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以瀝青為前驅(qū)體制備TiC/FeCrNi反應(yīng)火焰噴涂復(fù)合涂層
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TB333

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河南杰出人才創(chuàng)新基金資助項(xiàng)目（0421001000）


Fabrication of TiC/FeCrNi Composite Coatings by Reactive Flame Spray Using Asphalt as Carbonaceous Precursor
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    摘要:

    以鈦鐵粉、CrFe粉、羰基鎳粉和碳的前驅(qū)體（石油瀝青）為原料,通過前驅(qū)體碳化復(fù)合技術(shù)制備了Ti-Fe-Cr-Ni-C反應(yīng)噴涂復(fù)合粉末,并通過普通火焰噴涂成功地合成與沉積了TiC/FeCrNi復(fù)合涂層.采用XRD和SEM對(duì)噴涂粉末和涂層的相組成和顯微結(jié)構(gòu)進(jìn)行了分析,同時(shí)對(duì)涂層耐磨性能進(jìn)行了對(duì)比研究.研究結(jié)果表明：采用前驅(qū)體碳化復(fù)合技術(shù)制備的Ti-Fe-Cr-Ni-C反應(yīng)噴涂復(fù)合粉末粒度均勻、無(wú)有害相生成;所制備的TiC/FeCrNi復(fù)合涂層由不同含量TiC顆粒分布于金屬基體內(nèi)部而形成的復(fù)合強(qiáng)化片層疊加而成,TiC顆粒呈納米級(jí);基體由（Fe,Cr）和Cr0.19Fe0.7Ni0.11兩相組成;相同條件下,所獲TiC/FeCrNi復(fù)合涂層磨損體積大約是常規(guī)火焰噴涂Ni60涂層的1/8.

    Abstract:

    Ti-Fe-Cr-Ni-C composite coatings were deposited with a new process of Reactive Flame Spray (RFS) from the powders synthesized by the process of precursor-carbonization-composite, in which ferrotitanium and asphalt were used as raw materials. XRD and SEM were employed to analyze the phase composition and microstructure of the composite powders and coatings. The wear resistance of the coating was tested. The results show that the TiC/FeCrNi composite coating by RFS is composed of layers in which the round nanoscale TiC particles are dispersed within a metal matrix. The matrix consists of Cr0.19Fe0.7Ni0.11 and (Fe, Cr). Under the same condition of wear testing, the wear volume of the TiC/FeCrNi composite coating is one eighth of that of the Ni60 coating by normal flame spray.

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劉慧淵 黃繼華.以瀝青為前驅(qū)體制備TiC/FeCrNi反應(yīng)火焰噴涂復(fù)合涂層[J].稀有金屬材料與工程,2006,35(7):1061~1064.[Liu Huiyuan, Huang Jihua. Fabrication of TiC/FeCrNi Composite Coatings by Reactive Flame Spray Using Asphalt as Carbonaceous Precursor[J]. Rare Metal Materials and Engineering,2006,35(7):1061~1064.]
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  • 收稿日期:2005-04-21
  • 最后修改日期:2005-04-21
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