The present invention provides a high magnetic flux density soft magnetic amorphous alloy, it has a very high glass-forming ability in a high concentration of iron-based alloy composition range, a high saturation flux density 1.60T above, is low coercivity coercive force, there are effective permeability, and have a good glass forming ability and excellent mechanical strength and ductility, workability. The alloy containing iron, boron, silicon and phosphorus as an alloy element, the alloy composition is represented as FeaBbSicPd, when a, b, c, d when the atomic%, a, b, c and d satisfy the following formula: 81 = a = 87, 7 = b = 10,0 d = c c + d b, a + b + c + d = 100, saturation magnetic flux density 1.60T or more.
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机译：本发明提供了一种高磁通密度的软磁非晶合金，它在高浓度的铁基合金组成范围内具有很高的玻璃形成能力，在1.60T以上的高饱和磁通密度，低矫顽力，有有效的渗透性，并具有良好的玻璃成型能力和优良的机械强度和延展性，可加工性。含有铁，硼，硅和磷作为合金元素的合金，当a，b，c，d的原子％，a，b，c和d满足下式时，合金成分表示为FeaBbSicPd：81 < ＝ a ＜＝ 87，7 ＜＝ b ＜＝ 10，0 ＜d ＜＝ c ＜c + d ＜b，a + b + c + d ＜＝ 100，饱和磁通密度为1.60T以上。
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