，70）米/秒的速度和（30，45，60，70，90）度的角度下的SPE抗性，由侵蚀速率（ER）表示。结果用于提供修改后的Sheldon-Kanher（SK）ER模型所需的常数，以估计在任何速度和冲击角度下的ER，最重要的是，对于DLC涂层。对于所测试的材料，观察到韧性侵蚀行为，其中ER通过增加冲击角而降低，这证明DLC涂层在SPE下不表现为脆性材料。DLC涂层表现出最高的耐SPE性能，提高了42-65%，速度和冲击角度对提高率几乎没有显著影响。而SS 410 H显示出6-44%的改善，随着速度和角度的变化而显著波动。这项研究突出了DLC涂层在接触固体颗粒的机械部件中的潜在用途，例如涡轮机/压缩机叶片。
Surface damage by solid particles impacting at high speed is a significant problem for many applications. Hardening and coating are widely adopted to improve surface resistance. The Diamond-Like Carbon (DLC) coating is produced by highly advanced methods that make it one of the hardest coatings with improved bonding to the substrate. In this study, the Solid Particles Erosion (SPE) resistance of the DLC coating deposited by Plasma Assisted Chemical Vapor Deposition (PACVD) on hardened stainless steel grade 410 (SS 410H) was investigated. The results were compared to the SS 410H and SS 410 without hardening. The ASTM G 76 gas blast tester was used to find the SPE resistance, represented by Erosion Rate (ER), under velocities of (30, 50, 70) meter per second and angles of (30, 45, 60, 70, 90) degrees. The results were used to provide the constants needed for a modified Sheldon-Kanher (SK) ER model to estimate the ER at any velocity and impact angle for the tested materials, most importantly, for the DLC coating. A ductile erosion behavior was observed for the tested materials where the ER is reduced by increasing the impact angle which proves that the DLC coating does not behave as a brittle material under SPE. The DLC coating showed the highest SPE resistance with improvement of 42–65% with almost no significant effect of the velocity and impact angle on the improvement rate. While the SS 410H showed an improvement of 6–44% with a significant fluctuation with the variation of velocities and angles. This study highlights the potential usage of DLC coating in mechanical parts exposed to solid particles, such as turbine/compressor blades.