Zr based amorphous alloy and manufacturing method thereof

A technology of zirconium-based amorphous alloys and amorphous alloys, applied in the field of zirconium-based amorphous alloys and their preparation, can solve problems such as insufficient reaction between rare earth elements and harmful elements, increased material production costs, and reduced critical size of amorphous alloys , to achieve the effect of ensuring amorphous characteristics and mechanical properties, huge production practical value, and reducing dosage

Active Publication Date: 2014-07-09
BYD CO LTD
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Problems solved by technology

[0007] Since the content of impurity gases or oxides and impurities in the alloy melt is usually not clear, in the prior art, the added rare earth elements are very high, and the content of rare earth elements is as high as 10% (refer to Patent Document 3), which greatly increases the material The cost of production, or the addition of insuff

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  • Zr based amorphous alloy and manufacturing method thereof
  • Zr based amorphous alloy and manufacturing method thereof
  • Zr based amorphous alloy and manufacturing method thereof

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preparation example Construction

[0037] like figure 1 As shown, the preparation method of the zirconium-based amorphous alloy according to the embodiment of the present invention comprises the following steps:

[0038] a) Weighing and mixing metal raw materials containing Zr, Al, Cu, M and R according to the amount required to form the composition of the above chemical formula (I), to obtain a mixed material.

[0039] Considering that the M and R elements are generally highly active elements, and in order to facilitate smelting and mixing with the master alloy, it is preferable to add them in the form of master alloys. Further preferably, the R element is introduced in the form of an intermediate alloy of R element and aluminum.

[0040] Preferably, the e satisfies 0

[0041] Here, it should be noted that, considering the burning loss of the R element mentioned in the following step b), when weighing the R element, the amount of the R element that needs to be weighed is the corresponding to the above...

Embodiment 1

[0051]According to the final composition of Zr52Al10Cu30Ni8Y0.08 (among them, the burning loss of Y element is 15%), weigh zirconium metal, aluminum metal, copper metal, nickel metal, aluminum yttrium metal with material purity greater than 99%, mix them and put them into induction In the smelting furnace, the vacuum degree is 0.1Pa, induction melting is carried out, and the Y element is adjusted through real-time composition detection so that the burning loss of the Y element is 15% (1% composition deviation can be allowed), and the alloy is cast Amorphous rods of different sizes and amorphous plates with a wall thickness of 1.5mm.

[0052] The non-wafer rods of different sizes are processed into wafers of different specifications for critical dimension testing. The critical dimension is measured on the D / Max2500PC XRD diffractometer of Japan Rigaku Co., Ltd. The diffraction angle is 2theta between 20°~60 °, the scanning speed is 4° / min, the scanning voltage is 40Kv, and the ...

Embodiment 2

[0057] According to the final composition of Zr52Al10Cu30Ni8Er0.08 (the burning loss of Er element is 12%), weigh zirconium metal, aluminum metal, copper metal, nickel metal and erbium metal with a material purity greater than 99% and mix them, put them into the induction In the smelting furnace, the vacuum degree is 0.1Pa, induction melting is carried out, and the Er element is adjusted through real-time composition detection so that the burning loss of Er element is 12% (1% composition deviation can be allowed), and the alloy is cast Amorphous rods of different sizes and amorphous plates with a wall thickness of 1.5mm.

[0058] The non-wafer rods of different sizes are processed into wafers of different specifications for critical dimension testing. The critical dimension is measured on the D / Max2500PC XRD diffractometer of Japan Rigaku Co., Ltd. The diffraction angle is 2theta between 20°~60 °, the scanning speed is 4° / min, the scanning voltage is 40Kv, and the current is 2...

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Abstract

The invention provides a Zr based amorphous alloy and a manufacturing method thereof. The components of the Zr based amorphous alloy accord with the following chemical formula (I): ZraCubAlcMdRe (I), wherein M represents one or more of Ni, Fe, Co, Mn, Cr, Ti, Hf, Nb, Be, Si and Ca, R represents one or more of Sc, Y and Er, a, b, c, d and e are atomic percentages, a is greater than or equal to 40 and smaller than or equal to 70, b is greater than or equal to 15 and smaller than or equal to 35, c is greater than or equal to 5 and smaller than or equal to 15, d is greater than or equal to 5 and smaller than or equal to 15, e is greater than 0 and smaller than 0.3, and a+b+c+d+e=100. The manufacturing method of the amorphous alloy comprises the steps of: a) weighing metal raw materials containing Zr, Al, Cu, M and R respectively according to composition of the chemical formula (I) and conducting mixing to obtain a mixed material; b) placing the mixed material in a smelting furnace to undergo smelting so as to obtain a melt, with the burning loss amount of the R element being 5%-100% in terms of atomic percentage; and c) subjecting the melt to casting, thus obtaining the Zr based amorphous alloy. According to the manufacturing method, the dosages of rare earth elements are significantly reduced, and the amorphous characteristics and mechanical properties of the amorphous alloy are ensured.

Description

technical field [0001] The invention relates to a zirconium-based amorphous alloy and a preparation method thereof. Background technique [0002] Amorphous alloys appeared in the 1960s. The initial amorphous alloys are difficult to be practically applied because the critical size (the largest size for forming amorphous crystals) can only reach the micron level. However, material properties such as high strength, high hardness, corrosion resistance, and excellent high-temperature fluidity have attracted a large number of scientific researchers and have been widely studied. Amorphous alloys with large critical sizes and suitable for industrial production have been continuously developed. The critical size is gradually increasing. From the micron level to the millimeter level and even to the centimeter level. Generally speaking, amorphous alloys whose critical cooling rate is less than 500°C / s and whose critical size is greater than 1 mm are called bulk amorphous alloys. The...

Claims

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Application Information

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IPC IPC(8): C22C45/10C22C1/02
Inventor 张法亮汪玉琼
Owner BYD CO LTD
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