Study on the formation of cubic texture in Ni–7 at.% W alloy substrates by powder metallurgy routes
Study on the formation of cubic texture in Ni–7 at.% W alloy substrates by powder metallurgy routes
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DOI：
10.1016/j.actamat.2008.10.045
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发表时间：
2009-02
期刊：
影响因子：
9.4
通讯作者：
Yuejin Zhao;H. Suo;Yonghua Zhu;J. Grivel;M. Gao;Lin Ma;Ruifen Fan;Min Liu;Yuan Ji;Meiling Zhou
中科院分区：
文献类型：
--
作者：
Yuejin Zhao;H. Suo;Yonghua Zhu;J. Grivel;M. Gao;Lin Ma;Ruifen Fan;Min Liu;Yuan Ji;Meiling Zhou
涂层导体应用的主要挑战之一是制造具有高强度和低磁性的尖角立方织构合金基板。本工作以不同的粉末冶金铸锭为原料，采用轧制辅助双向织构工艺制备了立方织构的Ni-7at.%W基片。详细介绍了两种粉末冶金工艺制备Ni-7at.%W带材立方织构的过程。通过优化工艺，得到织构Ni-7at.%W带材的(111)Phi扫描全宽值为6.7°，(200)摆动曲线估计为5.0°。经电子背散射衍射(EBSD)分析，在公差角小于10°范围内，Ni-7at.%W带材表面立方织构成分的比例达到97.0%。此外，还用EBSD研究了Ni-7at.%W带材立方织构的形成机理。特别注意了部分再结晶样品沿厚度方向织构成分的差异。
One of the main challenges for coated conductor applications is to produce sharp cubic textured alloy substrates with high strength and low magnetism. In this work, the cubic textured Ni–7at.%W substrates were prepared from different powder metallurgy ingots by rolling-assisted biaxially textured substrate processing. The fabrication processes of cubic texture in the Ni–7at.%W tapes by two powder metallurgy routes are described in detail. Through the optimized process, full width at half maximum values of 6.7° and 5.0° were obtained, as estimated by X-ray (111) phi scan and (200) rocking curve in the textured Ni–7at.%W tape, respectively. By electron backscattering diffraction (EBSD) analysis, the percentage of the cubic textured component in the Ni–7at.%W tape surface was found to reach 97.0% within a tolerance angle smaller than 10°. Moreover, the formation mechanism of the cubic texture in the Ni–7at.%W tape were also investigated by EBSD. Particular attention was focused on the difference in the texture components along the thickness of the partially recrystallized samples.