刘婧,索红莉,马麟,喻丹,崔瑾,纪耀堂.轧制中间热处理温度对Ni7W/Ni12W/Ni7W复合基带组织及织构的影响[J].稀有金属材料与工程,2018,47(10):2936~2941.[Liu Jing,Suo Hongli,Ma Lin,Yu Dan,Cui Jin,Ji Yaotang.Microstructure and Texture of Ni7W/Ni12W/Ni7W Composite Substrates at Different Intermediate Annealing Temperatures[J].Rare Metal Materials and Engineering,2018,47(10):2936~2941.]
轧制中间热处理温度对Ni7W/Ni12W/Ni7W复合基带组织及织构的影响
投稿时间:2017-03-28  修订日期:2017-05-05
中文关键词:  高温超导材料  NiW基带  轧制中间退火  形变组织  立方取向
基金项目:国家自然科学基金(51571002);北京市自然科学基金(2172008);高等学校博士学科点专项科研基金资助(20121103110012);2013年度北京市自然科学基金重点项目B类(KZ201310005003);211计划专项资金
中文摘要:
      采用压延辅助双轴织构技术制备了涂层导体用Ni7W/Ni12W/Ni7W复合基带。复合基带轧制形变过程加入3次不同温度的轧制中间热处理优化其形变组织。采用X射线衍射及背散射电子衍射技术分析了复合基带轧制过程中表面及截面的形变及回复组织,以此探索轧制中间热处理温度对Ni7W/Ni12W/Ni7W复合基带形变及立方织构形成过程的影响机制。结果显示,经600S°C/60Smin轧制中间热处理后的复合基带在较低的再结晶温度下获得了95% (<10°)的高立方织构含量。晶体取向分布图表明该中间热处理温度下复合基带回复及初始再结晶组织中立方取向的晶粒含量都更高;不同取向间点对点的晶体取向差分析证实了立方取向晶粒较大的晶界角,这使立方取向在回复及初始再结晶过程具有高的界面迁移率,从而促进了后续再结晶过程强立方织构的形成。
Microstructure and Texture of Ni7W/Ni12W/Ni7W Composite Substrates at Different Intermediate Annealing Temperatures
英文关键词:high temperature superconductor  NiW substrate  intermediate annealing  deformation texture  cube orientation
英文摘要:
      Ni7W/Ni12W/Ni7W composite substrates for YBa2Cu3O7-δ coated conductors were prepared by rolling assisted biaxially textured substrates route. A threefold intermediate annealing at different temperatures was introduced in the rolling process of Ni7W/Ni12W/Ni7W composite substrates to better its deformation texture. The recovery microstructure and the deformation texture of latitude and longitude section were studied with X-ray diffraction and electron backscattered diffraction to reveal the possible mechanism of temperature effects on rolling and strong cube texture formation processes. The results show that the highest cube area fraction is found in sample intermediately annealed at 600S°C/60Smin, in this way Ni7W/Ni12W/Ni7W composite substrates with high cube texture content of 95% (<10°) are obtained at a low recrystallization annealing temperature. Crystal orientation maps reveal that a higher amount of cube orientation exists in its recovery and initial recrystallization samples. Point to point misorientation files confirms the high grain boundary angle of these cube grains, which strongly boost the cube texture formation during subsequent recrystallization.
作者单位E-mail
刘婧 北京工业大学材料与科学工程学院 liujingxiaoxiao@emails.bjut.edu.cn 
索红莉 北京工业大学材料与科学工程学院 15711013168@163.com 
马麟 北京工业大学材料与科学工程学院 malin@bjut.edu.cn 
喻丹 北京工业大学材料与科学工程学院 yd@emails.bjut.edu.cn 
崔瑾 北京工业大学材料与科学工程学院 cuimaomao@emails.bjut.edu.cn 
纪耀堂 北京工业大学材料与科学工程学院 jiyaotang@emails.bjut.edu.cn 
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