CN106086529A

CN106086529A - A kind of Co Ni Fe Cu nano coating and preparation method thereof

Info

Publication number: CN106086529A
Application number: CN201610662787.7A
Authority: CN
Inventors: 程敬卿; 周乾坤
Original assignee: Anhui Ding Heng Manufacturing Technology Research Institute Co Ltd
Current assignee: Anhui Ding Heng Manufacturing Technology Research Institute Co Ltd
Priority date: 2016-08-13
Filing date: 2016-08-13
Publication date: 2016-11-09

Abstract

The present invention relates to a kind of Co Ni Fe Cu nano coating and preparation method thereof, the mass fraction of its component and each component be Co account for 35 55 parts, Ni account for 24 39 parts, Fe account for 5 15 parts, Cu account for 39 parts, Al₂O₃Accounting for 13 parts, trace element accounts for 0.11 0.68 parts；Preparation method comprises the following steps: (1) uses dry type comminuting method to prepare the nanosphere of Co Ni Fe Cu；(2) nanosphere prepared in step (1) is used surfactant Protection Code mixing W, Mn, Al, Zn and Al₂O₃Prepare nanometer powder；(3) nano coating prepared in step (2) utilize plasma spray coating process prepare nano coating on iron-base workpiece.The high intensity of the existing alloy steel products of the present invention, has again the feature such as excellent corrosion resistance, high confficient of static friction, the hardness of prepared layer to can reach HRC37.

Description

A kind of Co-Ni-Fe-Cu nano coating and preparation method thereof

Technical field

The present invention relates to thermal spraying material technical field, a kind of Co-Ni-Fe-Cu nano coating and preparation thereof Method.

Background technology

Thermal spraying refers to a series of process, during these, and trickle and scattered metal or nonmetallic coating material, With one fusing or semi-molten state, deposit to a kind of matrix surface through preparation, form certain spray deposited layer.

The application of plasma spray technology is primarily limited to the development of thermal spraying material and process equipment, along with plasma spray technology Improving and development, the deficiency of thermal spraying material therefor performance increasingly becomes the bottleneck of restriction plasma spray technology development, traditional Spraying technology use material bond strength is poor, porosity height, wear no resistance.Novel hot sprayed on material needs to make up these and lacks Fall into, adopt new technology, new method, new formula prepare there is high rigidity, high-wearing feature, highly corrosion resistant, heterogeneous microstructure is equal Even, the excellent material of comprehensive mechanical property becomes the demand that people are urgent.

Summary of the invention

Poor in order to solve conventional coatings wearability, the problems such as hardness is relatively low, the present invention provides a kind of Co-Ni-Fe-Cu to receive Rice coating and preparation method thereof.

The technical problem to be solved realizes by the following technical solutions:

A kind of Co-Ni-Fe-Cu nano coating, the mass fraction of its component and each component is that Co accounts for 35-55 part, Ni accounts for 24- 39 parts, Fe accounts for 5-15 part, Cu accounts for 3-9 part, Al₂O₃Accounting for 1-3 part, trace element accounts for 0.11-0.68 part.

Described trace element is W, Mn, Al, Zn, and the quality proportioning of described trace element is 1:0.5:1:0.5.

The preparation method of a kind of Co-Ni-Fe-Cu nano coating, comprises the following steps:

(1) dry type comminuting method is used to prepare the nanosphere of Co-Ni-Fe-Cu；

(2) nanosphere prepared in step (1) is used surfactant Protection Code mixing W, Mn, Al, Zn and Al₂O₃System Obtain nanometer powder；

(3) nano coating prepared in step (2) utilizes plasma spraying spraying coating process prepare on iron-base workpiece to receive Rice coating.

The invention has the beneficial effects as follows: the high intensity of the existing alloy steel products of the present invention, have again excellent corrosion resistance, high static friction The features such as coefficient, the hardness of prepared layer can reach HRC37, has higher bond strength and the less porosity, in conjunction with Intensity, grasping force are higher, and layer thickness is up to 6 millimeters, and consistency is well 0.68.

Detailed description of the invention

In order to make technological means that the present invention realizes and creation characteristic be easy to understand, below the present invention is explained further State.

Embodiment one:

A kind of Co-Ni-Fe-Cu nano coating, the mass fraction of its component and each component be Co account for 35 parts, Ni account for 24 parts, Fe account for 5 parts, Cu account for 3 parts, Al₂O₃Accounting for 1 part, trace element accounts for 0.11 part.

Embodiment two:

A kind of Co-Ni-Fe-Cu nano coating, the mass fraction of its component and each component be Co account for 55 parts, Ni account for 39 parts, Fe account for 15 parts, Cu account for 9 parts, Al₂O₃Accounting for 3 parts, trace element accounts for 0.68 part.

The preparation method of a kind of Co-Ni-Fe-Cu nano coating is identical with embodiment one.

Embodiment three:

A kind of Co-Ni-Fe-Cu nano coating, the mass fraction of its component and each component be Co account for 38 parts, Ni account for 30 parts, Fe account for 10 parts, Cu account for 5 parts, Al₂O₃Accounting for 2 parts, trace element accounts for 0.5 part.

Plasma spraying technology is used to prepare Co-Ni-Fe-Cu nanometer layer on iron-base workpiece, with described layer Matrix and the bond strength of matrix, microhardness, the porosity and the abrasive wear resistance contrast experiment knot without described layer Fruit is shown in Table 1:

Table 1Co-Ni-Fe-Cu nanometer layer with without layer iron-base workpiece performance comparison experimental result:

Experimental group is numbered	Porosity (AREA%)	Bond strength (MPa)	Microhardness (HV)
				1	0.485	78.3	1135
2	0.457	81.6	1156
				3	0.437	83.2	1127
Meansigma methods	0.460	81.0	1139
				Contrast groups	0.578	62.6	850

Plasma spraying technology is used to prepare Co-Ni-Fe-Cu layer on iron-base workpiece, with the matrix of described layer It is shown in Table 2 with the wear extent contrast and experiment of the matrix without described layer:

Table 2Co-Ni-Fe-Cu nanometer layer and the wear extent contrast and experiment of iron-base workpiece:

Experimental group is numbered	Before abrasion (g)	After abrasion (g)	Wear extent (g)
				1	58.5724	58.5670	0.0054
2	58.1879	58.1815	0.0064
				3	58.3587	58.3549	0.0038
Contrast groups	58.6417	58.6293	0.0124

From Tables 1 and 2, the excellent combination property of Co-Ni-Fe-Cu nanometer layer, wearability is good.

The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The technology of the industry The personnel simply present invention it should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and description Principle, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these change and Improvement both falls within scope of the claimed invention.Claimed scope is by appending claims and equivalence thereof Thing defines.

Claims

1. a Co-Ni-Fe-Cu nano coating, it is characterised in that: the mass fraction of its component and each component is that Co accounts for 35-55 Part, Ni accounts for 24-39 part, Fe accounts for 5-15 part, Cu accounts for 3-9 part, Al₂O₃Accounting for 1-3 part, trace element accounts for 0.11-0.68 part；

2. the preparation method of a Co-Ni-Fe-Cu nano coating, it is characterised in that: comprise the following steps:

(2) nanosphere prepared in step (1) is used surfactant Protection Code mixing W, Mn, Al, Cu, Zn and Al₂O₃Prepare Nanometer powder；

(3) nano coating prepared in step (2) utilize plasma spray coating process prepare nano coating on iron-base workpiece.