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軋制中間熱處理溫度對(duì)Ni7W/Ni12W/Ni7W復(fù)合基帶組織及織構(gòu)的影響
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北京工業(yè)大學(xué)材料與科學(xué)工程學(xué)院,北京工業(yè)大學(xué)材料與科學(xué)工程學(xué)院,北京工業(yè)大學(xué)材料與科學(xué)工程學(xué)院,北京工業(yè)大學(xué)材料與科學(xué)工程學(xué)院,北京工業(yè)大學(xué)材料與科學(xué)工程學(xué)院,北京工業(yè)大學(xué)材料與科學(xué)工程學(xué)院

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國家自然科學(xué)基金(51571002);北京市自然科學(xué)基金(2172008);高等學(xué)校博士學(xué)科點(diǎn)專項(xiàng)科研基金資助(20121103110012);2013年度北京市自然科學(xué)基金重點(diǎn)項(xiàng)目B類(KZ201310005003);211計(jì)劃專項(xiàng)資金


Microstructure and Texture of Ni7W/Ni12W/Ni7W Composite Substrates at Different Intermediate Annealing Temperatures
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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

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the National Natural Science Foundation of China(51571002), Beijing Municipal Natural Science Foundation(2172008),the Doctoral Program of Higher Education of Special Research Fund (20121103110012), Beijing Municipal Natural Science Foundation B Type (KZ201310005003), Program of Beijing City and Beijing University of Technology

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    摘要:

    采用壓延輔助雙軸織構(gòu)技術(shù)制備了涂層導(dǎo)體用Ni7W/Ni12W/Ni7W復(fù)合基帶。復(fù)合基帶軋制形變過程加入3次不同溫度的軋制中間熱處理優(yōu)化其形變組織。采用X射線衍射及背散射電子衍射技術(shù)分析了復(fù)合基帶軋制過程中表面及截面的形變及回復(fù)組織,以此探索軋制中間熱處理溫度對(duì)Ni7W/Ni12W/Ni7W復(fù)合基帶形變及立方織構(gòu)形成過程的影響機(jī)制。結(jié)果顯示,經(jīng)600S°C/60Smin軋制中間熱處理后的復(fù)合基帶在較低的再結(jié)晶溫度下獲得了95% (<10°)的高立方織構(gòu)含量。晶體取向分布圖表明該中間熱處理溫度下復(fù)合基帶回復(fù)及初始再結(jié)晶組織中立方取向的晶粒含量都更高;不同取向間點(diǎn)對(duì)點(diǎn)的晶體取向差分析證實(shí)了立方取向晶粒較大的晶界角,這使立方取向在回復(fù)及初始再結(jié)晶過程具有高的界面遷移率,從而促進(jìn)了后續(xù)再結(jié)晶過程強(qiáng)立方織構(gòu)的形成。

    Abstract:

    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.

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劉婧,索紅莉,馬麟,喻丹,崔瑾,紀(jì)耀堂.軋制中間熱處理溫度對(duì)Ni7W/Ni12W/Ni7W復(fù)合基帶組織及織構(gòu)的影響[J].稀有金屬材料與工程,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.]
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  • 收稿日期:2017-03-28
  • 最后修改日期:2017-05-05
  • 錄用日期:2017-05-16
  • 在線發(fā)布日期: 2018-11-08
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