Effect of Morphology of APT on Microstructure and Properties of W,WC Powder and Cemented Carbide AITranslate
Abstract AITranslate
Single crystal APT and polycrystalline APT prepared by different crystallization processes were used as raw materials to produce single crystal tungsten trioxide and polycrystalline tungsten trioxide after high temperature calcination.Then, using single crystal tungsten trioxide and polycrystal tungsten trioxide as raw materials, medium grain tungsten powder, tungsten carbide and WC-6%Co cemented carbide were prepared, and the effect of APT morphology on the microstructure, physical and mechanical properties of powder products and cemented carbide were studied in detail.The results show that the tungsten trioxide prepared by calcining APT with different morphologies still retains the morphology of APT.The tungsten powder prepared by two kinds of tungsten trioxide with different morphologies is quasi-spherical, but the tungsten powder prepared by single crystal tungsten trioxide has good uniformity, less fine powder, no obvious crystallographic plane and high spheroidization degree.However, the tungsten powder prepared by polycrystalline tungsten trioxide has poor uniformity, more fine powder and obvious crystallographic plane.In the carbonization process, the grain size of tungsten powder prepared by single crystal tungsten trioxide increases by 21.5%,which is significantly higher compared with tungsten powder prepared by polycrystalline tungsten trioxide, and the granules with high spheroidization degree are more in the prepared tungsten carbide.Compared with WC-6%Co cemented carbide prepared by polycrystalline APT,WC-6%Co cemented carbide prepared by single crystal APT has higher coercive force, hardness and bending strength, better microstructure uniformity and more excellent overall properties.
KeyWords AITranslate
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Basic Information:
DOI：
Chinese Library Classification Number:TG135.5[一般工业技术—材料科学与工程]
Citation Information:
Single crystal APT and polycrystalline APT prepared by different crystallization processes were used as raw materials to produce single crystal tungsten trioxide and polycrystalline tungsten trioxide after high temperature calcination.Then, using single crystal tungsten trioxide and polycrystal tungsten trioxide as raw materials, medium grain tungsten powder, tungsten carbide and WC-6%Co cemented carbide were prepared, and the effect of APT morphology on the microstructure, physical and mechanical properties of powder products and cemented carbide were studied in detail.The results show that the tungsten trioxide prepared by calcining APT with different morphologies still retains the morphology of APT.The tungsten powder prepared by two kinds of tungsten trioxide with different morphologies is quasi-spherical, but the tungsten powder prepared by single crystal tungsten trioxide has good uniformity, less fine powder, no obvious crystallographic plane and high spheroidization degree.However, the tungsten powder prepared by polycrystalline tungsten trioxide has poor uniformity, more fine powder and obvious crystallographic plane.In the carbonization process, the grain size of tungsten powder prepared by single crystal tungsten trioxide increases by 21.5%,which is significantly higher compared with tungsten powder prepared by polycrystalline tungsten trioxide, and the granules with high spheroidization degree are more in the prepared tungsten carbide.Compared with WC-6%Co cemented carbide prepared by polycrystalline APT,WC-6%Co cemented carbide prepared by single crystal APT has higher coercive force, hardness and bending strength, better microstructure uniformity and more excellent overall properties.
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| GB/T 7714-2015 | [1] ZHANG Long-hui, ZHOU Jun-an, XU Guo-zuan, et al. Effect of Morphology of APT on Microstructure and Properties of W,WC Powder and Cemented Carbide[J]. Rare Metals and Cemented Carbides, 2022(1): 81-88. |
| MLA | [1] ZHANG Long-hui, et al., "Effect of Morphology of APT on Microstructure and Properties of W,WC Powder and Cemented Carbide." Rare Metals and Cemented Carbides, no. 1, 2022, pp. 81-88. |
| APA | [1] ZHANG Long-hui, ZHOU Jun-an, XU Guo-zuan, YANG Cheng-hui, YANG Qiu-min, & LIU Ru-tie. (2022). Effect of Morphology of APT on Microstructure and Properties of W,WC Powder and Cemented Carbide. Rare Metals and Cemented Carbides(1), 81-88. |
| IEEE | [1] ZHANG Long-hui, ZHOU Jun-an, XU Guo-zuan, YANG Cheng-hui, YANG Qiu-min, and LIU Ru-tie, "Effect of Morphology of APT on Microstructure and Properties of W,WC Powder and Cemented Carbide," Rare Metals and Cemented Carbides, no. 1, pp. 81-88, 2022. keywords: {single crystal;polycrystalline;APT;W powder;WO3 powder;cemented carbide;property} |