Abstract
Glassy [(Fe0.8Co0.1Ni0.1)0.75B0.2Si0.05]96Nb4 alloy rods with glass transition temperature of 835 K, followed by a large supercooled liquid region of 55 K were produced in the diameter range up to 2 mm by copper mold casting. The glassy alloy rods exhibit super-high true fracture strength of 4225 MPa combined with elastic strain of 0.02 and true plastic strain of 0.005. The super-high strength alloy simultaneously exhibits high magnetization of 1.1 T, low coercivity of 3 A/m, and high permeability of 1.8 × 104 at 1 kHz. The success of synthesizing a super-high strength Fe-based bulk glassy alloy with some compressive plastic strain and good soft magnetic properties is encouraging for future development of Fe-based bulk glassy alloys as new engineering and functional materials.
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