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高速火焰噴涂高質(zhì)量NiCoCrAlTaReSiY抗氧化涂層
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歐共體資助項目（COST 501）


Deposition of High-Quality NiCoCrAlTaReSiY Oxidation Resistance Coatings by HVOF
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    摘要:

    研究了用高速火焰噴涂(HVOF)替代低壓等離子噴涂(LPPS)沉積高質(zhì)量的MCrAlY涂層。試驗用粉料為NiCoCrAlTaReSiY，采用以煤油為燃料的K2型HVOF系統(tǒng)沉積涂層，研究噴嘴長度、噴涂工藝參數(shù)對粉末沉積工藝過程以及涂層性能的影響；測量涂層的孔隙率及氧含量，觀察涂層經(jīng)真空熱處理以及高溫空氣氧化后的顯微結(jié)構(gòu)，測量了Al、O等元素在氧化涂層中的分布。結(jié)果表明，所沉積的NiCoCrAlTaReSiY涂層具有優(yōu)越的抗氧化性。

    Abstract:

    High quality MCrAlY coatings were deposited by a high velocity oxy-fuel (HVOF) spraying process as a substitute for low pressure plasma spraying (LPPS). A kerosene-driven HVOF system K2 was used with NiCoCrAlTaReSiY as powder lot. The influences of the nozzle length and spraying parameters on the deposition process and coating properties were studied. The coating porosity and oxygen content were determined. The microstructure of the coating after vacuum heat treatment and high-temperature oxidation in air was observed. The distribution of Al and O in the coating was measured. The result shows that the obtained NiCoCrAlTaReSiY coatings have excellent oxidation resistance.

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王開圣,趙力東,趙志敏.高速火焰噴涂高質(zhì)量NiCoCrAlTaReSiY抗氧化涂層[J].稀有金屬材料與工程,2010,39(11):2027~2029.[Wang Kaisheng, Zhao Lidong, Zhao Zhimin. Deposition of High-Quality NiCoCrAlTaReSiY Oxidation Resistance Coatings by HVOF[J]. Rare Metal Materials and Engineering,2010,39(11):2027~2029.]
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  • 收稿日期:2009-11-30
  • 最后修改日期:2010-04-11
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