Coercivity relaxation in mechanically alloyed amorphous Fe/sub 50/B/sub 50/ samples
Coercivity relaxation in mechanically alloyed amorphous Fe/sub 50/B/sub 50/ samples
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机械合金化非晶 Fe/sub 50/B/sub 50/ 样品中的矫顽力松弛
DOI：
10.1109/20.489849
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发表时间：
1995
影响因子：
2.1
通讯作者：
G. Alcázar
中科院分区：
文献类型：
--
作者：
A. Giri;J. González;L. Zamora;G. Alcázar
Fe/sub 50/B/sub 50/组成的样品已通过高能球磨制备。铣削材料的相分布主要包括非晶相，尽管该分布取决于制备过程中所用球的机械硬度程度（在使用常规非硬化球合金化的样品中检测到结晶相）。磁滞特性还取决于所用球的类型，在用较硬的球制备的样品的情况下，铣削后的矫顽力较小。在使用非硬化球制备并进行热处理的样品中测量该参数证明了显着降低铣削矫顽力的可能性。对铣削样品和退火样品中存在的相同相分布（和晶相的平均晶粒尺寸）的观察使我们得出结论，应力松弛和相间耦合改进的结合可能是处理后样品软性能增强的原因。
Samples of composition Fe/sub 50/B/sub 50/ have been prepared by high energy ball milling. The phase distribution of the as-milled material included a majority amorphous phase, although that distribution depended on the degree of mechanical hardness of the balls used during the preparation process (crystalline phases were detected in the samples alloyed using regular, non-hardened balls). The hysteretic properties depended also on the type of balls used, the as-milled coercive force being smaller in the case of the samples prepared with harder balls. The measurement of this parameter in samples prepared using non-hardened balls and submitted to thermal treatments evidenced the possibility of reducing significantly the as-milled coercive force. The observation of the same phase distribution (and average grain size of the crystalline phase) present in both the as-milled and the annealed samples led us to conclude that a combination of stress relaxation and of improvement of the interphase coupling could be responsible for the enhancement of the soft properties of the samples resulting from the treatments.