| 高纯W-Nb合金单晶的制备及组织性能研究 |
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| 引用本文： | 张文,李来平,胡忠武,高选乔,杨毅超. 高纯W-Nb合金单晶的制备及组织性能研究[J]. 原子能科学技术, 2019, 53(3): 392-396. DOI: 10.7538/yzk.2018.youxian.0714 |
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| 作者姓名： | 张文 李来平 胡忠武 高选乔 杨毅超 |
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| 作者单位： | 西北有色金属研究院，陕西 西安710016 |
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| 摘 要： | 采用电子束悬浮区域熔炼法生长制备出直径22 mm、长150 mm的W-Nb合金单晶棒材，对单晶的晶向偏离角、化学成分、杂质元素含量、微观组织等进行了分析。分析结果表明，单晶棒材的晶向偏离角小于8°，杂质元素总含量小于200 ppm，单晶棒材直线度较好，表面光亮、无裂纹。
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| 关 键 词： | 合金单晶 电子束悬浮区域熔炼 粉末冶金 晶向偏离角 |
Study on Preparation and Microstructure of High Purity W-Nb Alloy Single Crystal |
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| ZHANG Wen,LI Laiping,HU Zhongwu,GAO Xuanqiao,YANG Yichao. Study on Preparation and Microstructure of High Purity W-Nb Alloy Single Crystal[J]. Atomic Energy Science and Technology, 2019, 53(3): 392-396. DOI: 10.7538/yzk.2018.youxian.0714 |
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| Authors: | ZHANG Wen LI Laiping HU Zhongwu GAO Xuanqiao YANG Yichao |
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| Affiliation: | Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China |
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| Abstract: | The W-Nb alloy single crystal rod with diameter of 22 mm and length of 150 mm was prepared by the electron beam floating zone melting method. The misorientation angle of the single crystal, chemical composition, impurity element content and microstructure were analyzed. The analysis results show that the misorientation angle is less than 8°, and total content of impurity element is less than 200 ppm. The W-Nb alloy single crystal rods have good straightness, bright surface and no cracks. |
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| Keywords: | alloy single crystal electron beam floating zone melting powder metallurgy misorientation angle |
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