Abstract

This study is to fabricate a composite substrate (Ni7W/Ni12W/Ni7W) with weak magnetization, strong reinforcement, and improved cube texture via Rolling Assisted Biaxially Textured Substrates (RABiTS) route. The formation of cube texture with reduction in twin boundaries due to recrystallization annealing was investigated thoroughly. The optimized recrystallization annealing process revealed 97.4% of cube texture and 83.9% of small angle grain boundaries at an angle of (<10°). Higher W content and presence of defects (holes, dislocations, and grain boundaries) within inner layer of the substrate restricted the formation of cube texture along the normal direction (ND), as compared to rolling direction (RD). Furthermore, significant improvement in mechanical strength (σ_0.2 = 205 ± 2 MPa) and saturation magnetization (2.6 emu/g) was found for Ni7W/Ni12W/Ni7W as compared to Ni7.5W substrates.

中文翻译：

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退火温度对Ni7W / Ni12W / Ni7W复合衬底中立方织构形成的影响

摘要

这项研究旨在通过轧制辅助双轴织构化基材（RABiTS）路线制造具有弱磁化强度，强增强性和改善立方织构的复合基材（Ni7W / Ni12W / Ni7W）。彻底研究了由于重结晶退火而孪晶界减少的立方织构的形成。优化的重结晶退火工艺显示出（<10°）角的97.4％的立方织构和83.9％的小角晶界。与轧制方向（RD）相比，较高的W含量和基板内层中缺陷（孔，位错和晶界）的存在限制了沿法线方向（ND）的立方织构的形成。此外，在机械强度显著改善（σ _0.2 与Ni7.5W基板相比，Ni7W / Ni12W / Ni7W的饱和磁化强度（2.6 emu / g）= 205±2 MPa。