Study on liquid-solid jet erosion characteristics of 316L stainless steel

• Published in: Journal of mechanical science and technology Vol. 37; no. 4; pp. 1871 - 1882
• Main Authors: Wang, Guan, Gao, Qianfeng, Kou, Linyuan, Zhang, Pei, Wang, Wenhui, Deng, Jianfei, Zhu, Xuejun
• Format: Journal Article
• Language: English
• Published: Seoul Korean Society of Mechanical Engineers 01.04.2023; Springer Nature B.V; 대한기계학회
• Subjects: Austenitic stainless steels; Control; Dynamical Systems; Engineering; Erosion mechanisms; Erosion rates; Failure mechanisms; Failure prevention; Impact damage; Industrial and Production Engineering; Kinematics; Kinetic energy; Material properties; Mechanical Engineering; Multiphase flow; Numerical methods; Original Article; Particle impact; Plowing; Potential energy; Stainless steel; Two phase flow; Vibration; 기계공학; Erosion angle; Numerical simulation; 316L stainless steel; Multiphase flow characteristics; Erosion mechanism
• ISSN: 1738-494X; 1976-3824
• DOI: 10.1007/s12206-023-0325-9

The essence of erosion is the dynamic damage and material loss process of a material caused by particle impact. The failure mechanism of erosion is the result of the interaction of multiphase flow, particle characteristics, material properties, particle impact process, and other factors. This paper employs experimental and numerical simulation methods to investigate the erosion behavior of a solid-liquid two-phase flow of 316L stainless steel jet from the angle of erosion, to explain the erosion behavior from both macroscopic and microscopic perspectives. The results discovered that the kinetic energy of the fluid is converted into pressure potential energy, which changes the kinematic characteristics of the particles and influences how they erode. The particles erode the target material by plowing and impacting at various erosion angles, and the erosion rate exhibits an increasing-decreasing-increasing tendency as the erosion angle increases, the 45° corresponds to the maximum erosion rate. Due to the particles to harden the target surface, the erosion effect is diminished in the time dimension. Comparing to high erosion angles, the reduction rate of the erosion rate in the late experiment stage is small for slow erosion angles. In the last 3 hours of the experiment, the total erosion of 316L stainless steel at 90° erosion angle was only 35 %. This provides a theoretical foundation for failure prevention in transport components containing solid particles.