Method for high throughput preparation of magnesium alloy block samples

A high-throughput technology for magnesium alloys, applied in the field of high-throughput experiments of materials, can solve the problems of long magnesium alloy cycle, unsuitable for rapid preparation of magnesium alloy materials, inaccurate control of magnesium alloy components, etc., and achieve a fast configuration process Effect

Active Publication Date: 2017-03-22
NANCHANG UNIV
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  • Abstract
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Problems solved by technology

However, magnesium and magnesium alloys also have disadvantages such as poor heat resistance, poor corrosion resistance, poor wear resistance and poor decoration, which limit their application fields.
Commonly used metallurgical methods to improve magnesium alloys have a long period and high cost
However, the existing high-throughput experimental technology is basically not suitable for the rapid preparation of magnesium alloy materials, such as: composite material chip technology, "jet printing" synthesis method, micro-electromechanical structure method, and microfluidic structure method. The material form obtained by the microfluidic structure method is not a bulk material ; Although the multi-component material diffusion method can obtain bulk materials, the in-situ diffusion makes the composition control of magnesium alloys imprecise and the types of components are limited; high-energy energy beams in additive manufacturing are likely to cause explosions of magnesium alloys and the oxidation and burning of magnesium. Seriously damaged

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  • Method for high throughput preparation of magnesium alloy block samples
  • Method for high throughput preparation of magnesium alloy block samples
  • Method for high throughput preparation of magnesium alloy block samples

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] It is necessary to prepare 16 magnesium alloy samples of Mg-(0.25~4)Zn(at.%), and the concentration changes quasi-continuously. Complete the quasi-negative electrode preparation as described in the manual, insert the quasi-negative electrode into the gradient composite ceramic sleeve to complete the negative electrode assembly. Configure galvanizing solution, the formula is: zinc oxide 45~58g / L, potassium chloride 125~158g / L, boric acid 35~50g / L, ethanolamine 0.45~0.58g / L, linalin 0.5~0.8g / L, Triethanolamine 0.9~1.0g / L, control temperature during electroplating process is 20~48℃, cathode current density 0.5~6A / dm 2 . Installing the zinc positive electrode, it is measured that it takes 30 seconds to complete Mg-0.25Zn (at.%). Fully immerse the negative electrode in the galvanizing electrolyte, and move it up 3cm every 30 seconds, which is the position of 2 sample windows. The electroplating of zinc is completed after 8 minutes. Plating took a total of 8 minutes. Dis...

Embodiment 2

[0036] It is necessary to prepare 128 magnesium alloy samples of Mg-(0.4~3.5)Zn-(0.3~0.6)Gd (at.%), and the concentration changes quasi-continuously. Complete the quasi-negative electrode preparation according to the process described in the manual, and insert the 4 quasi-negative electrodes into the gradient composite ceramic sleeve to complete the assembly of the 4 negative electrodes. Configure galvanizing solution, the formula is: zinc oxide 45~58g / L, potassium chloride 125~158g / L, boric acid 35~50g / L, ethanolamine 0.45~0.58g / L, linalin 0.5~0.8g / L, Triethanolamine 0.9~1.0g / L, control temperature during electroplating process is 20~48℃, cathode current density 0.5~6A / dm 2 . Install the zinc positive electrode, and it takes 12 seconds to complete Mg-0.1Zn (at.%). The 4 negative electrodes were completely immersed in the galvanizing electrolyte, and the electroplating was completed for 48 seconds to complete Mg-0.4Zn (at.%) electroplating. Then move up 1.5cm every 12 secon...

Embodiment 3

[0038] It is necessary to prepare 16 magnesium alloy samples of Mg-(3.3~3.6)Zn-(0.325~0.4)Cu(at.%), and the composition changes separately. Complete the quasi-negative electrode preparation according to the process described in the manual, insert 4 quasi-negative electrodes into holes 1, 9, 17, and 25 in the quaternary discrete composite ceramic jacket A1, and complete the negative electrode assembly A1. Configure galvanizing solution, the formula is: zinc oxide 45~58g / L, potassium chloride 125~158g / L, boric acid 35~50g / L, ethanolamine 0.45~0.58g / L, linalin 0.5~0.8g / L, Triethanolamine 0.9~1.0g / L, control temperature during electroplating process is 20~48℃, cathode current density 0.5~6A / dm 2 . Install the zinc positive electrode, and it takes 12 seconds to complete Mg-0.1Zn (at.%). The negative electrode is completely immersed in the galvanizing electrolyte, and the 3.3Zn (at.%) electroplating is completed in 6 minutes and 36 seconds. Then insert 4 quasi-negative electrodes...

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Abstract

The invention relates to a method for high throughput preparation of magnesium alloy block samples. The method includes the following steps of magnesium hollow rod treatment, quasi negative electrode preparation, negative electrode assembling, doping metal layer electroplating and aftertreatment working procedure executing. By means of the method, according to the sample component control requirement, a gradient composite ceramic jacket layer and a quaternary discrete composite ceramic jacket layer are designed according to combinatorial chemistry to be used for negative electrode assembling. A metal positive electrode is replaced for controlling the element types of doped metal; and the metallic element doping density is controlled by controlling the electroplating time. By means of the method, multi-component multi-density matching magnesium alloy design can be rapidly achieved; compared with a traditional dosing manner, the preparing process is rapid and accurate; and in addition, under negative electrode current protection in the overall process, a magnesium alloy is safe, and oxidation and burning losses are avoided. Besides the magnesium alloy, the method is suitable for high throughput preparation of other active metal and low-melting-point metal blocks.

Description

technical field [0001] The invention belongs to the technical field of high-throughput experiments of materials, and in particular relates to the high-throughput preparation of metal structure materials. Background technique [0002] "Materials high-throughput experiment" is to complete the preparation and characterization of a large number of samples in a short time. Its core idea is to change the sequential iterative method used in traditional materials research to parallel processing, and to cause qualitative changes in the efficiency of materials research with quantitative changes. As one of the three major elements of "Materials Genome Technology", it is organically integrated and developed with "Materials Computational Simulation" and "Materials Informatics / Database" to accelerate the efficiency of materials research and development and application, and to make materials science move towards "design on demand". final goal. In the transition from traditional empirical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D5/42C25D5/10C25D3/54C25D3/38C25D3/22C23G1/24C23F3/03
CPCC23F3/03C23G1/24C25D3/22C25D3/38C25D3/54C25D5/10C25D5/42
Inventor 罗岚刘勇王雨郭锐丁岩
Owner NANCHANG UNIV
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