Er-containing Al-based bulk metallic glass alloy with large supercooling liquid phase region
A supercooled liquid phase, metallic glass technology, applied in the field of new materials, to achieve the effects of good mechanical properties, low glass turning temperature, and large glass forming ability
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[0017] Example 1
[0018] Al 85 Ni 6.8 Co 2.2 Er 4 La 2 Preparation, structure and performance testing of bulk metallic glass alloys:
[0019] Step 1: Use Al, Ni, Co, Er, and La raw materials with a purity greater than 95 wt.% for compounding according to the composition expression.
[0020] Step 2: Preparation of the master alloy ingot: Put the well-proportioned raw materials into the copper crucible of the non-consumable electric arc furnace, and vacuum to 2×10 -3 Pa, after filling in argon gas, arc smelting and alloy smelting 4 times repeatedly to obtain a master alloy ingot with uniform composition.
[0021] Step 3: Preparation of metallic glass powder: Load the master alloy ingot into the powder making equipment, and vacuum to 2×10 -3 Pa is filled with argon gas, and the master alloy is heated to a molten state by high-frequency induction melting. Turn on the spray switch to pass the molten metal liquid through the high-pressure argon gas, and use the high-pressure gas to spray t...
Example Embodiment
[0028] Example 2
[0029] Al 85 Ni 6.8 Co 2.2 Er 3 La 3 Preparation, structure and performance testing of bulk metallic glass alloys:
[0030] (1) Al, Ni, Co, Er and La raw materials with a purity greater than 95wt.% are used for compounding according to the composition expression;
[0031] (2) The implementation steps of master alloy ingot preparation, metal glass powder and bar preparation, and alloy performance testing are the same as in Example 1. The detailed data are listed in the attached table.
Example Embodiment
[0032] Example 3
[0033] Al 86 Ni 6 Co 2 Er 4 La 2 Preparation, structure and performance testing of bulk metallic glass alloys:
[0034] (1) Al, Ni, Co, Er and La raw materials with a purity greater than 95wt.% are used for compounding according to the composition expression;
[0035] (2) The implementation steps of master alloy ingot preparation, metal glass powder and bar preparation, and alloy performance testing are the same as in Example 1. The detailed data are listed in the attached table.
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