发电锅炉材料与防护涂层的磨蚀机制与研究展望
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张世宏, 胡凯, 刘侠, 杨阳
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Corrosion-Erosion Mechanism and Research Prospect of Bare Materials and Protective Coatings for Power Generation Boiler
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ZHANG Shihong, HU Kai, LIU Xia, YANG Yang
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表6 不同陶瓷涂层热腐蚀性能比较[124~131]
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Table 6 Comparison of hot corrosion rates for different ceramic coatings[124-131]
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| Coating | Substrate | Coating | Corrosion | Cycle | Molten salt | Hot corrosion rate |
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| time | mg·cm-2 |
|---|
| | preparation | Temperature | composition | | h | Coating | Substrate | | | process | oC | (mass fraction) | | Al2O3[124] | 304L | PS | 900 | 168 | Actualwaste | Peeling | - | | | | | | energy furnace | | | | Cr2O3[125] | T22 | PS | 850 | 25 | Na2SO4-40%V2O5 | 50.93 | 65.16 | | Cr2O3[126] | T11 | D-gun | 900 | 50 | Na2SO4-60%V2O5 | 24.00 | 25.00 | | NiCrAlCo-Y2O3 / | 309 s.s. | PS | 600 | 168 | 10.2%KCl + | - | - | | ZrO2-8Y2O3[127] | | | | | 11.5%Na2CO3 + | | | | | | | | 72.9%Na2SO4 + | | | | | | | | 4.4%K2SO4 | | | | NiCr/Cr2O3-50Al2O3[128] | T22 | D-gun | 900 | 50 | Na2SO4-60%V2O5 | 10.50 | 364.17 | | Superfer 800H | | | | | 21.55 | 26.58 | | NiCr/Al2O3-40TiO2[129] | Inconel 625 | PS | 800 | 50 | K2SO4-60%NaCl | 7.00 | 15.50 | | NiCr/Al2O3 | T11 | PS | 900 | 1000 | Actual coal boiler | 113.27 | 135.96 | | NiCr/Al2O3-4CNT[130] | | | | | | 11.27 | 135.96 | | ZrO2-Y2O3-6CNT[131] | T91 | PS | 750 | 50 | Na2SO4-60%V2O5 | 3.54 | 70.12 |
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