The influence mechanism of flow-interface-reaction interaction on the erosion-corrosion synergistic damage of liquid-solid two-phase flow

Key Points

• This research aims to understand the interactions between flow, particle impact, ion transfer, and material damage in hydraulic machinery.
• Utilized multi-component weight loss analysis and electrochemical testing on 06Cr13Ni5Mo stainless steel
• Conducted micro-damage morphology and structural characterization
• Analyzed the effect of flow velocity on the dominance of various damage mechanisms
• At low flow velocity, particle impact and wear-corrosion synergy dominate damage mechanisms
• As flow velocity increases, the synergistic effect becomes more significant, leading to a positive feedback mechanism
• At high flow velocity, mechanical wear becomes the dominant damage mode, and wear-corrosion interactions decouple.