Innovative Ni-Cr-Re coatings with enhanced corrosion and erosion resistance for high temperature applications in power generation industry - NICRRE

Project summary

The main objective of the NICRRE project is to develop new coatings for steel combustion boilers in power generation plants and to identify technically suitable and cost effective techniques of their deposition. These coatings should mitigate corrosion and erosion in boiler’s piping and increase its operating temperature. Two innovative material solutions are proposed: NiCrRe and NiCrRe/Al2O3 coatings to be deposited by plasma spraying, high velocity oxygen fuel spraying, and direct laser deposition. The project will encompass coatings development, characterization of microstructure and properties, modelling, fabrication and testing of demonstrators in a real combustion boiler. The most important innovation originating from this project will be a new thin coating technology for boilers (target thickness of 1 mm). It will result in an extension of boiler’s inter-haul intervals, cost reduction of regular inspections, increase of electric energy and heat production.