Metal matrix based niobium carbide rare earth ceramic composite material and method

Abstract

The invention discloses a metal matrix based niobium carbide rare earth ceramic composite material and a method. The composite material is a multielement polyphase ceramic crystal with a NbC-V-RE-Fe-C structure, wherein NbC represents niobium carbide compound, and V represents metal vanadium element, and RE represents rare earth element, and Fe represents metal iron element, and C represents carbon element. A profile forming by combination of the ceramic crystal with a metal matrix is in a shape that non-regular sawteeth occlude mutually and completely covers over the metal matrix surface. A manufacture method comprises the steps of: first, preparing a carrier melt; second, preparing a composite material melt; third, preparing the niobium carbide rare earth ceramic composite material; fourth, carrying out subsequent processing.

Description

technical field [0001] The invention relates to the technical field of rare earth ceramic composite materials, in particular to the technical field of niobium carbide rare earth ceramic composite materials made on the surface of metal workpieces. Background technique [0002] Using surface engineering technology to modify the surface of metal workpieces to improve or change their application engineering performance is a commonly used technical method at present, and has achieved good technical and economic benefits in production practice, but in these In the metal surface modification technology, there are some technical defects, such as complex production process, long processing cycle, large energy consumption, narrow scope of application, high processing cost, etc. Therefore, on the basis of the currently used metal surface modification technology methods It is very urgent and necessary to use the designable properties of composite materials and their generation mechanism...

AI Technical Summary

Problems solved by technology

[0002] Using surface engineering technology to modify the surface of metal workpieces to improve or change their application engineering performance is a commonly used technical method at present, and has achieved good technical and economic benefits in production practice, but in these In the metal surface modification technology, there are some technical defects, such as complex production process, long processing cycle, large energy consumption, narrow scope of application, high processing cost, etc. Therefore, on the basis of the currently used metal surface modification technology methods It is very urgent and necessary to use the designable properties and generation mechanism of composite materials to manufacture composite materials on metal workpieces, and to explore and innovate metal surface modification technology, and it is also one of the development directions of surface engineering technology.

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