High-hardness Ti(C, N)-based metal-ceramic cutter composite

Abstract

A high-hardness Ti(C, N)-based metal-ceramic cutter composite is characterized by comprising Ti, TiB2, WC, C, Ni and Mo, wherein the composite is a Ti(C, N)-TiB2-WC metal-ceramic cutter material or a Ti(C, N)-TiB2-(W, Ti)C metal-ceramic cutter material; Ti is Ti (C5, N5), the atomic ratio of C to N is 5:5, the average particle size of Ti is 1.5 microns, and the purity is 99.9%; powder TiB2 is a reinforcement phase, the average particle size is 2 microns, and the purity is 99%; the average particle size of WC is 2 microns, the purity of WC is 99.6%, C is (W0.7, Ti0.3)C, the average particle size of C is 1.5 microns, the purity of C is 99%, and the mass fraction of WC and C is 15%; Ni is nanometer Ni, the average particle size of Ni is 0.05 micron, and the purity of the Ni is 99.9%; Mo is nanometer Mo, the average purity is 0.06 micron, and the purity is 99%. The high-hardness Ti(C, N)-based metal-ceramic cutter composite improves the hardness and the bending strength, at the high temperature, of the Ti(C, N)-based metal-ceramic cutter, improves the mechanical properties of the cutter, saves noble rare metals such as Co, Ta and W, facilitates to improve national resource guarantee and pushes upgrading and updating of hard alloy materials in China.

Description

technical field [0001] The present invention relates to a novel composite material, in particular the composition of the composite material includes a reinforcing phase TiB 2 As well as nanometer Ni and Mo, it can be widely used in the field of cutting tools. Background technique [0002] With the development of the economy, various resources are scarce. my country's metal Co resources are relatively poor. As a strategic precious metal, the price of Co has continued to rise in recent years. In order to save resources, it is especially important to invent materials that can replace scarce resources. important; therefore, the development and wide application of Ti(C,N)-based cermet tools with good comprehensive properties can not only promote the upgrading of cemented carbide materials in my country, but also save the Co, Precious and rare metals such as Ta and W are of great significance in improving the level of national resource protection, and their development space is rel...

AI Technical Summary

Problems solved by technology

However, the problems still exist in Ti(C,N)-based cermet tools are insufficient strength and toughness, insufficient high-temperature hardness, and poor wear resistance. These problems need to be further improved.