High-flux characterization method for wear resistance of composite material

Abstract

The invention relates to a high-flux characterization method for wear resistance of a composite material, and belongs to the field of powder metallurgy. The method comprises the following steps: firstly, uniformly dividing a cylindrical mold into a plurality of parts by adopting detachable separation sheets, respectively putting composite blanks with the same matrix and different contents or different types of strengthening phases into each equal part of the mold, compacting, and drawing out the separation sheets; then preparing the composite blank into a circular ring with a certain thicknessby adopting powder metallurgy methods such as isostatic pressing and hot pressing according to actual product requirements, and processing the circular ring into an involute standard straight ruler cylindrical gear shape; forming a plurality of friction pairs by adopting a gear which is made of a single opposite-grinding material and has the same shape and size with the to-be-tested circular ring, and rotating under the driving of a motor to perform a wear test; and finally, quantitatively analyzing the wear resistance of the composite material by using a high-precision three-dimensional surface profilometer. Compared with the traditional wear test, the method greatly improves the efficiency and accuracy of evaluating the wear resistance of the composite material prepared by powder metallurgy.

Description

technical field [0001] The invention belongs to the field of powder metallurgy, and in particular relates to a high-throughput characterization method for the wear resistance of composite materials. Background technique [0002] Due to the ability of powder metallurgy technology to produce special performance materials (refractory metals, hard alloys, porous materials, etc.) Superior (powder high-speed steel, powder superalloy) and other technical and economical advantages, widely used in the preparation of new materials such as mechanical parts and structural materials, porous materials, electrical materials, magnetic materials, tool materials, etc., especially for manufacturing Aluminum, copper, titanium, high-temperature alloy and other metals reinforced by various particles, lamellar crystals, whiskers and short fibers, and various intermetallic compound-based composite materials. [0003] In the process of characterization of the wear resistance of composite materials,...

AI Technical Summary

Problems solved by technology

[0003] In the process of characterization of the wear resistance of composite materials, the traditional pin-on-disk method, rod-tube type, linear reciprocating motion type and other wear tests are to add an intermediate substance between the sample and the counter-abrasive material to make it press a certain amount under a certain load. The speed of relative motion for a long time, the disadvantage is that only one material can be tested at a time, which seriously consumes equipment time

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