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A series of zr‑al‑ni‑cu bulk amorphous alloys with cellular microstructure

A microstructure, amorphous alloy technology, applied in the field of Zr-Al-Ni-Cu bulk amorphous alloy, can solve the problem of not preparing amorphous alloy

Inactive Publication Date: 2017-12-15
HUNAN INSTITUTE OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the presence of atomic or nanoscale cluster structures in amorphous alloys can be observed by high-power transmission electron microscopy, but no amorphous alloys with micron-scale microstructures have been prepared.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] According to Zr 65 al 8.7 Cu 14.4 Ni 11.9 (at%) alloy composition, weigh zirconium 15.2474±0.0001g, aluminum 0.6036±0.0001g, copper 2.3530±0.0001g and nickel 1.7959±0.0001g with an analytical balance, put them into a copper crucible in a vacuum electric arc furnace, and evacuate to 1 ×10 -3 Pa, fill the argon gas to make the pressure of the vacuum chamber reach 0.45 atmospheres, smelt the Ti and inhale, then melt the alloy 5 times, take out the master alloy after the vacuum chamber is cooled, clean the crucible and break the master alloy, and put Part of the broken master alloy is put into the crucible of the electric arc furnace, and a water-cooled copper mold with a cavity diameter of 3mm is installed, and the vacuum is evacuated to 1×10 -3 Pa and then filled with argon with a purity >99.99wt% to make the pressure of the vacuum chamber reach 0.2 atmospheres, then smelt Ti for suction, and melt the master alloy for suction casting to obtain a sample with a diameter...

Embodiment 2

[0011] According to Zr 61.5 al 10.7 Cu 13.65 Ni 14.15 (at%) alloy composition, weigh zirconium 14.7700±0.0001g, aluminum 0.7601±0.0001g, copper 2.2836±0.0001g and nickel 2.1863±0.0001g with an analytical balance, put them into a copper crucible in a vacuum electric arc furnace, and evacuate to 1 ×10 -3 Pa, fill the argon gas to make the pressure of the vacuum chamber reach 0.45 atmospheres, smelt the Ti and inhale, then melt the alloy 5 times, take out the master alloy after the vacuum chamber is cooled, clean the crucible and break the master alloy, and put Part of the broken master alloy is put into the crucible of the electric arc furnace, and a water-cooled copper mold with a cavity diameter of 3mm is installed, and the vacuum is evacuated to 1×10 -3 Pa and then filled with argon with a purity >99.99wt% to make the pressure of the vacuum chamber reach 0.2 atmospheres, then smelt Ti for suction, and melt the master alloy for suction casting to obtain a sample with a dia...

Embodiment 3

[0013] According to Zr 60.5 al 12.1 Cu 10.95 Ni 16.45 (at%) alloy composition, weigh zirconium 14.7041±0.0001g, aluminum 0.8698±0.0001g, copper 1.8539±0.0001g and nickel 2.5722±0.0001g with an analytical balance, put them into a copper crucible in a vacuum electric arc furnace, and evacuate to 1 ×10 -3 Pa, fill the argon gas to make the pressure of the vacuum chamber reach 0.45 atmospheres, smelt the Ti and inhale, then melt the alloy 5 times, take out the master alloy after the vacuum chamber is cooled, clean the crucible and break the master alloy, and put Part of the broken master alloy is put into the crucible of the electric arc furnace, and a water-cooled copper mold with a cavity diameter of 3mm is installed, and the vacuum is evacuated to 1×10 -3 Pa and then filled with argon with a purity >99.99wt% to make the pressure of the vacuum chamber reach 0.2 atmospheres, then smelt Ti for suction, and melt the master alloy for suction casting to obtain a sample with a dia...

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Abstract

The invention belongs to the field of novel materials, and discloses a series of Zr-Al-Ni-Cu block amorphous alloys having cellular microstructures. According to the Zr-Al-Ni-Cu block amorphous alloys, Zr (99.99 wt%), Al (99.99 wt%), Ni (99.99 wt%) and Cu (99.99 wt%) are smelted through a vacuum smelting method, and are prepared into amorphous alloy samples having a diameter of 3 mm through a suction casting method. The Zr-Al-Ni-Cu block amorphous alloys have the cellular microstructures and are ideal precursors used for preparing Zr-Al-Ni-Cu block amorphous foam materials.

Description

technical field [0001] The invention relates to a series of Zr-Al-Ni-Cu bulk amorphous alloys with cellular microstructure. Background technique [0002] Zirconium-based bulk amorphous alloys have good amorphous formation ability, large elastic strain, high corrosion resistance, and high compressive strength. In particular, some zirconium-based amorphous alloys exhibit good room temperature plasticity and biocompatibility. The characteristics make it have great application prospects in the field of structure and biomaterials. At present, the presence of atomic or nanoscale cluster structures in amorphous alloys can be observed by high-power transmission electron microscopy, but no amorphous alloys with micron-scale microstructures have been prepared. The room temperature plasticity of amorphous alloys is closely related to its internal microstructure, so it is of great significance to prepare zirconium-based bulk amorphous alloys with special micron-scale microstructures. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C45/10C22C1/03
Inventor 蔡安辉熊翔刘咏安伟科周果君罗云李铁林李小松
Owner HUNAN INSTITUTE OF SCIENCE AND TECHNOLOGY