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涂层导体用Ni-5at.%W长带制备研究
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北京工业大学材料科学与工程学院,北京工业大学材料科学与工程学院,北京工业大学材料科学与工程学院,北京工业大学材料科学与工程学院,北京工业大学材料科学与工程学院,北京工业大学材料科学与工程学院,北京工业大学材料科学与工程学院,北京工业大学材料科学与工程学院

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TG146

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国家自然科学基金(项目号51171002)、北京市自然科学基金(项目号2132011)、2013年度北京市自然科学基金重点项目B类(项目号KZ201310005003)、高等学校博士学科点专项科研基金资助(项目号20121103110012)、北京市属高等学校创新团队建设与教师职业发展计划项目(项目号IDHT20130510)等资助


Study on Fabrication of Ni-5at.%W long Tapes for Coated Conductors
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College of Materials Science and Engineering,Beijing University of Technology,College of Materials Science and Engineering,Beijing University of Technology,College of Materials Science and Engineering,Beijing University of Technology,College of Materials Science and Engineering,Beijing University of Technology,College of Materials Science and Engineering,Beijing University of Technology,College of Materials Science and Engineering,Beijing University of Technology,College of Materials Science and Engineering,Beijing University of Technology,College of Materials Science and Engineering,Beijing University of Technology

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    摘要:

    采用压延辅助双轴织构基板制备路线成功轧制出长度大于100m、厚度约为66μm的Ni-5at.%W(Ni5W)合金长带,从中截取10m长带在自制的卷到卷热处理系统中进行再结晶动态退火处理。XRD织构分析显示,整条长带退火前的轧制织构含量平均值为63.8%(≤10°),动态退火长带面内和面外织构的半高宽平均值分别为7.2°和6.1°。EBSD分析发现,基带立方织构含量为98.7%(≤10°),小角晶界含量为87.7%(≤10°)。长带轧制过程中变更轧机时增加首道次压下量可以有效改善轧制过程中带材断裂的情况。此工艺可以制备出符合YBCO超导层需求的、具有高立方织构含量和均匀性的Ni5W合金长带。

    Abstract:

    A 100-meter-long Ni-5at.%W (Ni5W) alloy tape with ~66μm thickness had been fabricated successfully by Rolling assisted bi-axially textured substrate route technique. A 10m long section was taken from the original piece and recrystallized in a home-designed reel-to-reel heat treatment system. The XRD texture characterization showed that the average content of rolling textures was 63.8% (≤10°) before annealing, and the average FWHM values of the in-plane and out-of-plane texture over the annealed tape length were 7.2° and 6.1° respectively. Moreover, EBSD analyses determined that the content of the cube texture reached 98.7% (≤10°) and that of the grain boundaries exceeded 87.7% (≤10°). In the cold-rolling process, increasing the reduction in the first pass while changing to another mill can effectively reduce the broken cases. These results will prove that the process described in this work has the ability to yield Ni-5at.%W tapes with a high cube texture and homogeneous qualities, which will be able to satisfy the requirements of the YBCO superconductive layer.

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马麟,田辉,梁雅儒,孟易辰,彭发学,王毅,高忙忙,索红莉.涂层导体用Ni-5at.%W长带制备研究[J].稀有金属材料与工程,2017,46(8):2249~2253.[Ma Lin, Tian Hui, Liang Yaru, Meng Yichen, Peng Faxue, Wang Yi, Gao Mangmang, Suo Hongli. Study on Fabrication of Ni-5at.%W long Tapes for Coated Conductors[J]. Rare Metal Materials and Engineering,2017,46(8):2249~2253.]
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  • 收稿日期:2015-03-31
  • 最后修改日期:2015-05-29
  • 录用日期:2015-08-11
  • 在线发布日期: 2017-11-16
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