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高速電弧噴涂FeMnCr/Cr3C2涂層抗高溫沖蝕磨損性能
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浙江省科技廳一般工業(yè)項目(2009C31129)資助


High-Temperature Erosion Behavior of High-Velocity Arc-Spraying FeMnCr/Cr3C2 Coatings
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    摘要:

    針對超臨界鍋爐管道的嚴重沖蝕磨損問題，采用高速電弧噴涂技術在20鋼表面制取耐磨涂層，并研究其高溫沖蝕磨損特性。采用場發(fā)射掃描電子顯微鏡和X射線能譜分析等方法探討涂層的沖蝕磨損規(guī)律。結果表明，F(xiàn)eMnCr/Cr3C2涂層最大沖蝕率出現(xiàn)在沖擊角60°附近，表現(xiàn)出半塑性沖蝕磨損特征；其耐高溫沖蝕性與FeCrNi/Cr3C2涂層相近，明顯優(yōu)于20鋼

    Abstract:

    FeMnCr/Cr3C2 cored wire was developed for building up the erosion-resistant coatings of super-critical boiler pipes by means of High-Velocity Arc Spraying. The high-temperature erosion behaviors at different impact angles of FeMnCr/Cr3C2 coatings were studied and compared with those of FeCrNi/Cr3C2 coatings and 20 steel by optical microscopy, scanning electron microscopy and energy dispersion spectrum analysis. Results show that FeMnCr/Cr3C2 coatings have the maximum erosive rate when the impact angle is about 60° due to the semi-brittleness erosion mechanism for FeMnCr/Cr3C2 coatings. The erosion resistance of FeMnCr/Cr3C2 coatings is closed to that of FeCrNi/Cr3C2 coatings, and obviously better than that of 20 steel.

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羅來馬,劉少光,俞 佳,趙 琪,孫乃榮,酈 劍.高速電弧噴涂FeMnCr/Cr3C2涂層抗高溫沖蝕磨損性能[J].稀有金屬材料與工程,2010,39(2):234~237.[Luo Laima, Liu Shaoguang, Yu Jia, Zhao Qi, Sun Nairong, Li Jian. High-Temperature Erosion Behavior of High-Velocity Arc-Spraying FeMnCr/Cr3C2 Coatings[J]. Rare Metal Materials and Engineering,2010,39(2):234~237.]
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  • 收稿日期:2009-03-06
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