摘要
Fe83（Cox,Niy）（B11Si2P3C1）1-x,y/17（x,y=1–3）amorphous alloys with high saturation magnetic flux density（Bs）and excellent soft-magnetic properties were developed and then the microalloying and clustering effects were explored.The microalloying of Co and Ni improves the Bsfrom 1.65 T to 1.67–1.72 T and 1.66–1.68 T,respectively.The Ni-doped alloys exhibit better soft-magnetic properties,containing a low coercivity（Hc） of about 5.0 A/m and a high Effective permeability（μe）of（8–10）×10^3,whereas the microalloying of Co leads to a deteriorative Hc of 5.0–13.0 A/m and a μeof（5–8）×10^3.Moreover,microalloying of Ni can increase the ductile-brittle transition（DBT）temperature of the ribbons,while a totally opposite effect is found in the Co-doped alloys.The formation of dense α-Fe（Co,Ni）clusters during annealing process is used to explain the distinct effects of Co and Ni microalloying on the magnetic properties and bending toughness.
Fe83（Cox,Niy）（B11Si2P3C1）1-x,y/17（x,y=1–3）amorphous alloys with high saturation magnetic flux density（Bs）and excellent soft-magnetic properties were developed and then the microalloying and clustering effects were explored.The microalloying of Co and Ni improves the Bsfrom 1.65 T to 1.67–1.72 T and 1.66–1.68 T,respectively.The Ni-doped alloys exhibit better soft-magnetic properties,containing a low coercivity（Hc） of about 5.0 A/m and a high Effective permeability（μe）of（8–10）×10^3,whereas the microalloying of Co leads to a deteriorative Hc of 5.0–13.0 A/m and a μeof（5–8）×10^3.Moreover,microalloying of Ni can increase the ductile-brittle transition（DBT）temperature of the ribbons,while a totally opposite effect is found in the Co-doped alloys.The formation of dense α-Fe（Co,Ni）clusters during annealing process is used to explain the distinct effects of Co and Ni microalloying on the magnetic properties and bending toughness.
基金
mainly supported by the National Natural Science Foundation of China (Grant Nos.51601206,51671206)
Ningbo International Cooperation Projects (Grant No.2015D10022)
Ningbo Major Project for Science and Technology (Grant No.201401B1003003)
