Samourgkanidis Georgios, Kouzoudis Dimitris, Charalampous Panagiotis, Adnan Eyad
Department of Civil and Environmental Engineering, University of Cyprus, Nicosia 1678, Cyprus.
Department of Chemical Engineering, University of Patras, 26504 Patras, Greece.
Sensors (Basel). 2025 Jun 13;25(12):3722. doi: 10.3390/s25123722.
This study explores the impact of thermal annealing on the magnetic signal enhancement of three distinct Metglas ribbon materials: 2826MB3, 2605SA1, and 2714A. Each material underwent a systematic annealing process under a range of temperatures (50-500 °C) and durations (10-60 min) to evaluate the influence of thermal treatment on their magnetic signal response. The experimental setup applied a constant excitation frequency of 20 kHz, allowing for direct comparison under identical measurement conditions. The results show that while all three alloys benefit from annealing, their responses differ in magnitude, stability, and sensitivity. The 2826MB3 and 2605SA1 ribbons exhibited similar enhancement patterns, with maximum normalized voltage increases of 75.8% and approximately 70%, respectively. However, 2605SA1 displayed a more abrupt signal drop at elevated temperatures, suggesting reduced thermal stability. In contrast, 2714A reached the highest enhancement at 86.8% but also demonstrated extreme sensitivity to over-annealing, losing its magnetic response rapidly at higher temperatures. The findings highlight the critical role of carefully optimized annealing parameters in maximizing sensor performance and offer practical guidance for the development of advanced magnetoelastic sensing systems.
本研究探讨了热退火对三种不同的美特格拉斯带材（2826MB3、2605SA1和2714A）磁信号增强的影响。每种材料都在一系列温度（50 - 500°C）和持续时间（10 - 60分钟）下进行了系统的退火过程，以评估热处理对其磁信号响应的影响。实验装置施加了20 kHz的恒定激励频率，以便在相同的测量条件下进行直接比较。结果表明，虽然所有三种合金都受益于退火，但其响应在幅度、稳定性和灵敏度方面存在差异。2826MB3和2605SA1带材表现出相似的增强模式，归一化电压最大增幅分别为75.8%和约70%。然而，2605SA1在高温下信号下降更为突然，表明其热稳定性降低。相比之下，2714A达到了最高的增强幅度，为86.8%，但对过退火也表现出极高的敏感性，在较高温度下迅速失去其磁响应。这些发现突出了精心优化退火参数在最大化传感器性能方面的关键作用，并为先进磁弹性传感系统的开发提供了实际指导。
