296 / 2024-03-15 00:00:33

Influence of pulse-plasma (plasma-detonation treatment) on the structure and characteristics of detonation ceramic-metal coatings

detonation coatings,pulse-plasma treatment,nanostructural state

4、智能化装备技术 > 1、智能矿山装备技术

The study proposes a multi-chamber detonation device for depositing high-quality coatings and subsequent modification, ensuring low energy consumption and high material efficiency (up to 90%). The technology targets wear-resistant, heat-shielding, and corrosion-resistant coatings on various materials, including those with complex shapes and thin walls. The research aims to understand the effects of pulse-plasma treatment on the structure and properties of detonation coatings. Comprehensive investigations reveal that this treatment forms a nanostructural state in coatings, enhancing their strength and crack resistance. Analytical evaluations highlight the importance of optimal structural-phase composition and uniform distribution of strengthening phases for improved properties. Plasma-detonation modification increases coating hardness and density by facilitating defect healing, accelerated mass transfer, and increased particle concentration. The findings advocate for a duplex technology combining cumulative detonation spraying and plasma detonation modification for creating coatings suited for extreme operating conditions.