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Centimeter grade plastic Cu-(Zr,Ti)-Al bulk amorphous alloy

An amorphous alloy, centimeter-level technology, which is applied in the field of Cu--Al bulk amorphous alloys, can solve problems restricting the application of amorphous metals, and achieve the effects of good plasticity, high hardness, and broad application prospects

Inactive Publication Date: 2007-08-08
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Amorphous metals do not have the slip mechanism of crystalline metals. When the applied stress reaches the fracture strength, they will suddenly break, leading to catastrophic accidents, which restricts the application of amorphous metals in the field of structural materials.

Method used

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  • Centimeter grade plastic Cu-(Zr,Ti)-Al bulk amorphous alloy
  • Centimeter grade plastic Cu-(Zr,Ti)-Al bulk amorphous alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] This embodiment adopts suction casting method to prepare the Cu of diameter 6mm 45 Zr 46 al 7 Ti 2 Bulk amorphous alloys (amorphous alloys whose size reaches the order of millimeters are called bulk amorphous alloys).

[0017] Step 1: Put 99.95% pure Cu, 99.87% pure Zr, 99.5% pure Al and 99.98 pure Ti into Cu 45 Zr 46 al 7 Ti 2 The ratio is arc smelted in an argon atmosphere adsorbed by zirconium to obtain a uniformly mixed alloy ingot.

[0018] Step 2: Melt the ingot obtained in Step 1 on a water-cooled copper mold in an argon-protected melting furnace.

[0019] Step 3: inject the alloy liquid obtained in step 2 into a water-cooled copper mold with an inner diameter of 6 mm by using the pressure difference. A bulk amorphous alloy is produced.

[0020] Step 4: Characterize the bulk amorphous structure by X-ray diffraction method, and Fig. 1 is the X-ray diffraction diagram of the sample.

[0021] Step 5: Obtain the thermodynamic parameters of the bulk sample u...

Embodiment 2

[0027] This embodiment adopts suction casting method to prepare the Cu of diameter 10mm 45 Zr 46.5 al 7 Ti 1.5 Bulk amorphous alloys (amorphous alloys whose size reaches the order of millimeters are called bulk amorphous alloys).

[0028] Step 1: Put 99.95% pure Cu, 99.87% pure Zr, 99.5% pure Al and 99.98 pure Ti into Cu 45 Zr 46.5 al 7 Ti 1.5 The ratio is arc smelted in an argon atmosphere adsorbed by zirconium to obtain a uniformly mixed alloy ingot.

[0029] Step 2: Melt the ingot obtained in Step 1 on a water-cooled copper mold in an argon-protected melting furnace.

[0030] Step 3: inject the alloy liquid obtained in Step 2 into a water-cooled copper mold with an inner diameter of 10 mm by using the pressure difference. A bulk amorphous alloy is produced.

[0031] Step 4: Characterize the bulk amorphous structure by X-ray diffraction.

[0032] Step 5: Obtain the thermodynamic parameters of the bulk sample using differential scanning calorimetry.

Embodiment 3

[0034] This embodiment adopts suction casting method to prepare the Cu of diameter 10mm 45 Zr 47.5 al 7 Ti 0.5 Bulk amorphous alloys (amorphous alloys whose size reaches the order of millimeters are called bulk amorphous alloys).

[0035] Step 1: Put 99.95% pure Cu, 99.87% pure Zr, 99.5% pure Al and 99.98 pure Ti into Cu 45 Zr 47.5 al 7 Ti 0.5 The ratio is arc smelted in an argon atmosphere adsorbed by zirconium to obtain a uniformly mixed alloy ingot.

[0036] Step 2: Melt the ingot obtained in Step 1 on a water-cooled copper mold in an argon-protected melting furnace.

[0037] Step 3: inject the alloy liquid obtained in Step 2 into a water-cooled copper mold with an inner diameter of 10 mm by using the pressure difference. A bulk amorphous alloy is produced.

[0038] Step 4: Characterize the structure of the bulk amorphous by X-ray diffraction

[0039] Step 5: Obtain the thermodynamic parameters of the bulk sample using differential scanning calorimetry.

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Abstract

The invention discloses a non-crystal alloy of centimetre grade plastic Cu-(Zr, Ti)-Al system block, which possesses 50-100% non-crystal phase, wherein the structural formula of system alloy is Cu45Zr48-xAl7Tix (x is atom percentage of Ti element, which is between 0.5 and 6).

Description

technical field [0001] The invention relates to the field of amorphous alloys, in particular to Cu-(Zr, Ti)-Al bulk amorphous alloys. Background technique [0002] Amorphous alloys are a new class of alloy materials whose atomic arrangement is not periodic or symmetrical. Due to their special microstructure, they have superior mechanical, physical, chemical and magnetic properties, such as high strength, high hardness, wear resistance and corrosion resistance. These superior properties make amorphous alloys have potential applications in many fields. [0003] At the same time, amorphous alloys also have their own weaknesses, which limit its application. The main difficulties faced in the application of amorphous alloys are: 1) preparation of large-sized amorphous alloys. Metals and alloy liquids tend to transform into crystalline materials with regular arrangement of atoms during the cooling process. In order to obtain amorphous alloys with long-range disordered arrangeme...

Claims

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Application Information

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IPC IPC(8): C22C45/10
Inventor 蒋建中陈连义姜清奎丁少庆张华革伍建中
Owner ZHEJIANG UNIV
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