Abstract The structure of Nb filaments of different geometry artificially doped with NbTi alloy in Nb/Cu-Sn composites after various regimes of deformation beginning from the very first stages of fabrication of thin multifilamentary wires has been studied by transmission electron microscopy, optical microscopy and X-ray analysis. The structure of Nb filaments in composites of different designs is compared, and the development of dislocation and grain structure and texture of niobium in monolithic and assembled filaments under deformation with intermediate annealings is analyzed.

中文翻译：

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制备 Nb3Sn 基超导线时不同几何形状的 Nb 细丝中的位错和晶粒结构形成

摘要 用透射电子显微镜、光学显微镜和 X 射线显微镜研究了在 Nb/Cu-Sn 复合材料中人工掺杂 NbTi 合金的不同几何形状 Nb 细丝的结构，在从制造细复丝线的第一阶段开始的各种变形状态后。 -射线分析。比较了不同设计的复合材料中 Nb 细丝的结构，并分析了在中间退火变形下整体和组装细丝中铌的位错和晶粒结构和织构的发展。