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燒結(jié)溫度對(duì)Ni16Cr9Al多孔材料性能的影響
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Effect of Sintering Temperature on Ni16Cr9Al Porous Material Performance
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    摘要:

    以粒度小于25 μm的Ni16Cr9Al預(yù)合金粉末為原料，采用模壓成形、真空燒結(jié)的方法制備了Ni16Cr9Al多孔材料，研究了燒結(jié)溫度對(duì)Ni16Cr9Al多孔材料性能的影響。結(jié)果表明：Ni16Cr9Al粉末壓坯在燒結(jié)過程中由于燒結(jié)頸的形成、長大，體積發(fā)生收縮，隨著溫度的升高，燒結(jié)體的孔隙度和孔徑減小，強(qiáng)度提高，1130 ℃具有良好的三維孔隙結(jié)構(gòu)，高于1150 ℃，孔隙減少，材料逐漸致密

    Abstract:

    Using Ni16Cr9Al pre-alloy powder with ＜25 μm particles size as starting material, Ni16Cr9Al porous material was prepared by pressing and vacuum sintering. The effect of sintering temperature on Ni16Cr9Al porous material performance was researched. The results show that the shrinkage of the volume of Ni16Cr9Al green body will occur owing to forming and growing up of sintering-neck during the sinter. The porosity, the maximum and average pore sizes decrease and the shear strength of the Ni16Cr9Al porous materials increases with the increase of the sintering temperature. The Ni16Cr9Al porous material possesses a favorable three-dimensional meshwork after sintering at 1130 ℃. The porosity quantity decreases and the density of the Ni16Cr9Al material gradually increases after sintering over 1150 ℃

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康新婷,遲煜頔,劉海彥,沈 磊,王 輝,葛 淵.燒結(jié)溫度對(duì)Ni16Cr9Al多孔材料性能的影響[J].稀有金屬材料與工程,2013,42(11):2380~2383.[Kang Xinting,,Chi Yudi, Liu Haiyan, Shen Lei, Wang Hui, Ge Yuan. Effect of Sintering Temperature on Ni16Cr9Al Porous Material Performance[J]. Rare Metal Materials and Engineering,2013,42(11):2380~2383.]
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  • 收稿日期:2013-05-14
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