| The Hot Corrosion Performance of NiCr-Cr_3C_2 Cermet Coating to Boiler Tube |
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| 作者姓名： | 丁彰雄 |
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| 作者单位： | Wuhan University |
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| 摘 要： | 1 IntroductionInboilers ,waterwalltubes ,superheatertubes ,economizertubesandreheatertubesareexposedtoverysevereenvironment ,andthehightemperatureoxidation ,hotcorrosion ,abrasiveanderosiveweararerecognizedasthemainfactorscausingthehighwastageofboilertubes .Theovertemperatureofboilertubeswouldacceleratetheiroxidationandcorrosionandfinallyleadthetubestobebroken .Therearevariousmethodstoreducetubewast age ,including :reducinggasvelocities ,changingfuel,installingtubeshields ,changingtubemateria…
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The Hot Corrosion Performance of NiCr-Cr_3C_2 Cermet Coating to Boiler Tube |
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| DING Zhang-xiong TU Guo-fu Wuhan University of Technology, Wuhan Steel Electricity Co. Ltd.The Hot Corrosion Performance of NiCr-Cr_3C_2 Cermet Coating to Boiler Tube[J].Journal of Wuhan University of Technology. Materials Science Edition,2004(Z1). |
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| Authors: | DING Zhang-xiong TU Guo-fu Wuhan University of Technology Wuhan Steel Electricity Co Ltd |
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| Affiliation: | DING Zhang-xiong 1) TU Guo-fu 2) 1)Wuhan University of Technology; 2)Wuhan Steel Electricity Co. Ltd |
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| Abstract: | Three kinds of NiCr-Cr 3C 2 cermet coatings were designed and deposited by the subsonic velocity flame spraying, and their performances of hot corrosion performance were evaluated in comparison with 102G, 20G boiler tube steel, FeCrAl, NiCrTi, Ni50Cr and NiCrAlMoFe-Cr 3C 2 coatings, which are widely used at present for protection of boiler tubes. Meanwhile,the influence of sealer on the hot corrosion resistance of various coatings and the mechanisms of coating corrosion were explored. |
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| Keywords: | hot corrosion performance NiCr-Cr 3C 2 cermet coating boiler tube |
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