(北京工业大学 国家教育部功能材料重点实验室，北京 100124)
摘 要: 采用先进的放电等离子烧结技术(SPS)制备Ni7W合金初始坯锭，通过优化高能球磨和烧结工艺以及后续和热处理工艺制备出高度立方织构的Ni7W合金基带。利用电子背散射衍射(EBSD)技术对Ni7W合金基带的晶粒取向、晶界特征等信息进行采集和分析，对其织构进行了表征。该基带无需抛光，即可获得高花样质量的电子背散射衍射图像。EBSD测试结果表明：该Ni7W基带表面10˚以内立方织构晶粒质量分数高达99.4%，10˚以内晶界长度质量分数为93.6%，具有高质量的立方织构。
关键字: Ni-7%W基带(Ni7W)；立方织构；涂层导体
coated conductor
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Abstract:The cube textured Ni-7%W substrates were prepared by spark plasma sintered (SPS) ingot, followed by rolling-assisted biaxially textured substrate (RABiTS) processing. The grain orientation data and the grain boundaries information of the Ni-7%W(Ni7W) substrate were collected by electron backscatter diffractometry (EBSD). The texture of the Ni7W substrate was analyzed. The high quality of EBSD image is observed on the sample surface after annealing process without polishing. The Ni7W substrate forms a sharp cube texture, and the mass fraction and length fraction of the cube texture grains in the Ni7W substrate reach 99.4% and 93.6%, respectively, within tolerance angle smaller than 10˚.
Key words: Ni-7%W substrate (Ni7W); cube texture; coated conductor
