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首页> 外文期刊>IEEE Transactions on Magnetics >Effect of Annealing on Magnetic and Mechanical Behaviors of NANOPERM-Type Alloys
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Effect of Annealing on Magnetic and Mechanical Behaviors of NANOPERM-Type Alloys

机译：退火对NANOPERM型合金磁和机械行为的影响

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摘要

Microstructure, ac magnetic, and mechanical properties of the Fe76Mo8Cu1B15 alloy in the amorphous and nanocrystalline state were studied. Transmission electron microscopy was used to analyze the amorphous structure of as-quenched precursor and nanocrystalline phase of sample annealed at 783 K for 1800 s, i.e., the above primary crystallization temperature. Creation of alpha-Fe nanograins with an average grain size of 8.6 nm affects magnetic and mechanical properties. In order to understand the correlation between structural changes resulting in soft magnetic properties in the Fe76Mo8Cu1B15 alloy frequency characteristics of complex permeability and core loss were drawn in the wide range of frequency and magnetic field. Moreover, from dependence of core losses versus maximum magnetic induction Steinmetz coefficients were also calculated for the as-quenched and annealed Fe76Mo8Cu1B15 alloy. Nanoindentation tests with Berkovich diamond indenter were performed for amorphous and nanocrystalline samples for analysis mechanical properties of pure amorphous matrix and nanocrystalline structure represented by alpha-Fe grains embedded in amorphous residue.
机译：研究了非晶态和纳米晶态的Fe76Mo8Cu1B15合金的显微组织，交流磁性能和力学性能。用透射电子显微镜分析在783K下退火1800s，即上述初晶温度的样品的急冷前体和纳米晶相的非晶态结构。平均晶粒尺寸为8.6 nm的α-Fe纳米晶粒的产生会影响磁性能和机械性能。为了理解Fe76Mo8Cu1B15合金中导致软磁性能的结构变化之间的相关性，在较宽的频率和磁场范围内绘制了复磁导率和铁损的频率特性。此外，根据铁损与最大磁感应强度之间的关系，还计算出了淬火和退火后的Fe76Mo8Cu1B15合金的Steinmetz系数。用Berkovich金刚石压头对纳米和非晶样品进行了纳米压痕测试，以分析纯非晶基质和由嵌入非晶态残余物中的α-Fe晶粒表示的纳米晶体结构的力学性能。

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