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Electro-deposition method for preparing bulk nano ferro-nickel alloy crystalline

A ferroalloy and electrodeposition technology, which is applied in the field of preparing bulk nano-metal crystals, can solve the problems of small size of nano-crystalline alloy materials, inability to perform mechanical properties, containing pores, etc., and achieves the effects of low price, fine crystallization and easy operation.

Inactive Publication Date: 2011-07-06
CHANGCHUN UNIV OF TECH
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AI Technical Summary

Problems solved by technology

Due to the small size of nanocrystalline alloy materials prepared by most methods, and defects such as pores and microcracks, mechanical and other performance tests cannot be performed.
Moreover, there are still great difficulties in preparing large-volume nanocrystalline alloys by electrodeposition methods.

Method used

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  • Electro-deposition method for preparing bulk nano ferro-nickel alloy crystalline
  • Electro-deposition method for preparing bulk nano ferro-nickel alloy crystalline
  • Electro-deposition method for preparing bulk nano ferro-nickel alloy crystalline

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Experimental program
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Embodiment Construction

[0021] 1. Embodiment 1

[0022] The low-carbon steel sample was used as the cathode material in the test, and the electrolytic nickel plate and the pure iron plate were used as the anode materials. The area of ​​the electrolytic nickel plate was 100mm×100mm; the area of ​​the pure iron plate was 100mm×20mm. Electroplating power supply adopts silicon controlled rectifier power supply. The cathode moving device and circulation filter device are used in the electroplating process. The low-carbon steel samples were electroplated with nickel-iron alloy under the conditions of circulating stirring and cathode movement after derusting, degreasing and surface activation treatment. The composition of the plating solution and the plating conditions are shown in Table 1. The microstructure and phase structure of the obtained nanocrystalline nickel-iron alloy materials are as follows: figure 1 , figure 2 shown.

[0023] 2. Embodiment 2

[0024] After the above-mentioned low carbon s...

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Abstract

The invention provides an electro-deposition method for preparing bulk nano-crystalline ferro-nickel alloy. Electro-deposition equipment capable of circularly filtering, stirring, temperature control and cathode movement is adopted; 1g / l to 3g / l of additive A and 0.25g / l to 0.75g / l of additive B are adopted; and the bulk nano ferro nickel alloy is acquired under the technological parameters that the electroplating solution temperature is 55 DEG C to 65 DEG C, the pH (hydrogen ion concentration) value is 3.2 to 3.8, and the cathode current density is 2A / dm2 to 8A / dm2. The invention has the characteristics of simple and easy-to-control technological process, steady product quality, small crystallite dimension, even structure, high purity, little environmental pollution, low production cost, and the like.

Description

technical field [0001] The invention relates to a method for preparing bulk nanometer metal crystals, in particular to a method for preparing large volume bulk nanometer metal alloy crystals. Background technique [0002] Nanocrystals have high strength, high plasticity, wear resistance, ductility, hardness, electrical resistance, electrochemical properties, and special physical properties such as sound, electricity, magnetism, heat, and light that other ordinary crystals do not have. more expansive. Due to the small size of nanocrystalline alloy materials prepared by most methods, and defects such as pores and microcracks, mechanical and other performance tests cannot be performed. Moreover, there are still great difficulties in preparing large-volume nanocrystalline alloys by electrodeposition methods. Therefore, the preparation of large-volume, high-quality alloys with real nanocrystalline structures is an urgent problem to be solved. [0003] The technical difficultie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/56C25D5/22
Inventor 李雪松杨悦吴化王淮杨友
Owner CHANGCHUN UNIV OF TECH
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