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W粉末的形貌結(jié)構(gòu)對(duì)板狀晶硬質(zhì)合金的組織與性能的影響
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南昌大學(xué)材料科學(xué)與工程學(xué)院;南昌硬質(zhì)合金有限責(zé)任公司;,南昌大學(xué)材料科學(xué)與工程學(xué)院，南昌 330031

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TF122

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國(guó)家自然科學(xué)基金項(xiàng)目（面上項(xiàng)目，重點(diǎn)項(xiàng)目，重大項(xiàng)目）;國(guó)家教育部博士點(diǎn)基金


Effects of Morphology Structures of Tungsten powders on the Properties and Microstructures of Plate-like Grain Cemented Carbi
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Nanchang Cemented Carbide Co., Ltd.,School of Materials Science and Engineering, Nanchang University

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    摘要:

    采用W Co C(碳黑)為原料制備板狀晶硬質(zhì)合金，研究了不同形貌結(jié)構(gòu)的氧化鎢所制備的W粉末形貌結(jié)構(gòu)對(duì)板狀晶硬質(zhì)合金組織、性能的影響。結(jié)果表明，不同于藍(lán)鎢制備的高溫中顆粒W粉呈類球狀或斜方十二面體結(jié)構(gòu)，黃鎢制備的W粉末顆粒呈多面體等軸狀，更易于通過球磨獲取扁平化程度高的W粉末，制備出板晶化程度高，板狀晶的長(zhǎng)、徑比大，晶粒的取向性好的板狀晶硬質(zhì)合金。

    Abstract:

    The plate-like grain cemented carbides were prepared using W Co C (carbon black) as the raw materials. Effects of the morphologies of tungsten powders prepared by different raw materials on the flattening morphologies of W powders and the microstructures and properties of plate-like grain cemented carbides were researched. It showed that the morphologies of W powders prepared by blue tungsten oxides (BTO) were spherical polyhedron. However, the W powders prepared by yellow tungsten oxides (YTO) were polyhedral equiaxial, which were easier access to prepare plate-like tungsten powders by ball milling, and prepare plate-like grain WC-Co cemented carbides.

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雷純鵬,唐建成. W粉末的形貌結(jié)構(gòu)對(duì)板狀晶硬質(zhì)合金的組織與性能的影響[J].稀有金屬材料與工程,2016,45(8):2146~2149.[leichunpeng, Tang Jiancheng. Effects of Morphology Structures of Tungsten powders on the Properties and Microstructures of Plate-like Grain Cemented Carbi[J]. Rare Metal Materials and Engineering,2016,45(8):2146~2149.]
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  • 收稿日期:2014-07-02
  • 最后修改日期:2014-07-25
  • 錄用日期:2014-10-30
  • 在線發(fā)布日期: 2016-10-09
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