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A centimeter-level Zr-based bulk amorphous alloy and its preparation and application methods

An amorphous alloy, centimeter-scale technology, applied in centimeter-scale Zr-based bulk amorphous alloys and their preparation, application fields, can solve problems such as poor corrosion resistance, improve corrosion resistance, improve amorphous formation ability, and widen The effect of the application foreground

Inactive Publication Date: 2016-08-17
FUJIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problem that the current Zr-based amorphous alloy system with high amorphous forming ability and high plasticity has poor corrosion resistance, and provides a Zr-Al with high amorphous forming ability, high strength and toughness and high corrosion resistance at the same time. -Ni-Ag bulk amorphous alloy, and at the same time provide the preparation method of the bulk amorphous alloy, and the method of using the bulk amorphous alloy to prepare thin strips and rods

Method used

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  • A centimeter-level Zr-based bulk amorphous alloy and its preparation and application methods
  • A centimeter-level Zr-based bulk amorphous alloy and its preparation and application methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] This embodiment adopts copper mold casting method to prepare the Zr that diameter is 10mm 58 al 14 Ni 19.6 Ag 8.4 bulk amorphous alloy.

[0054] Step 1: Weigh each element

[0055] Calculate the weight of each element related to it according to the number of atoms required;

[0056] Step 2: Smelting Zr 58 al 14 Ni 19.6 Ag 8.4 Master Alloy

[0057] Put the required raw materials weighed in step 1 into the vacuum smelting furnace, and adjust the vacuum degree to 5×10 -3 Pa, filled with argon protective gas, the argon pressure is 0.05MPa; adjust the current 50-200A, melting temperature 1000-2000K; repeated smelting 4 times or more, after cooling with the furnace to get evenly mixed Zr-Al-Ni -Ag master alloy;

[0058] Step 3: Prepare Zr with a diameter of 10mm 58 al 14 Ni 19.6 Ag 8.4 bulk amorphous alloy

[0059] Put the master alloy prepared in step 2 into the induction furnace of the rapid solidification device, and adjust the vacuum degree to 5×10 -3 Pa,...

Embodiment 2

[0067] This embodiment adopts copper mold casting method to prepare the Zr that diameter is 20mm 56 al 16 Ni 19.6 Ag 8.4 bulk amorphous alloy.

[0068] Step 1: Weigh each element

[0069] Calculate the weight of each element related to it according to the number of atoms required;

[0070] Step 2: Smelting Zr 56 al 16 Ni 19.6 Ag 8.4 Master Alloy

[0071] Put the required raw materials weighed in step 1 into the vacuum smelting furnace, and adjust the vacuum degree to 5×10 -3 Pa, filled with argon protective gas, the argon pressure is 0.05MPa; adjust the current 50-200A, melting temperature 1000-2000K; repeated smelting 4 times or more, after cooling with the furnace to get evenly mixed Zr-Al-Ni -Ag master alloy;

[0072] Step 3: Prepare Zr with a diameter of 20mm 56 al 16 Ni 19.6 Ag 8.4 bulk amorphous alloy

[0073] Put the master alloy prepared in step 2 into the induction furnace of the rapid solidification device, and adjust the vacuum degree to 5×10 -3 Pa,...

Embodiment 3

[0081] This embodiment adopts copper mold casting method to prepare the Zr that diameter is 14mm 54 al 16 Ni 22.5 Ag 7.5 bulk amorphous alloy.

[0082] Step 1: Weigh each element

[0083] Calculate the weight of each element related to it according to the number of atoms required;

[0084] Step 2: Smelting Zr 54 al 16 Ni 22.5 Ag 7.5 Master Alloy

[0085] Put the required raw materials weighed in step 1 into the vacuum smelting furnace, and adjust the vacuum degree to 5×10 -3 Pa, filled with argon protective gas, the argon pressure is 0.05MPa; adjust the current 50-200A, melting temperature 1000-2000K; repeated smelting 4 times or more, after cooling with the furnace to get evenly mixed Zr-Al-Ni -Ag master alloy;

[0086] Step 3: Prepare Zr with a diameter of 14mm 54 al 16 Ni 22.5 Ag 7.5 bulk amorphous alloy

[0087] Put the master alloy prepared in step 2 into the induction furnace of the rapid solidification device, and adjust the vacuum degree to 5×10 -3 Pa,...

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Abstract

The invention discloses a centimeter-sized high-toughness and high-corrosion resistance Zr-based bulk amorphous alloy, which specifically has a chemical formula ZraAlbNicAgd, wherein a is more than 54 and less than 58 atomic percent, b is more than 12 and less than 18 atomic percent, c is more than 18.2 and less than 24 atomic percent, and d is more than 5.6 and less than 9 atomic percent, and a+b+c+d=100. The invention also discloses a preparation method for the Zr-based bulk amorphous alloy and a method for preparing a thin strip and a rod by utilizing the amorphous alloy. According to the Zr-based bulk amorphous alloy and the methods, elemental Ni and Ag are selected as components of the alloy, so that the corrosion resistance is greatly improved, the amorphous alloy formability of a Zr-Al-Ni alloy is improved, and the prepared bulk amorphous alloy is ultrahigh in formability; the Zr-based amorphous alloy also has the characteristics of high-amorphous alloy formability, high toughness and high corrosion resistance.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular, the invention relates to a centimeter-level Zr-based bulk amorphous alloy and its preparation and application methods. Background technique [0002] Amorphous alloy, also known as metallic glass, is a general term for a class of metal alloys whose atoms are arranged in a long-range disordered and short-range ordered structure. Compared with traditional crystalline alloys, amorphous alloys lack the periodic symmetry and anisotropy of atomic arrangement, and do not have the same dislocations and grain boundaries as the crystal structure, which makes amorphous alloys have incomparable properties that traditional crystalline alloys have. physical and chemical properties. However, since the interatomic bonding force of the alloy exists in the form of non-directional metal bonds, the viscosity of the liquid is low, and the rearrangement of atoms is easy to diffuse, which is conduc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C45/10C22C1/02B22D11/06B22D25/02
Inventor 花能斌
Owner FUJIAN UNIV OF TECH
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