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Preparation of Nickel-Based Alloy Closed-pore Hollow Spheres
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Preparation of Nickel-Based Alloy Closed-pore Hollow Spheres
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National Key Natural Science Foundation of China (51134003); National Science and Technology Support Standard (2012BAC02B05)

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    摘要:

    采用3種不同粒度的鎳基合金粉，通過掛漿法結(jié)合粉末冶金工藝制備出壁厚為0.3~0.4 mm, 直徑為3~3.5 mm的金屬空心球結(jié)構(gòu)。得出了漿料的最佳配比，粘接劑和粉末的質(zhì)量比為1/2。測試了空心球結(jié)構(gòu)的密度、孔隙度和壓縮強度，分析結(jié)果顯示隨著原始粉末粒度的減小，孔隙度減小，密度和抗壓強度增加。壓縮強度分別是16、18、28 MPa，實際相對抗壓強度僅為理論抗壓強度的50%。

    Abstract:

    Nickel-based alloy closed-pore hollow spheres were fabricated using three kinds of powders with different particle sizes by powder metallurgy process. The diameter of the sphere is about 3~3.5 mm and the wall thickness is 0.3~0.4 mm. The optimum slurry ratio is the liquid-solid ratio of 1/2. Some performances of metal hollow sphere (MHS) materials made of the powders with different particle sizes were discussed. The results show that the porosity decreases, density increases with the gradual decrease of particle size; in the meantime the compression strength of MHS increases from 16 to 18 MPa and then to 28 MPa, and actual relative compression strength value is only 50% of the theory value.

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陳金妹,徐 磊,李亞寧,談 萍,皮艷霞,李 程. Preparation of Nickel-Based Alloy Closed-pore Hollow Spheres[J].稀有金屬材料與工程,2014,43(6):1308~1311.[Chen Jinmei, Xu Lei, Li Yaning, Tan Ping, Pi Yanxia, Li Cheng. Preparation of Nickel-Based Alloy Closed-pore Hollow Spheres[J]. Rare Metal Materials and Engineering,2014,43(6):1308~1311.]
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  • 收稿日期:2013-11-14
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  • 在線發(fā)布日期: 2014-11-13
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