A kind of preparation method of anti-helium ion sputtering vanadium alloy
A technology of vanadium alloy and helium ion, which is applied to the preparation of vanadium alloy, a candidate structural material of fusion reactor, and the preparation field of vanadium alloy, can solve the problems such as being unsuitable for large-scale production, affecting the properties of alloy, easy to oxidize, etc. The effect of reducing skin phenomenon, improving yield and cost-effective
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[0050] The invention provides a novel anti-helium ion sputtering vanadium alloy, which is a V-Cr-Ti-Y alloy, and the weight percentages of various components are: Cr (chromium): 3.0-6.5%, Ti (titanium) : 3.0 to 6.5%, Y (yttrium): 0.1 to 2.0%, V (vanadium): balance.
[0051] Such as figure 1 Shown, the present invention prepares the method for this kind of novel anti-helium ion sputtering vanadium alloy as follows:
[0052] (1) Using pure vanadium dendrites, pure titanium particles, pure chromium particles, and titanium-yttrium master alloy as raw materials, after surface pretreatment, prepare materials respectively according to the weight percentage of the vanadium alloy composition;
[0053] (2) Mix various raw materials, then use non-consumable arc melting furnace or consumable arc melting furnace to melt the mixed raw materials, and make V-Cr-Ti-Y alloy ingots through casting; this implementation In the example, the smelting and pouring of the alloy are carried out under ...
example 1
[0064] (1) Select the V-4.4Cr-4.3Ti-0.3Y alloy composition ratio to form a vanadium alloy. The preparation method includes the following steps:
[0065] 1) Ingredients: Pure V dendrites (99.9wt.%), pure Ti particles (99.9wt.%), pure Cr particles (99.9wt.%), Ti-20Y master alloy (the actual detection content of yttrium is 20.3wt.%) ) is alloying raw material, carries out batching according to the weight percentage of above-mentioned vanadium alloy;
[0066] 2) Melting: Melting, stirring, cooling and solidifying in a non-consumable arc melting furnace under an argon protective atmosphere with a purity higher than 99.99% to prepare alloy ingots;
[0067] 3) Homogenization treatment: cast the alloy ingot obtained in the previous step in a vacuum degree better than 1×10 -3 Homogenization annealing under the condition of Pa, the annealing temperature is 900°C, the time is 10 hours, and the heating time is 90min;
[0068] 4) Sheath: Prepare a stainless steel sheath for encapsulating...
example 2
[0076] (1) Select the V-4.4Cr-4.3Ti-0.5Y alloy composition ratio to form a vanadium alloy. The preparation method includes the following steps:
[0077] 1) Ingredients: Pure V dendrites (99.9wt.%), pure Ti particles (99.9wt.%), pure Cr particles (99.9wt.%), Ti-20Y master alloy (the actual detection content of yttrium is 20.3wt.%) ) is alloying raw material, carries out batching according to the weight percentage of above-mentioned vanadium alloy;
[0078] 2) Melting: Melting, stirring, cooling and solidifying in a non-consumable arc melting furnace under an argon protective atmosphere with a purity higher than 99.99% to prepare alloy ingots;
[0079] 3) Homogenization treatment: cast the alloy ingot obtained in the previous step in a vacuum degree better than 1×10 -3 Homogenization annealing under the condition of Pa, the annealing temperature is 900°C, the time is 10 hours, and the heating time is 90min;
[0080] 4) Sheath: Prepare a stainless steel sheath for encapsulating...
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