Hot corrosion behaviour of different Cr3C2–NiCr coatings on boiler tube steel at elevated temperature
| Autor: | Khushdeep Goyal, Karanjit Singh, Rakesh Goyal |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Mechanical Engineering Metallurgy Weight change Boiler (power generation) 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology Geotechnical Engineering and Engineering Geology 01 natural sciences Corrosion Superalloy Coating Mechanics of Materials 0103 physical sciences engineering Tube furnace Electrical and Electronic Engineering Molten salt 0210 nano-technology Thermal spraying Civil and Structural Engineering |
| Zdroj: | World Journal of Engineering. 16:452-459 |
| ISSN: | 1708-5284 |
| DOI: | 10.1108/wje-02-2019-0049 |
| Popis: | Purpose This paper aims to investigate hot corrosion behaviour of different Cr3C2–NiCr coatings on boiler tube steel. Design/methodology/approach High velocity oxy fuel technique has been used to deposit different coatings on commercially available ASTM-SA213-T22 boiler tube steel. The hot corrosion studies have been performed in molten salt environment at 900°C temperature in silicon tube furnace in laboratory. Findings The results showed that uncoated superalloy suffered intense spalling and the weight change was massive during each cycle on studies of hot corrosion 900°C. The 100 per cent NiCr and 10 per cent (Cr3C2) – 90 per cent (NiCr) coatings provided better protection to T22 steel against the hot corrosion because of the formation of Ni and Cr3C2 layers. Originality/value In this research a variety of coatings have been used. This research work has been aimed to investigate the hot corrosion behavior of Boiler Steel b with different Cr3C2–NiCr coatings, under molten salt environment in Silicon tube furnace at 900°C, under cyclic conditions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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