Abstract
High glass-forming ability and excellent soft-magnetic and mechanical properties were simultaneously achieved in (Fe,Co)–Mo–(P,C,B,Si) bulk glassy alloys (BGAs). The large BGA with a maximal diameter up to 6mm was formed by copper mold casting in the alloys, which is the largest size in FePC BGA system. The BGA with a proper content of Co exhibits superhigh initial effective permeability of over 360 90 at 1kHz and saturation magnetization of over 1.0T. The fracture strength of the BGA reaches 3370MPa. This bulk specimen undergoes a plastic strain exceeding 1%, which is the largest for such large ferromagnetic BGAs.
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