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为了制作能满足YBCO涂层导体(coated conductor)所需要的高强度、低磁性的立方织构基带,本工作用粉末冶金方法制作了Ni-5at%W合金基带.为评估基带中立方织构的发展,用March-Dollase函数对各种热处理样品的择优取向度进行了研究,结果与用X射线极图法和电子背散射衍射法得到的结果基本一致.研究结果表明,在实验中所用的工艺参数范围内,随总加工率和热处理温度的提高,基带中立方织构百分数明显增高.提高总加工率实际增加了冷加工样品中立方织构晶粒或立方核心的数量.实验中得到了较好的和实用的工艺制度,用这种工艺可以制作出具有99%~100%立方织构百分数,并具有很好一致取向度的Ni5W基带.
In order to fabricate a high-strength, low-magnetic cubic textured base tape that meets the YBCO coated conductor requirements, Ni-5 at% W alloy base tapes were fabricated by a powder metallurgy method.To evaluate the effect of cubic-textured Developed by March-Dollase function of a variety of heat-treated samples of the preferred orientation was studied and the results with the X-ray pole figure method and electron backscatter diffraction results are basically the same.The results show that the process used in the experiment In the parameter range, with the increase of the total processing rate and heat treatment temperature, the percentage of cubic texture in the base band increased obviously, and increasing the total processing rate actually increased the number of cubic textured grains or cubic cores in the cold-worked samples. And practical process system, with this process can be produced with 99% to 100% cubic textured percentage, and has a good uniform orientation of Ni5W baseband.