Method for preparing zirconium-based amorphous alloy

A technology of zirconium-based amorphous alloys and amorphous alloys, which is applied in the field of preparation of zirconium-based amorphous alloys, can solve the problems of amorphous alloy segregation, adverse effects, and limit the use range of amorphous alloys, and achieve the effect of reducing oxygen content

Active Publication Date: 2011-06-01
BYD CO LTD
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  • Description
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  • Application Information

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Problems solved by technology

[0004] At present, the methods of reducing the oxygen content in amorphous alloys mainly include the use of high-purity raw materials to prepare amorphous alloys, and the use of high-purity raw materials reduces the oxygen content of amorphous alloys, but at the same time increases the production cost of amorphous alloys , which limits t

Method used

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Examples

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preparation example Construction

[0015] The invention provides a method for preparing an amorphous alloy, the method comprising:

[0016] a. Derusting, degreasing and cleaning the zirconium-based amorphous alloy ingot to obtain a processed zirconium-based amorphous alloy ingot;

[0017] b. Cast the treated zirconium-based amorphous alloy ingot, and after crushing, add deoxidizer, mix, and conduct vacuum melting. The melting temperature is 250-350℃ above the melting point of the zirconium-based amorphous alloy, and the melting time is 5- 20min;

[0018] c. Lower the temperature of the smelted mixture to 200-300°C above the melting point of the zirconium-based amorphous alloy, and let it stand for heat preservation to obtain a molten mixture;

[0019] d. During the process of static heat preservation of the melt, the argon gas is introduced. The ventilation time is 5-30min and the flow rate is 2-10L / min. After the argon is introduced, the melt is injected into the copper mold after passing through the filter plate and ...

Embodiment 1

[0032] The general formula of alloy composition is Zr 41 Ti 14 Cu 12.5 Ni 10 Be 22.5 (The purity of Zr is 99.0%, the purity of Ti is 99.0%, the purity of Cu is 99.0%, the purity of Ni is 99.1%, and the purity of Be is 99.0%.) , Prepared into a block with an average size of 5 cm, and weighed 2000 g. The following processing is carried out in sequence. 1) Derusting: Put the bulk amorphous alloy into a mixed solution of 2% by weight, 20ml / L phosphoric acid and 1% by weight, 15g / L sodium phosphate. The bulk amorphous alloy is pickled for 1 minute, then ultrasonically cleaned for 5 minutes, and then rinsed twice with deionized water; 2) Oxidation removal: Put the bulk amorphous alloy into 4% by weight, and the concentration 15ml / L of oxalic acid and 3% by weight in an acetic acid solution with a concentration of 15ml / L stand for 2 minutes, and then rinse with deionized water for 3 times; 3) Degreasing: Put the above-treated waste into degreasing In the liquid, the composition of t...

Embodiment 2

[0035] Prepare amorphous alloy ingot samples according to the same method as in Example 1, except that the deoxidizer used in this example is magnesium and zirconium carbide, and the weight ratio of magnesium to zirconium carbide is 1:1 , And finally obtained amorphous alloy ingot sample A2.

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Abstract

The invention provides an amorphous alloy preparation method. The method comprises the following steps of: a, derusting, degreasing and cleaning a zirconium-based amorphous alloy cast ingot to obtain a processed zirconium-based amorphous alloy; b, after crushing the processed zirconium-based amorphous alloy, adding a deoxidizing agent for mixing, and performing vacuum melting, wherein the meltingtemperature is 250 to 350 DEG C over the melting point temperature of the zirconium-based amorphous alloy, and the melting time is 5 to 20 minutes; c, cooling a molten mixture to the temperature of 200 to 300 DEG C over the melting point of the zirconium-based amorphous alloy, standing and keeping the temperature to obtain a molten mixture; and d, introducing argon in the process of standing and keeping the temperature of the molten mixture, wherein the argon introducing time is 5 to 30 minutes and the flow rate is 2 to 10 L/min; and after finishing introducing the argon, injecting the moltenmixture into a copper mould through a filter plate, and cooling the molten mixture to room temperature at the cooling rate of 10 to 1,000 DEG C/s under the condition of protective atmosphere. The zirconium-based amorphous alloy prepared by the method has the advantages of low oxygen content and high amorphous forming capacity.

Description

Technical field [0001] The invention relates to a method for preparing a zirconium-based amorphous alloy. Background technique [0002] Amorphous metal materials have excellent properties due to their special structure-long-range disorder and short-range orderly: high strength and hardness, wear resistance, corrosion resistance, large elastic limit and high electrical resistance. It also exhibits excellent superconductivity and low magnetic loss. Therefore, amorphous metal materials are recognized as the most promising new structural materials and are widely used in many fields such as machinery, IT electronics, and military industries. The appearance of bulk amorphous materials has greatly promoted the research and application of amorphous materials. At present, there are relatively few component systems in the known amorphous systems that have both good amorphous forming ability and superior mechanical properties. As one of these more balanced systems, zirconium-based amorphou...

Claims

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Application Information

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IPC IPC(8): C22C1/02C22C45/10B22D27/04
Inventor 朱建军高宽菅永喜
Owner BYD CO LTD
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