摘要
采用压延辅助双轴织构基板制备路线成功轧制出长度大于100 m、厚度约为66μm的Ni-5at%W(Ni5W)合金长带,从中截取10 m长带在自制的卷到卷热处理系统中进行再结晶动态退火处理。XRD织构分析显示,整条长带退火前的轧制织构含量平均值为63.8%(≤10°),动态退火长带面内和面外织构的半高宽平均值分别为7.2°和6.1°。EBSD分析发现,基带立方织构含量为98.7%(≤10°),小角晶界含量为87.7%(≤10°)。长带轧制过程中变更轧机时增加首道次压下量可以有效改善轧制过程中带材断裂的情况。此工艺可以制备出符合YBCO超导层需求的、具有高立方织构含量和均匀性的Ni5W合金长带。
A 100-meter-long Ni-5at%W（Ni5W） alloy tape with -66 μm thickness has been fabricated by rolling assisted bi-axially textured substrate route technique（RABi TS）. A 10 m long section was taken from the original piece and recrystallized in a home-designed reel-to-reel heat treatment system. XRD texture characterization shows that the average content of rolling textures is 63.8%（≤10°） before annealing, and the average FWHM values of the in-plane and out-of-plane texture over the annealed tape length are 7.2° and 6.1°, respectively. Moreover, EBSD analyses indicate that the content of the cube texture reaches 98.7%（≤10°） and that of the grain boundaries exceeds 87.7%（≤10°）. In the cold-rolling process, increasing the reduction in the first pass while changing to another mill can effectively reduce the broken cases. These results prove that the process has the ability to yield Ni-5at%W tapes with a high cube texture and homogeneous qualities, which will be able to satisfy the requirements of the YBa2Cu3O（7-x） superconductive layer.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2017年第8期2249-2253,共5页
Rare Metal Materials and Engineering
基金
国家自然科学基金(51171002)
北京市自然科学基金(2132011)
2013年度北京市自然科学基金重点项目B类(KZ201310005003)
高等学校博士学科点专项科研基金(20121103110012)
北京市属高等学校创新团队建设与教师职业发展计划项目(IDHT20130510)
