Shujie Kang, Zhe Chen, Qianke Zhu, Kewei Zhang, Mohammed A. Amin, Anoud Saud Alshammari, Hua Qiu, Zhijie Yan, Mukun He, Yong Jiang, Nawal D. Alqarni, Zijian Wu
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引用次数: 0
摘要
铁基非晶/纳米晶合金的玻璃化能力（GFA）和软磁特性（SMPs）之间的协调性引起了广泛关注。本文通过微合金化 P，研究了铁硅铜非晶合金体系的玻璃化能力（GFA）、热稳定性、软磁性能和微观结构。研究发现，加入 P 不仅提高了非晶无序度，还促进了 α-Fe（Si）晶粒的析出，并拓宽了退火窗口。此外，添加 P 改变了 α-Fe(Si)相的最佳结晶取向，增强了不同取向晶粒的生长竞争，从而促进了晶粒细化（平均晶粒尺寸从 61.36 nm 减小到 21.24 nm）。经过最佳退火处理后，添加了 8% P 的带材显示出较低的矫顽力（Hc），为 4.61 A/m。FeSiBPCu 合金中晶粒优先生长的独特机制为纳米结晶结构演变与 SMPs 调制之间的关联提供了相关指导。
Modulating magnetic properties of high entropy soft FeSiB(P)Cu alloys with excellent GFA via α-Fe(Si) grain preferential growth mechanism
The harmony between glass-forming ability (GFA) and soft magnetic properties (SMPs) of Fe-based amorphous/nanocrystalline alloys has garnered considerable attention. Herein, a prototypical FeSiBCu amorphous alloy system by microalloying P was investigated regarding the GFA, thermal stability, SMPs, and microstructure. It was found that including P not only raised the degree of amorphous disorder but also facilitated the precipitation of α-Fe(Si) grains and widened the annealing window. Furthermore, adding P changed the optimal crystallographic orientation of the α-Fe(Si) phase and enhanced the growth competition of grains with different orientations, which promoted grain refinement (The average grain size was decreased from 61.36 to 21.24 nm). After optimal annealing processing, the ribbons with 8 at.% P addition displayed a lower coercivity (Hc) of 4.61 A/m. While the 4 at.% P-added ribbons exhibited a higher saturation magnetic flux density (Bs) of 1.75 T. The distinctive mechanism of grain preferential growth in FeSiBPCu alloys provides relevant guidance on the correlation between nanocrystalline structure evolution and the modulation of SMPs.
期刊介绍：
Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field.
The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest.
Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials.
Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.
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