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電熱爆炸定向噴涂法制備鉬涂層
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O389

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Experimental Study on Preparation of Molybdenum Coating Produced by Electrothermal Explosion Directional Spray
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    摘要:

    運(yùn)用電熱爆炸定向噴涂新方法在45#鋼基體上制備了鉬涂層。借助掃描電鏡以及能譜儀對(duì)涂層的組織結(jié)構(gòu)、形貌以及涂層成分進(jìn)行了分析。借助顯微硬度測(cè)試儀對(duì)涂層硬度進(jìn)行了測(cè)試。利用圖像分析軟件對(duì)涂層的晶粒尺寸進(jìn)行了測(cè)量。實(shí)驗(yàn)表明：涂層組織晶粒細(xì)小，涂層硬度提高，HV值最大到達(dá)14110MPa，為原始硬度的3倍，且涂層致密，孔隙率低。能譜分析表明，噴涂過程沒有發(fā)生氧化現(xiàn)象。

    Abstract:

    Molybdenum Coating was sprayed on 45 steel substrate using novel electrothermal explosion directional spray. Microstructure and composition of the coating were analyzed with SEM and EDS, respectively. Hardness of the coating was tested by hardness testing machine. Grain sizes of Mo coating were measured. It shows that the grain of molybdenum coating is very fine. The maximum hardness of the coating is up to HV=1411, 3 times of the sprayed molybdenum material. The coating is dense and the porosity is little. EDS shows that oxidation do not occur during the spraying process.

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蒲澤林 劉宗德 楊昆 毛雪平.電熱爆炸定向噴涂法制備鉬涂層[J].稀有金屬材料與工程,2005,34(4):670~672.[Pu Zelin, Liu Zongde, Yang Kun, Mao Xueping. Experimental Study on Preparation of Molybdenum Coating Produced by Electrothermal Explosion Directional Spray[J]. Rare Metal Materials and Engineering,2005,34(4):670~672.]
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  • 最后修改日期:2004-05-13
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