A kind of high hardness al-cr-ti-v-cu light high entropy alloy and preparation method thereof
An al-cr-ti-v-cu, high-entropy alloy technology, applied in the field of alloys, can solve the problems of high room temperature brittleness and limited application, and achieve good thermal stability, high hardness, and improved hardness
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Embodiment 1
[0030] In the high-hardness Al-Cr-Ti-V-Cu light high-entropy alloy in this embodiment, the atomic percentage of each element is as follows: Al 24%, Cr 24%, Ti 23%, V 23%, Cu 6%, expressed as Al 24 Cr 24 Ti 23 V 23 Cu 6 Lightweight high-entropy alloys.
[0031] above Al 24 Cr 24 Ti 23 V 23 Cu 6 The preparation method of light high entropy alloy is as follows:
[0032] (1) Prepare the metal raw materials Al, Cr, Ti, V, Cu and metal titanium blocks according to the ratio, and polish the raw materials and metal titanium blocks with sandpaper to remove impurities and oxides on the surface. The purity of each metal raw material is higher than 99.9wt%, using acetone as a cleaning solvent after grinding, oscillating cleaning for 5min in an ultrasonic cleaning machine with a power of 180W and a frequency of 40KHz, and drying.
[0033] (2) In a non-consumable vacuum arc melting furnace, the metal titanium block is first melted under the protection of argon gas, and the residua...
Embodiment 2
[0036] In the high-hardness Al-Cr-Ti-V-Cu light high-entropy alloy in this embodiment, the atomic percentage of each element is as follows: Al21%, Cr 21%, Ti 22%, V 23%, Cu 13%, expressed as Al 21 Cr 21 Ti 22 V 23 Cu 13 Lightweight high-entropy alloys.
[0037] above Al 21 Cr 21 Ti 22 V 23 Cu 13 The preparation method of light high entropy alloy is as follows:
[0038] (1) Prepare the metal raw materials Al, Cr, Ti, V, Cu and metal titanium blocks according to the ratio, and polish the raw materials and metal titanium blocks with sandpaper to remove impurities and oxides on the surface. The purity of each metal raw material is higher than 99.9wt%, using acetone as a cleaning solvent after grinding, oscillating cleaning for 5min in an ultrasonic cleaning machine with a power of 180W and a frequency of 40KHz, and drying.
[0039](2) In a non-consumable vacuum arc melting furnace, the metal titanium block is first melted under the protection of argon gas, and the residu...
Embodiment 3
[0042] In the high-hardness Al-Cr-Ti-V-Cu light high-entropy alloy in this embodiment, the atomic percentage of each element is as follows: Al21%, Cr 20%, Ti 21%, V 20%, Cu 18%, expressed as Al 21 Cr 20 Ti 21 V 20 Cu 18 Lightweight high-entropy alloys.
[0043] above Al 21 Cr 20 Ti 21 V 20 Cu 18 The preparation method of light high entropy alloy is as follows:
[0044] (1) Prepare the metal raw materials Al, Cr, Ti, V, Cu and metal titanium blocks according to the ratio, and polish the raw materials and metal titanium blocks with sandpaper to remove impurities and oxides on the surface. The purity of each metal raw material is higher than 99.9wt%, using acetone as a cleaning solvent after grinding, oscillating cleaning for 5min in an ultrasonic cleaning machine with a power of 180W and a frequency of 40KHz, and drying.
[0045] (2) In a non-consumable vacuum arc melting furnace, the metal titanium block is first melted under the protection of argon gas, and the resid...
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