Cobalt-base block amorphous soft magnetic alloy with high amorphous forming ability and preparation method thereof
A soft magnetic alloy and amorphous technology, which is applied in the field of cobalt-based bulk amorphous soft magnetic alloy and its preparation, can solve the problem of weak amorphous forming ability, poor amorphous forming ability of alloy components, and low amorphous forming ability, etc. question
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[0045] Example 1:
[0046] The 4mm diameter (Co 0.6 Fe 0.3 Ni 0.1 ) 69 (B 0.81 1Si 0.189 ) 26 Nb 5 The bulk amorphous alloy rod includes the following steps:
[0047] Step 1: Convert the alloy atomic percentage to weight percentage, weigh the weight of Fe, Co, Ni, B, Si and Nb elements with a purity of more than 99.5%, and set aside;
[0048] Step 2: Put the target ingredient raw materials weighed in step 1 into a vacuum arc melting furnace, and pump the vacuum to 5×10 -5 mbar, rush into the argon protective gas, keep the pressure of the melting furnace chamber at 500mbar, after the raw material is melted, continue to smelt for 5-10 minutes, after cooling to solidification, turn it over with a manipulator and repeat the smelting 3 to 5 times to obtain a uniform composition Of (Co 0.6 Fe 0.3 Ni 0.1 ) 69 (B 0.811 Si 0.189 ) 26 Nb 5 Master alloy ingot;
[0049] Step 3: Break the master alloy ingot obtained in step 2 into small pieces and place them in alcohol for ultrasonic cleaning. Put...
Example Embodiment
[0054] Example 2:
[0055] The copper mold casting method is used to prepare (Co 0.6 Fe 0.3 Ni 0.1 ) 67 (B 0.811 Si 0.189 ) 28 Nb 5 The bulk amorphous alloy rod includes the following steps:
[0056] Step 1: Convert the alloy atomic percentage to weight percentage, weigh the weight of Fe, Co, Ni, B, Si and Nb elements with a purity of more than 99.5%, and set aside;
[0057] Step 2: Put the target ingredient raw materials weighed in step 1 into a vacuum arc melting furnace, and pump the vacuum to 5×10 -5 mbar, rush into the argon protective gas, keep the pressure of the melting furnace chamber at 500mbar, after the raw material is melted, continue to smelt for 5-10 minutes, after cooling to solidification, turn it over with a manipulator and repeat the smelting 3 to 5 times to obtain a uniform composition Of (Co 0.6 Fe 0.3 Ni 0.1 ) 67 (B 0.811 Si 0.189 ) 28 Nb 5 Master alloy ingot;
[0058] Step 3: Break the master alloy ingot obtained in step 2 into small pieces and place them in alc...
Example Embodiment
[0063] Example 3:
[0064] The 5mm diameter (Co 0.6 Fe 0.3 Ni 0.1 ) 68 (B 0.811 Si 0.189 ) 27 Nb 5 The bulk amorphous alloy rod includes the following steps:
[0065] Step 1: Convert the alloy atomic percentage to weight percentage, weigh the weight of Fe, Co, Ni, B, Si and Nb elements with a purity of more than 99.5%, and set aside;
[0066] Step 2: Put the target ingredient raw materials weighed in step 1 into a vacuum arc melting furnace, and pump the vacuum to 5×10 -5 mbar, rush into the argon protective gas, keep the pressure of the melting furnace chamber at 500mbar, after the raw material is melted, continue to smelt for 5-10 minutes, after cooling to solidification, turn it over with a manipulator and repeat the smelting 3 to 5 times to obtain a uniform composition Of (Co 0.6 Fe 0.3 Ni 0.1 ) 68 (B 0.811 Si 0.189 ) 27 Nb 5 Master alloy ingot;
[0067] Step 3: Break the master alloy ingot obtained in step 2 into small pieces and place them in alcohol for ultrasonic cleaning. Put...
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