Cube texture evolution of Ni5W alloy substrates and La-Zr-O buffer layer of YBCO-coated conductors  

作　　者：Pan Wang Hui Tian Hong-Li Suo Cheng Ren Ya-Ru Liang Lin Ma Min Liu 

机构地区：[1]College of Materials Science and Engineering,University of Technology,Beijing,100124,China

出　　处：《Rare Metals》2022年第11期3887-3894,共8页稀有金属（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (No.51171002);Beijing Municipal Natural Science Foundations (Nos.2132011 and KZ201310005003);the Project of Construction of Innovative Teams and Teacher Career Development for Universities and Colleges under Beijing Municipality (No.IDHT20130510);China Postdoctoral Science Foundation funded project (No.2014M560030);Beijing Postdoctoral Research Foundation (No.2014ZZ-38)。

摘　　要：The cube texture evolution of Ni-5 at%W alloy deformed up to a very high strain was thoroughly investigated by X-ray diffraction(XRD) and electron back-scattered diffraction(EBSD) during the process of deformation,recrystallization and grain growth.A typical copper-type rolling texture,mainly consisting of components of S,copper and brass orientations,is obtained after heavy cold rolling.The fraction of rolling texture is slightly strengthened during recovery and then strongly reduced during recry stallization process.The cube texture is formed by consuming the rolling texture components during the discontinuous recry stallization process.The cube grains have a size advantage with respect to the non-cube grains.A strong cube-textured Ni5 W alloy substrate with cube texture area fraction of 98.2 %(<10°) is obtained after annealing at 1050℃ for 1 h.The full width half maximum(FWHM) values for the X-ray(111) φ-scan and the(002)ω-scan of this substrate are 5.84° and 4.76°,respectively.Furthermore,the area fraction of {001}(110) orientation of the epitaxially grown La_(2)Zr_(2)O_(7) buffer layer is 97.1 %(<10°),and the FWHM values of(111) φ-scan and(002)ω-scan are 5.22° and 5.00°,respectively.

关 键 词：Ni5W alloy RECRYSTALLIZATION Texture Microstructure La_(2)Zr_(2)O_(7) 

分 类 号：TG174.4[金属学及工艺—金属表面处理]