Influence of Hot Rolling on Cube Texture of Ni Substrate for Coated Conductor

• Published in: Journal of rare earths Vol. 24; no. 5; pp. 636 - 640
• Main Author: 屈飞 刘慧舟 杨坚 古宏伟 王超群 史锴
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2006; Superconducting Materials Research Center, General Research Institute for Non-Ferrous Metals, Beijing 100088,China%National Center of Analysis and Testing, General Research Institute for Non-Ferrous Metals, Beijing 100088, China%Applied Superconductivity Research Center, Tsinghua University, Beijing 100084, China
• Subjects: cube texture; grain boundary; high temperature superconductor; nickel substrate; rare earths; TM26; 稀土元素; 立方织构; 镍底物; 高温超导体; nickel substrate; cube texture; TM26; grain boundary; high temperature superconductor; rare earths
• ISSN: 1002-0721; 2509-4963
• DOI: 10.1016/S1002-0721(06)60178-6

Pure Ni and Ni alloy tapes with sharp cube texture and low-angle grain boundaries prepared by thermomechanical process were extensively used as substrates for coated conductor. The thermomechanical process usually includes hot forging and cold rolling. In this study, a hot-rolling process between hot forging and cold rolling was induced. The influence of hot rolling on the cube texture of pure Ni was discussed. Sharp cube texture on pure Ni was obtained by suitable hot rolling, cold rolling, and recrystallization treatment. This deformation texture of tape was studied using orientation distribution function （ODF）. Orientation mapping, content of the cube texture, and grain boundary distribution were performed using an EBSD system mounted on LEO-1450 SEM. The results show that the substrates that are hot rolled have a sharp cube texture and low-angle grain boundaries.