A wear-resistant multi-principal alloy-diamond composite material and its preparation method and application

A multi-principal element alloy and composite material technology is applied in the field of multi-principal alloy-diamond composite materials and their preparation, which can solve the problems of affecting the structure and performance of the bonding phase, easy introduction of impurities, safety hazards, etc., and improve poor stability. , the effect of excellent wear and corrosion resistance, low friction coefficient and wear rate
CN114134381BActive Publication Date: 2022-06-21CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CENT SOUTH UNIV
Publication Date
2022-06-21

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Abstract

The invention belongs to the field of preparation of composite materials, and in particular relates to a multi-principal alloy-diamond composite material and its preparation method and application. The raw materials of the composite material include 80-95vol.% binder phase powder and 5-20vol% diamond. The binder phase powder used is composed of Cu, Ni, Co, Cr in atomic ratio (20-40):(20-30):(20-30):(10-20). The preparation method is as follows: after fully mixing the bonding phase powder and the diamond powder, the spark plasma sintering process is used to sinter at 800-1000°C to obtain the product. The material has good interfacial bonding, diamond stability, and friction and wear properties. The multi-principal element alloy-diamond composite material designed and prepared by the present invention can be used to prepare grinding diamond-like tools such as diamond grinding discs and diamond grinding wheels.
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Description

technical field

[0001] The invention belongs to the field of preparation of composite materials, in particular to a multi-principal alloy-diamond composite material and a preparation method and application thereof. Background technique

[0002] At present, the metal bonding phases of diamond abrasive tools (grinding discs, grinding wheels, etc.) are mainly copper-based and cobalt-based bonding phases, or some low-temperature metals or alloys, trace non-metallic elements, etc. are added to them to improve the bonding phase matrix. strength and enhance the holding power of the matrix to the diamond particles. However, the traditional metal-based bonding phase is easy to form harmful products such as metal compounds and gaps, and it is difficult to ensure the stability of the microstructure and properties of the bonding phase, and cannot fully meet the requirements of actual grinding processing. More and more researchers have begun to design and prepare multi-principal alloys ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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