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2 常见锅炉用钢主要合金元素含量及作用[62,96~100] (mass fraction / %)
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Table 2 Main alloy element chemical compositions and functions of steels for boiler[62,96-100]
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Steel | C | Cr | Mo | V | Nb | Ni | Other |
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20G[96] | 0.17-0.24 | - | - | - | - | - | - | 12CrMoVG[96] | 0.08-0.15 | 0.90-1.20 | 0.25-0.35 | 0.15-0.30 | - | - | - | T11[98] | 0.05-0.15 | 1.00-1.50 | 0.44-0.65 | - | - | - | - | T23[98] | 0.04-0.10 | 1.90-2.60 | 0.05-0.30 | 0.20-0.30 | 0.02-0.08 | - | W (1.45-1.75) | | | | | | | | Improve red-hardness and | | | | | | | | heat resistance | T24[62] | 0.05-0.10 | 2.20-2.60 | 0.90-1.10 | - | - | | Ti (0.05-0.10) | | | | | | | | Refine the grain and reduce | | | | | | | | cold shortness | T91[98] | 0.08-0.12 | 8.00-9.50 | 0.85-1.05 | 0.18-0.25 | 0.06-0.10 | - | - | T92[97] | 0.07-0.13 | 8.50-9.50 | 0.30-0.60 | 0.15-0.25 | 0.04-0.09 | - | W (1.50-2.00) | TP304[99] | ≤ 0.08 | 18.00-20.00 | - | - | - | 8.00-11.00 | - | TP347[99] | ≤ 0.10 | 17.00-19.00 | - | - | 0.80-1.50 | 9.00-13.00 | - | Super304H[97] | 0.07-0.13 | 17.00-19.00 | - | - | 0.30-0.60 | 7.50-10.50 | Cu (2.50-3.50) | | | | | | | | Improve strength and | | | | | | | | toughness and corrosion | | | | | | | | resistance | HR3C[100] | ≤ 0.10 | 24.00-26.00 | - | - | 0.20-0.60 | 19.00-22.00 | - |
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