A nano-precipitate enhanced body-centered cubic fe x crnial 0.5 ti 0.5 high entropy alloy
A technology of nano-precipitate phase and high-entropy alloy, which is applied in the field of nano-precipitation phase strengthening body-centered cubic high-entropy alloy, can solve the problems of high content of transition group, increase the cost of alloy manufacturing, limit practical application, etc. The performance method is simple and effective, and the preparation cost is low
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Embodiment 1
[0039] Fe in this example 2 CrNiAl 0.5 Ti 0.5 (molar ratio), namely Fe2 alloy, the raw material adopts sponge Ti of industrial purity, and the purity of other elements is not less than 99.9wt.%. Arrange the raw materials in the order of decreasing melting point from top to bottom, and use a mechanical pump and a molecular pump to pump the pressure in the furnace to 1.0×10 -3 Pa~3.0×10 -3 Pa, high-purity Ar gas was introduced to about 0.05MPa, and the master alloy ingot was prepared by arc melting under the protection of argon gas, and the alloy ingot was repeatedly smelted five times. The alloy plates with width, thickness and length of 10mm, 5mm and 80mm were obtained by casting in a reversing furnace. The alloy plate was cut by wire EDM and fast saw to obtain a compressed pattern with a size of φ2 mm × 4 mm, and the compressed pattern was ground and polished with sandpaper.
[0040] The Fe2 as-cast alloy plate was sliced to a thickness of about 1 mm, and the as-cast s...
Embodiment 2
[0043] Fe in this example 4 CrNiAl 0.5 Ti 0.5 (molar ratio), namely Fe4 alloy, the raw material adopts sponge Ti of industrial purity, and the purity of other elements is not less than 99.9wt.%. Arrange the raw materials in the order of decreasing melting point from top to bottom, and use a mechanical pump and a molecular pump to pump the pressure in the furnace to 1.0×10 -3 Pa~3.0×10 -3 Pa, high-purity Ar gas was introduced to about 0.05MPa, and the master alloy ingot was prepared by arc melting under the protection of argon gas, and the alloy ingot was repeatedly smelted five times. The alloy plates with width, thickness and length of 10mm, 5mm and 80mm were obtained by casting in a reversing furnace. The size of the compressed pattern is φ2mm × 4mm by cutting the alloy plate by wire electric discharge cutting and fast saw, and grinding and polishing the compressed pattern with sandpaper.
[0044] The Fe4 as-cast alloy plate was sliced to a thickness of about 1 mm, an...
Embodiment 3
[0047] Fe in this example 6 CrNiAl 0.5 Ti 0.5 (molar ratio), namely Fe6 alloy, the raw material adopts sponge Ti of industrial purity, and the purity of other elements is not less than 99.9wt.%. Arrange the raw materials in the order of decreasing melting point from top to bottom, and use a mechanical pump and a molecular pump to pump the pressure in the furnace to 1.0×10 -3 Pa~3.0×10 -3 Pa, high-purity Ar gas was introduced to about 0.05MPa, and the master alloy ingot was prepared by arc melting under the protection of argon gas, and the alloy ingot was repeatedly smelted five times. The alloy plates with width, thickness and length of 10mm, 5mm and 80mm were obtained by casting in a reversing furnace. The size of the compressed pattern is φ2mm × 4mm by cutting the alloy plate by wire electric discharge cutting and fast saw, and grinding and polishing the compressed pattern with sandpaper.
[0048] The Fe6 as-cast alloy plate was sliced to a thickness of about 1 mm, an...
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