[Object] To provide in particular an Fe-based amorphous alloy powder which has a low glass transition temperature (Tg) and an excellent corrosion resistance and which is used for a dust core or a coil-embedded dust core, each having high magnetic characteristics. [Solution] An Fe-based amorphous alloy powder of the present invention has a composition represented by (Fe 100-a-bc-x-y-z-t Ni a Sn b Cr c P x C y B z Si t ) 100-± M ± . In this composition, 0 at%‰¤a‰¤10 at%, 0 at%‰¤b‰¤3 at%, 0 at%‰¤c‰¤6 at%, 6.8 at%‰¤x‰¤10.8 at%, 2.2 at%‰¤y‰¤9.8 at%, 0 at%‰¤z‰¤4.2 at%, and 0 at%‰¤t‰¤3.9 at% hold, a metal element M is at least one selected from the group consisting of Ti, Al, Mn, Zr, Hf, V, Nb, Ta, Mo, and W, and the addition amount ± of the metal element M satisfies 0.04 wt%‰¤±‰¤0.6 wt%. Accordingly, besides a decrease of Tg, an excellent corrosion resistance and high magnetic characteristics can be obtained.
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机译：尤其是，本发明提供玻璃化转变温度（Tg）低，耐腐蚀性优异的Fe基非晶质合金粉末，其用于磁特性高的压粉磁芯或埋入线圈的压粉磁芯中。 。 [解决方案]本发明的Fe基非晶态合金粉末的组成为（Fe 100-a-bc-x-y-z-t Ni a Sn b Cr c P x C y B z Si t）100-±M±。在该组成中，0 at%‰a‰10 at％，0 at%‰b‰3 at％，0 at%‰c‰¤6at％，6.8 at%‰x‰10.8 at金属元素M是选自以下的至少一种：金属元素M，2.2原子％，9.8原子％，0原子％，4.2原子％和0原子3.9％。 Ti，Al，Mn，Zr，Hf，V，Nb，Ta，Mo，W组成的组中，金属元素M的添加量±满足0.04重量％±±0.6重量％。因此，除了降低Tg之外，还可以获得优异的耐腐蚀性和高磁特性。
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