“提高FeAl_(16)合金磁性能的探讨”一文的作者对FeAl_(16)合金做了大量的工作,并取得了μ_(0.005)=34800高/奥,μ_(max)=189000高/奥的可喜成果。但对取得FeAl_(16)合金高性能的分析,我有以下不同的看法: 1.作者认为提高FeAl_(16)合金的磁导率,关键在于选择适当的Fe_3Al有序度,其最主要的实验依据是FeAl_(16)合金的膨胀分析(见原文中的图1)。从这个膨胀分析来看,在500℃附近有一转折点,转折点以上和以下的平均线膨胀系数的斜率迥然不同,说明500℃以下和以上属不同相的合金,即在500℃发生FeAl?FeAl相的转变。这一结果与Fe-Al合金相图是符合的。但是这个膨胀分 The author of this article has done a lot of work on the FeAl_ (16) alloy and has achieved the results that μ_ (0.005) = 34800H / Å and μ_ (max) = 189000high / Gratifying results. However, for the analysis of the high performance of FeAl_ (16) alloy, I have the following different views: 1. The author believes that the key to improve the magnetic permeability of FeAl_ (16) alloy is to select the proper degree of Fe_3Al. Based on the dilation analysis of the FeAl_ (16) alloy (see Figure 1 in the original text). From this expansion analysis, there is a turning point near 500 ° C, and the slopes of the mean linear expansion coefficients above and below the turning point are quite different, indicating that alloys of different phases below 500 ° C, ie, FeAl? FeAl phases at 500 ° C change. This result is consistent with the phase diagrams of Fe-Al alloys. But this expansion points