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粉末粒度對FSP制備Al-Ni金屬間化合物增強(qiáng)鋁基復(fù)合材料的影響
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國家自然科學(xué)基金（51465044）；江西省自然科學(xué)基金（20142BAB216019）；江西省研究生創(chuàng)新專項(xiàng)資金（YC2013-S205）


Influence of Powder Size on the Al-Ni Intermetallic Compound Reinforced Aluminum Matrix Composites Fabricated by FSP
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    摘要:

    采用攪拌摩擦加工法在Al基體中添加粒度30~40 μm，8~10 μm，2~3 μm的Ni粉，制備Ni(400)/Al、Ni(1500)/Al及Ni(6500)/Al復(fù)合材料。采用SEM、EDS 以及XRD 對復(fù)合區(qū)微觀結(jié)構(gòu)及相組成進(jìn)行分析。結(jié)果表明，Ni粉粉末粒度對生成的產(chǎn)物形態(tài)有較大影響，隨著粉末尺寸增大，團(tuán)聚效應(yīng)減弱，破碎效果增強(qiáng)，Ni(6500) /Al、 Ni(1500) /Al 和Ni(400) /Al中Ni團(tuán)體依次呈獨(dú)特疊層狀組織、類橢圓形結(jié)構(gòu)和近圓形結(jié)構(gòu)；粉末尺寸的增大對金屬間化合物的生成更有利；與基體相比，Ni(6500) /Al、 Ni(1500) /Al 和Ni(400) /Al的抗拉強(qiáng)度依次提高了50%、59%和71.9%。

    Abstract:

    Ni(400)/Al, Ni(1500)/Al and Ni(6500)/Al composite materials were fabricated by adding 30~40 μm, 8~10 μm and 2~3 μm Ni powder to the Al substrate in the friction stir processing (FSP) period. The microstructures of the surface composites were analyzed by SEM and EDS, while the phase composition was examined by XRD. Results show that Ni powder particle size has a great influence on morphological characteristics of their products. As the powder size increases, the aggregation effect becomes weaker while the crushing effect is enhanced. And Ni aggregation in Ni(6500)/Al, Ni(1500)/Al and Ni(400)/Al present an unique laminated structure, a nearly elliptic structure and a nearly circular structure, respectively. The increase of powder size is more conducive to the intermetallic compound reaction. Moreover, compared with the matrix, the tensile strength of Ni (6500)/Al, Ni(1500)/Al and Ni(400)/Al is increased greatly by 50%, 59% and 71.9%, respectively.

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強(qiáng)金麗,黃春平,張海軍,余 亮,柯黎明,黃 斌.粉末粒度對FSP制備Al-Ni金屬間化合物增強(qiáng)鋁基復(fù)合材料的影響[J].稀有金屬材料與工程,2015,44(7):1763~1767.[Qiang Jinli, Huang Chunping, Zhang Haijun, Yu Liang, Ke Liming, Huang Bin. Influence of Powder Size on the Al-Ni Intermetallic Compound Reinforced Aluminum Matrix Composites Fabricated by FSP[J]. Rare Metal Materials and Engineering,2015,44(7):1763~1767.]
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  • 收稿日期:2014-07-15
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  • 在線發(fā)布日期: 2016-01-04
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