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  • 贾佳林,吴艺凡,梁明,王鹏飞.Nb 管增强Cu-Nb 复合线材的结构及力学性能研究[J].低温物理学报,2023,(3):142-147.    [点击复制]
  • JIAJialin,WU Yifan,LIANG Ming,WANG Pengfei.Study on Structure and Mechanical Properties of Cu-Nb Composite Wire Reinforced with Nb Tube[J].LOW TEMPERATURE PHYSICAL LETTERS,2023,(3):142-147.   [点击复制]
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Nb 管增强Cu-Nb 复合线材的结构及力学性能研究
贾佳林, 吴艺凡, 梁明, 王鹏飞
0
(西北有色金属研究院, 西安 710016)
摘要:
Cu-Nb 复合材料兼具高强度、 高电导率以及高热稳定性等优势, 已成为脉冲磁体和电磁线圈导体材料的首选. 本文通过集束拉拔技术成功制备出了 Nb 管增强 Cu-Nb 三次复合线材. 综合利用 TEM/HRTEM、EBSD 等表征和测试手段分析了冷拉变形后材料的微观组织, 揭示了大塑性变形后 Nb 管增强 Cu-Nb 复合线材的微结构演变特征. 并基于线材强度与 Nb 芯丝的量化关系分析, 探讨了 Nb 管增强 Cu-Nb 复合线材的强化机理.
关键词:  Cu-Nb 复合线材, 集束拉拔技术, 织构取向, 强化机理
DOI:10.13380/j .ltpl.2023.03.003
基金项目:国家自然科学基金项目(编号:52073233) 和陕西省重点研发计划一般项目(2022GY-376)
Study on Structure and Mechanical Properties of Cu-Nb Composite Wire Reinforced with Nb Tube
JIAJialin, WU Yifan, LIANG Ming, WANG Pengfei
(Northwest Institutefor Nonferrous Metal Research , Xi ’an 710016)
Abstract:
Cu-Nb composite has the advantages of high strength, high conductivity and high thermal stability, and has become the first choice of pulsed magnets and electromagnetic coil conductor materials. In this contribution, Nb tube reinforced Cu-Nb cubic composite wire was prepared successfully by bundling and drawing technique. TEM/ HRTEM, EBSD and other characterization and testing methods were used to analyze the microstructure of the materials after cold drawing deformation. The microstructure evolution characteristics of Nb tube-reinforced Cu-Nb composite wires after large plastic deformation were revealed. Based on the quantitative relationship between wire strength and Nb core wire, the strengthening mechanism of Nb tube reinforced Cu-Nb composite wire was discussed.
Key words:  Cu-Nb composite wire, Accumulative drawing and bundling process, Texture orientation, Strengthening mechanism

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