What question did this study set out to answer?

The aim is to assess the impact of thermal spray coatings on reducing slurry-based erosion in hydrokinetic turbines.

Application of thermally sprayed coating in hydrokinetic turbines to reduce the slurry-based erosion: A review

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Review examines thermal spray coating effects on reducing slurry erosion in hydrokinetic turbines, suggesting practical solutions.

The aim is to assess the impact of thermal spray coatings on reducing slurry-based erosion in hydrokinetic turbines.
Investigated key erodent factors influencing erosion rates in HKT components.
Compiled data on slurry properties from major Himalayan rivers.
Analyzed the effects of erosion on turbine efficiency and power output.
Identified optimal coating strategies for high-sediment conditions.
Compared various thermal spray coating techniques for their erosion resistance.
Findings suggest that thermal spray coating provides significant resistance to slurry erosion.
Average hardness of around 7 Mohr's value is sufficient to cause surface erosion.
Erosion rates vary based on sediment concentration, particle size, and impact angle.
High velocity oxy-fuel coatings showed improved performance against slurry erosion.

Mali et al. (2026) studied this question.

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