A zirconium-based amorphous alloy and its preparation method
A technology of zirconium-based amorphous alloy and amorphous alloy, applied in the field of amorphous alloy and its preparation, can solve the problems of small critical size and high density of zirconium-based amorphous alloy, and achieve the effect of large critical size
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[0019] The present invention also provides a method for preparing a zirconium-based amorphous alloy, the method comprising:
[0020] 1) Preparation of master alloy ingot: Under protective gas atmosphere, the amorphous alloy raw material is melted in a vacuum melting furnace, and then cooled and formed;
[0021] 2) Forming method: re-melting the master alloy ingot obtained in step 1), pouring the alloy solution into a forming mold by gravity casting, suction casting, spray casting or die casting to obtain an amorphous alloy;
[0022] Wherein, the addition amount of described amorphous alloy raw material including Zr, Ti, Be, M and R satisfies general formula Zr a Ti b be c m d R e The proportion of each component expressed, where a, b, c, d, e are atomic percentages; 25≤a≤35, 30≤b≤40, 10≤c≤25, 10≤d≤20, 0<e< 2, and a+b+c+d+e=100; the M is one or more of Co, Cu, Cr, Hf and Nb; the R is Pr, Nd, Sm, Gd, Tb, One or more of Dy and Y.
[0023] According to the method for prepar...
Embodiment 1
[0029] According to Zr 30 Ti 32 be 22 co 6 Cu 9 Pr is used for alloy proportioning, metal zirconium adopts industrial grade HZr-1 sponge zirconium, titanium adopts industrial grade sponge titanium with a purity greater than 99%, beryllium adopts industrial beryllium ingots with a purity of 99%, cobalt adopts cobalt ingots with a purity greater than 99%, and copper 1# waste copper is used, the purity is about 97%, and praseodymium metal with a purity of 99% is used for praseodymium.
[0030] After the alloy ratio is completed, it is put into a vacuum melting furnace, vacuumed to 10Pa, and filled with 99.99% argon for atmosphere protection, and then alloyed and smelted. The smelting temperature is 1200°C, and the smelting time is 15Min. The body was cast into a copper mold to obtain amorphous alloy A1 with a diameter ranging from 5 mm to 30 mm.
Embodiment 2
[0032] According to Zr 25 Ti 35 be 25 Cr 5 Cu 9Nd is used for alloy proportioning, industrial-grade HZr-1 zirconium sponge is used for metal zirconium, industrial-grade sponge titanium with a purity greater than 99% is used for titanium, industrial beryllium ingot with a purity of 99% is used for beryllium, chromium ingot with a purity greater than 99% is used for chromium, and chromium ingot with a purity greater than 99% is used for chromium. 1# waste copper is used, the purity is about 97%, and the neodymium is made of neodymium metal with a purity of 99%.
[0033] After the alloy ratio is completed, it is put into a vacuum melting furnace, vacuumed to 10Pa, and filled with 99.99% argon for atmosphere protection, and then alloyed and smelted. The smelting temperature is 1200°C, and the smelting time is 15Min. The body was cast into a copper mold to obtain amorphous alloy A2 with a diameter ranging from 5 mm to 30 mm.
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