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高温超导金属基带再结晶织构及显微组织
The Recrystallization Texture and Microstructure of Metallic Tapes for High Temperature Superconductor
【Author】 LIU Hui-zhou;SHI Kai;YANG Jian;SHU Yong-hua;YUAN Guan-sen General Research Institute for Nonferrous Metal, Beijing 100088, China Tsinghua University Beijing, 100084, China
【机构】 北京有色金属研究总院超导中心；
【摘要】 用轧制-再结晶热处理方法制备了强立方织构的纯Ni基带和无磁性Cu-Ni合金基带,为第二代高温超导带材提供了较好的基带材料。用三维取向分布函数(ODF)和ψ扫描曲线研究了织构,用金相显微镜研究了截面显微组织。分析表明,Cu0.70Ni0.30合金和纯Ni在再结晶温度为1000℃时,获得最强的立方织构;Cu0.85Ni0.15在900℃时获得最强的立方织构,立方织构强度大小各不相同;三种不同组分金属都获得了均匀的等轴晶粒组织,其中Cu0.85Ni0.15的晶粒大于Cu0.70Ni0.30和纯Ni的晶粒;Cu0.85Ni0.15和Cu0.70Ni0.30都出现了退火孪晶。
【Abstract】 The cube textured pure Ni and non-magnetic Cu-Ni tapes were obtained by rolling and recrystallization andthese tapes are suited as substrates of the second generation high temperature superconductor. Study the texture oftapes using Orientation Distribution Function (ODF) and φ-scans. The results indicate that sharp cube texture ofCu0.70Ni0.30 and pure Ni was formed at 1000℃ and of Cu0.85Ni0.15 was formed at 900℃. The intensity of cubetexture differ from each other. The uniform iso-axis crystallite tissue was obtained in all the tapes and size ofCu0.85Ni0.15 was bigger than that of Cu0.70Ni0.30 and pure Ni. Annealing twin was formed in Cu0.85Ni0.15 andCu0.70Ni0.30.
【Key words】 high temperature superconductor； cube texture； substrate； twin；
- 【会议录名称】 第四届中国功能材料及其应用学术会议论文集
- 【会议名称】第四届中国功能材料及其应用学术会议
- 【会议时间】2001-10
- 【会议地点】中国厦门
- 【分类号】TM26
- 【主办单位】中国仪器仪表学会仪表材料分会