Method for producing Ni-Mo/ZrO2 three-element functionally gradient material through dual-pulse electrodeposition

A gradient functional material, electrodeposition technology, applied in the direction of electrolytic coating, electrolytic process, electrolytic components, etc., can solve harsh problems and achieve the effect of excellent performance, good corrosion resistance and compact structure

Inactive Publication Date: 2018-08-28
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the development of science and technology and the machinery industry, more metal materials have to face harsher environments, which limits the use of a large number of materials, which requires the advancement of material surface modification technology

Method used

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  • Method for producing Ni-Mo/ZrO2 three-element functionally gradient material through dual-pulse electrodeposition
  • Method for producing Ni-Mo/ZrO2 three-element functionally gradient material through dual-pulse electrodeposition
  • Method for producing Ni-Mo/ZrO2 three-element functionally gradient material through dual-pulse electrodeposition

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Embodiment 1

[0039] Embodiments of the present invention provide a double-pulse electrodeposited Ni-Mo / ZrO 2 A method for ternary graded functional materials.

[0040] Double-pulse electrodeposition apparatus, such as figure 1 As shown, the plating tank 1 is included, the plating tank 1 is in the constant temperature water tank 2, there is a plating solution in the plating tank 1, and the cathode electrode 3, the anode electrode 4 and the electric stirrer 6 are placed in the plating solution, and the cathode electrode 3 and the anode electrode 4 are connected The double pulse power supply 5 and the electric stirrer 6 are located in the middle of the plating tank 1 . The plating tank 1 is a cuboid glass product whose specification is 100mm (length)×100mm (width)×80mm (height). The double pulse power supply 5 is responsible for providing rectangular wave current, the electric stirrer 6 controls the stirring speed during the reaction process, and the constant temperature water tank 2 contro...

Embodiment 2

[0083] The difference between this embodiment and Embodiment 1 is that the parameters of the double pulse power supply are: the forward duty cycle is 40%, the forward period is 9ms, and the forward current density is 1.75A / dm 2 , the reverse duty cycle is 20%, and the reverse current density is 0.15A / dm 2 , the prepared Ni-Mo / ZrO 2 Ni-Mo / ZrO in Ternary Gradient Functional Materials 2 The coating thickness is the largest.

Embodiment 3

[0085] The difference between this embodiment and Embodiment 1 is that the parameters of the double pulse power supply are: the forward duty cycle is between 40% and 80%, the forward period is 3ms, and the forward current density is 1.75A / dm 2 , the reverse duty cycle is 60%, and the reverse current density is 0.175A / dm 2 , the prepared Ni-Mo / ZrO 2 A coating with a ternary graded functional material grain size of about 17nm.

[0086] ZrO 2 The addition of the addition refines the crystal size of the coating, and the crystal size of the coating is the smallest (17.54nm) when the addition amount is 30g / L, making Ni-Mo / ZrO 2 The structure of the ternary graded functional material is more uniform and dense, and its corrosion resistance is obviously improved.

[0087] Ni-Mo / ZrO prepared by the present invention 2The ternary gradient functional material coating has smooth surface, compact structure, excellent performance, small average crystal size (about 17nm), good corrosion r...

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Abstract

The invention discloses a method for producing a Ni-Mo/ZrO2 three-element functionally gradient material through dual-pulse electrodeposition. The method comprises the following steps: preprocessing copper base materials, so as to obtain sheet copper to be plated; closing one surface of the sheet copper; using the closed sheet copper as a cathode, using a soluble Ni plate as an anode, enabling thecathode and the anode to be connected with a dual-pulse power source, and putting the cathode, the anode and the dual-pulse power source in a plating tank, wherein the surface, which is not closed, of the sheet copper is arranged opposite to the anode; adding a plating solution to the plating tank; starting the dual-pulse power source, setting parameters of the dual-pulse power source, performingelectrodeposition, stirring the plating solution in the electrodeposition process, and gradually adding ZrO2 to the plating solution, wherein the adding capacity of the ZrO2 is increased in gradient;performing after-treatment, so as to obtain the Ni-Mo/ZrO2 three-element functionally gradient material. Through adoption of the method disclosed by the invention, the obtained Ni-Mo/ZrO2 three-element functionally gradient material is flat in plating surface, compact in structure, good in performance, relatively small in average crystal size (about 17 nm), relatively good in corrosion resistanceand relatively high in thickness value.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to a double-pulse electrodeposited Ni-Mo / ZrO 2 A method for ternary graded functional materials. Background technique [0002] Materials exist in all aspects of our lives. Metal materials are an important branch of the material field. Metal materials are widely used in parts processing, heavy machinery, and shipping due to their excellent strength and high plasticity. However, in the process of using metal materials, there are often problems of non-corrosion resistance and poor high temperature resistance. Especially in recent years, traditional simple metal materials can no longer meet the needs of technological development. When working in extreme environments, these materials The corrosion resistance and wear resistance performance of the deep well oil drilling rig can not meet the specified requirements. For example, the working conditions of the brake disc of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/56C25D5/18C25D5/34C25D5/48C25D21/14C25D15/00
CPCC25D3/562C25D5/18C25D5/34C25D5/48C25D15/00C25D21/14
Inventor 葛文何丹丹王迦卉曾子明何泰松
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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