Metal loss and corrosion attack of FeCrAl overlay welds on evaporator tube shields of a waste-fired power plant
| العنوان: | Metal loss and corrosion attack of FeCrAl overlay welds on evaporator tube shields of a waste-fired power plant |
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| المؤلفون: | Valiente Bermejo, Maria Asuncion, Moya Nunez, Alice, Norling, Rikard |
| المصدر: | Materials and corrosion - Werkstoffe und Korrosion. |
| مصطلحات موضوعية: | Aluminum alloys, Binary alloys, Chromium alloys, Corrosion resistance, Corrosion resistant alloys, Erosion, Fossil fuel power plants, Heat resistance, Iron alloys, Nickel alloys, Roofs, Ternary alloys, Textures, Waste incineration, Welds, Cladding material, Corrosion attack, FeCrAl alloys, Kanthal, Metal loss, Metal loss rate, Overlay welding, Power- generations, Waste-fired power plant, Weld cladding, Welding |
| الوصف: | Three FeCrAl alloys (APMT, EF100 and EF101) from Kanthal® and the reference Ni-Cr Alloy 625 were used as weld cladding materials on tube shields in the evaporator tube bank of a waste-fired combined heat and power plant. For each alloy type, the overlay welded tube shields were placed in both roof and floor positions within the evaporator for 6 months. The metal-loss rate, the microstructure and hardness of the overlay welds before and after exposure and the corrosion products were analysed. The results showed higher metal-loss rates in the welds placed in the roof position, confirming heterogeneities in the evaporator bank environment. Alloys were ranked from higher to lower erosion–corrosion resistance as follows: APMT ≈ Alloy 625 > EF101 > EF100. The analysis of the corrosion attacks showed a significant variation among the alloys, from a primarily homogeneous corrosion attack on APMT to intergranular corrosion in EF100 and pit formation in EF101. |
| وصف الملف: | electronic |
| URL الوصول: | https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-72874 https://doi.org/10.1002/maco.202314124 https://ri.diva-portal.org/smash/get/diva2:1854724/FULLTEXT01.pdf |
| قاعدة البيانات: | SwePub |
| تدمد: | 09475117 |
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| DOI: | 10.1002/maco.202314124 |