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A zirconium-based bulk amorphous alloy containing carbon and iron and its preparation process

An amorphous alloy and bulk technology, applied in the field of zirconium-based bulk amorphous alloy and its preparation, can solve problems such as limiting the scope of industrial application and the like

Active Publication Date: 2020-06-19
HUNAN INSTITUTE OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The Zr-Al-Ni-Cu quaternary alloy system is one of the alloy systems with strong amorphous formation ability among zirconium-based amorphous alloys. However, its room temperature brittleness limits its industrial application range.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Use a balance to weigh 6.5824g of pure zirconium, 0.4261g of pure aluminum, 0.9349g of pure nickel, 2.0504g of pure copper and 0.0063g of iron-carbon alloy, and put the weighed copper, aluminum, zirconium, nickel and iron-carbon alloy into non-consumable In the copper crucible in the vacuum electric arc furnace, the furnace cavity is vacuumed to make the vacuum degree reach 1×10-4Pa, and 99.999wt% high-purity argon gas is filled to make the internal pressure of the furnace cavity reach -40Pa, and then the melting current In the case of 4A, the alloy elements were smelted repeatedly for 5 times, and the smelting time was 2 minutes each time. Then, under the condition that the internal pressure of the furnace cavity was -60Pa, the alloy liquid was sucked and casted into the water-cooled copper mold by vacuum suction casting method to prepare the Alloy rods with a diameter of 2 mm. The glass transition temperature of the alloy is 745.1K, the initial crystallization tempera...

Embodiment 2

[0011] Weigh 6.5783g of pure zirconium, 0.4258g of pure aluminum, 0.9343g of pure nickel, 2.0491g of pure copper and 0.0125g of iron-carbon alloy with a balance, and put the weighed copper, aluminum, zirconium, nickel and iron-carbon alloy into non-consumable In the copper crucible in the vacuum electric arc furnace, the furnace cavity is vacuumed to make the vacuum degree reach 1×10-4Pa, and 99.999wt% high-purity argon gas is filled to make the internal pressure of the furnace cavity reach -40Pa, and then the melting current In the case of 4A, the alloy elements were smelted repeatedly for 5 times, and the smelting time was 2 minutes each time. Then, under the condition that the internal pressure of the furnace cavity was -60Pa, the alloy liquid was sucked and casted into the water-cooled copper mold by vacuum suction casting method to prepare the Alloy rods with a diameter of 2 mm. The glass transition temperature of the alloy is 743.7K, the initial crystallization temperatu...

Embodiment 3

[0013] Weigh 6.5742g of pure zirconium, 0.4256g of pure aluminum, 0.9337g of pure nickel, 2.0478g of pure copper and 0.0187g of iron-carbon alloy with a balance, and put the weighed copper, aluminum, zirconium, nickel and iron-carbon alloy into non-consumable In the copper crucible in the vacuum electric arc furnace, the furnace cavity is vacuumed to make the vacuum degree reach 1×10-4Pa, and 99.999wt% high-purity argon gas is filled to make the internal pressure of the furnace cavity reach -40Pa, and then the melting current In the case of 4A, the alloy elements were smelted repeatedly for 5 times, and the smelting time was 2 minutes each time. Then, under the condition that the internal pressure of the furnace cavity was -60Pa, the alloy liquid was sucked and casted into the water-cooled copper mold by vacuum suction casting method to prepare the Alloy rods with a diameter of 2 mm. The glass transition temperature of the alloy is 743.0K, the initial crystallization temperatu...

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Abstract

The invention belongs to the field of new materials, and discloses a zirconium-based bulk amorphous alloy containing carbon and iron and a preparation process thereof. The bulk amorphous alloy is made of copper, nickel, zirconium, aluminum with a purity of 99.99wt%, and an iron-carbon alloy with a carbon content of 6wt%, which is melted in a vacuum melting furnace, and then the alloy liquid is sucked into the Alloy rods with a diameter of 2 mm were prepared in a water-cooled copper mold. The chemical composition of the bulk amorphous alloy is Zr52.947Al11.5884Ni11.6883Cu23.6763Fe0.077C0.023, Zr52.894Al11.5768Ni11.6766 Cu23.6526Fe0.154C0.046, Zr52.841Al11.5652 Ni11. 6649Cu23.6289Fe0.231C0.069, Zr52.788 Al11.5536Ni11.6532Cu23.6052Fe0.308C0.092, Zr52.735Al11.542Ni11.6415Cu23.5815Fe0.385C0.105, the glass transition temperature is 494.0K, 7 The temperature is 788.1~802.3K, the compressive strength is 1783.8~2100.2MPa, the yield strength is 1633.4~1762.9MPa, the plastic strain is 0.39~1.68%, the hardness is 48.6~50.1HRC, and the corrosion potential is ‑0.24~‑0.26V.

Description

technical field [0001] The invention relates to a zirconium-based bulk amorphous alloy containing carbon and iron and a preparation process thereof. Background technique [0002] The Zr-Al-Ni-Cu quaternary alloy system is one of the alloy systems with strong amorphous formation ability among zirconium-based amorphous alloys. However, its room temperature brittleness limits its industrial application. Microalloying is one of the important ways to further improve the properties of amorphous alloys. Therefore, it is of great significance to improve the properties of zirconium-based bulk amorphous alloys by adding iron and carbon in the present invention. Contents of the invention [0003] The object of the present invention is to provide a zirconium-based bulk amorphous alloy containing carbon and iron and a preparation process thereof. [0004] The object of the present invention is achieved through the following technical scheme: the preparation process of the zirconium-b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C45/10C22C1/02
CPCC22C1/02C22C45/10C22C1/11
Inventor 蔡安辉安琪丁超义周果君罗云
Owner HUNAN INSTITUTE OF SCIENCE AND TECHNOLOGY