Development of Niobium Target with Fine Grain and High Purity AITranslate
Abstract AITranslate
Niobium ingot was obtained by twice vacuum electron beam melting of melted niobium prepared by aluminothermic reduction method,and then the slabs were subjected to vacuum annealing at 1100℃for 1 h after repeated upsetting and stretching with a large degree of deformation at room temperature.Finally,niobium target was made by cross rolling→cutting→annealing of finished products→leveling→machining→surface polishing.Metallographic and EBSD tests were carried out on finished producs of niobium target.The results show that using melted niobium as raw material,niobium ingot with purity above 99.99%can be obtained by twice vacuum electron beam melting.The average grain size of niobium ingot is less than 30μm after repeated upsetting and stretching,forging and cold rolling at room temperature.The main texture of niobium ingot is{001}texture,followed by{111}texture.In addition,compared with me-tallographic test,EBSD test can better evaluate the recrystallization degree and grain size of the metal.
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DOI：
Chinese Library Classification Number:TF123[冶金工程—粉末冶金]
Citation Information:
Niobium ingot was obtained by twice vacuum electron beam melting of melted niobium prepared by aluminothermic reduction method,and then the slabs were subjected to vacuum annealing at 1100℃for 1 h after repeated upsetting and stretching with a large degree of deformation at room temperature.Finally,niobium target was made by cross rolling→cutting→annealing of finished products→leveling→machining→surface polishing.Metallographic and EBSD tests were carried out on finished producs of niobium target.The results show that using melted niobium as raw material,niobium ingot with purity above 99.99%can be obtained by twice vacuum electron beam melting.The average grain size of niobium ingot is less than 30μm after repeated upsetting and stretching,forging and cold rolling at room temperature.The main texture of niobium ingot is{001}texture,followed by{111}texture.In addition,compared with me-tallographic test,EBSD test can better evaluate the recrystallization degree and grain size of the metal.
quote
| GB/T 7714-2015 | [1] WU Meng-hai, NIE Teng-fei, TANG Jian-cheng, et al. Development of Niobium Target with Fine Grain and High Purity[J]. Rare Metals and Cemented Carbides, 2021(4): 62-66. |
| MLA | [1] WU Meng-hai, et al., "Development of Niobium Target with Fine Grain and High Purity." Rare Metals and Cemented Carbides, no. 4, 2021, pp. 62-66. |
| APA | [1] WU Meng-hai, NIE Teng-fei, TANG Jian-cheng, FENG Mei-bing, & ZHANG Hong-liang. (2021). Development of Niobium Target with Fine Grain and High Purity. Rare Metals and Cemented Carbides(4), 62-66. |
| IEEE | [1] WU Meng-hai, NIE Teng-fei, TANG Jian-cheng, FENG Mei-bing, and ZHANG Hong-liang, "Development of Niobium Target with Fine Grain and High Purity," Rare Metals and Cemented Carbides, no. 4, pp. 62-66, 2021. keywords: {niobium target;cold forging;rolling;grain size;metallography;electron backscatter diffraction(EBSD)} |