A control method for the density of amorphous alloy

An amorphous alloy and density technology, applied in the field of density control of amorphous alloys, to achieve the effects of simple implementation, high efficiency, controllability and repeatability

Active Publication Date: 2021-03-16
创明(韶关)绿色能源材料技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the density of amorphous solid alloys is closely related to their macroscopic properties, it is one of the effective ways to realize the regulation of macroscopic properties of amorphous solid alloys. However, due to the particularity of alloy melts, there is currently no experimental technique that can directly control alloy melts. The density of the amorphous solid alloy can be used to control the macroscopic properties

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  • A control method for the density of amorphous alloy
  • A control method for the density of amorphous alloy
  • A control method for the density of amorphous alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A regulating method of amorphous alloy density, the specific steps are as follows:

[0035] Step 1, calculate Fe 84 Si 10 B 6 (The subscript in the chemical form is AT%) Alloy melt average atomic coordination number with melt temperature: first use molecular dynamics simulation method to calculate Fe 84 Si 10 B 6 The bibquip distribution function of the alloy melt varies with the melt temperature and then determines from the atomic radius to determine the effective range of 0.2-0.3 nm, and respectively, the first neighborhood in each temperature of each temperature. Integral, the average atomic coordination is obtained. Get FE by establishing a correspondence between the melt temperature and the melt average atomic coordination 84 Si 10 B 6 Mever average atomic coordination calculation results with temperature change, with this as a choice of Fe 84 Si 10 B 6 The basis for the molten density of alloy;

[0036] Step 2, calculate the result according to the average atomic comp...

Embodiment 2

[0042] A regulating method of amorphous alloy density, the specific steps are as follows:

[0043] Step 1, calculate Fe 84 Si 10 B 6 (The subscript in the chemical form is AT%) Alloy melt average atomic coordination number with melt temperature: first use molecular dynamics simulation method to calculate Fe 84 Si 10 B 6 The bibquip distribution function of the alloy melt varies with the melt temperature and then determines from the atomic radius to determine the effective range of 0.2-0.3 nm, and respectively, the first neighborhood in each temperature of each temperature. Integral, the average atomic coordination is obtained. Get FE by establishing a correspondence between the melt temperature and the melt average atomic coordination 84 Si 10 B 6 Mever average atomic coordination calculation results with temperature change, with this as a choice of Fe 84 Si 10 B 6 The basis for the molten density of alloy;

[0044] Step 2, calculate the result according to the average atomic comp...

Embodiment 3

[0050] A regulating method of amorphous alloy density, the specific steps are as follows:

[0051] Step 1, calculate Fe 84 Si 10 B 6 (The subscript in the chemical form is AT%) Alloy melt average atomic coordination number with melt temperature: first use molecular dynamics simulation method to calculate Fe 84 Si 10 B 6 The bibquip distribution function of the alloy melt varies with the melt temperature and then determines from the atomic radius to determine the effective range of 0.2-0.3 nm, and respectively, the first neighborhood in each temperature of each temperature. Integral, the average atomic coordination is obtained. Get FE by establishing a correspondence between the melt temperature and the melt average atomic coordination 84 Si 10 B 6 Mever average atomic coordination calculation results with temperature change, with this as a choice of Fe 84 Si 10 B 6 The basis for the molten density of alloy;

[0052] Step 2, calculate the result according to the average atomic comp...

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Abstract

The invention discloses a method for regulating and controlling the density of an amorphous alloy. The method comprises the steps that average atomic coordination numbers of an amorphous alloy melt are calculated, specifically, the average atomic coordination numbers of the amorphous alloy melt at different temperatures are calculated, and a calculation result of the average atomic coordination numbers varying with the temperatures is obtained; heat treatment is performed on the alloy melt, specifically, the required average atomic coordination number is selected according to the calculation result, the temperature corresponding to the selected average atomic coordination number is determined as a superheat treatment temperature of the alloy melt, the alloy melt is insulated at the superheat treatment temperature to obtain an alloy melt after superheat treatment; and rapid solidification is performed, specifically, rapid solidification is performed the amorphous alloy melt after the superheat treatment to obtain an amorphous solid alloy. According to the method for regulating and controlling the density of the amorphous alloy, a new concept and method for designing and preparing the microstructure of the amorphous alloy are provided, and the characteristics such as simple and convenient implementation, high efficiency, low cost, high controllability and repeatability and high technical reliability are achieved.

Description

Technical field [0001] The present invention relates to a metal functional material preparation technique, and more particularly to a regulatory method of amorphous alloy density. Background technique [0002] The alloy melt contains a large number of atomic clusters, and the atomic cluster consists of a central atom and some neighbor atoms around the center atom. Therefore, the structural characteristics of the atomic cluster depends on the number of nearest nearest nearest nearestores around the center atom. The number of nearest nearest nearest nearest nearest nearest nearestores around the center atom is accustomed to the number of coordination, with the change in the number of coordination, the geometric size and geometry of the atomic cluster will change accordingly, the atomic cluster structure varies with the correlation number, The larger the coordination, the higher the geometric symmetry of the atomic cluster, and the geometry is also increased accordingly. As the atom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/06C22C1/00C22C45/02
Inventor 王岩国董帮少李宗臻张广强周少雄
Owner 创明(韶关)绿色能源材料技术研究院有限公司
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