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含釔真空熔結(jié)NiCrBSi合金涂層組織結(jié)構(gòu)的研究
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TG174.445

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安徽省“十五”科技攻關(guān)項目(01012031)


Study on Structure of Vacuum Fusion Sintering NiCrBSi Alloy Coating Containing Rare Earth Yttrium
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    摘要:

    利用電子能譜儀、X射線衍射儀、掃描電子顯微鏡等研究了稀土Y對真空熔結(jié)NiCrBSi合金涂層化學(xué)組成和組織結(jié)構(gòu)的影響。結(jié)果表明：稀土Y改變了合金涂層的化學(xué)組成、減輕了因碳鋼母材中的Fe向合金涂層擴散而造成的“稀釋”現(xiàn)象，降低了涂層的Fe含量，基本消除了NiCrBSi合金涂層中的針狀相，促進了球狀相的析出和細化。含稀土Y的真空熔結(jié)NiCrBSi合金涂層還析出了新的第二相Cr7C3和Ni2B。

    Abstract:

    In virtue of electron energy spectrometer, X-ray diffractometer and scanning electron microscope, the effects of rare earth yttrium on chemical composition and structure of the vacuum fusion sintering NiCrBSi alloy coating were studied. The results show that rare earth yttrium changes chemical component of alloy coating and hinders the dilution of Fe for NiCrBSi alloy coating owing to the diffusion of Fe atom in alloy coating from steel matrix. Rare earth yttrium makes Fe content in alloy coating decrease, eliminates needle phase of alloy coating mostly, and gets globular phase of alloy coating deposited and refined further. New second phases Cr7C3 and Ni2B are also precipitated from vacuum fusion sintering NiCrBSi alloy coating containing rare earth yttrium.

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宣天鵬 閔丹 祖國全 向啟琦.含釔真空熔結(jié)NiCrBSi合金涂層組織結(jié)構(gòu)的研究[J].稀有金屬材料與工程,2005,34(4):589~592.[Xuan Tianpeng, Min Dan, Zu Guoquan, Xiang Qiqi. Study on Structure of Vacuum Fusion Sintering NiCrBSi Alloy Coating Containing Rare Earth Yttrium[J]. Rare Metal Materials and Engineering,2005,34(4):589~592.]
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