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High alloy matrix metal-ceramic composite and preparation method thereof

A cermet and alloy matrix technology, which is applied in the field of wear-resistant materials, can solve the problems of inability to prepare high-alloy matrix cermet composite materials, etc., and achieve the effect of facilitating large-scale industrial production, high service life, and excellent mechanical properties

Inactive Publication Date: 2018-12-18
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This kind of composite material will have a wide range of application prospects in industrial production, but the above methods cannot be used to prepare high-alloy matrix metal-ceramic composite materials

Method used

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  • High alloy matrix metal-ceramic composite and preparation method thereof
  • High alloy matrix metal-ceramic composite and preparation method thereof
  • High alloy matrix metal-ceramic composite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] A high-alloy matrix metal-ceramic composite material can be used to prepare specific wear-resistant parts. The thickness of the working area of ​​the wear-resistant part, that is, the thickness of the high-alloy matrix metal-ceramic composite material, is 3 / 4 of the thickness of the overall part.

[0071] The high-alloy matrix metal-ceramic composite material is based on a cylindrical high-toughness metal substrate 5 as a toughening area, and the working area is a cylindrical high-alloy matrix metal-ceramic composite material 4; its structural diagram is shown in figure 2 .

[0072] Among them, the cylindrical high-alloy matrix cermet composite material 4 includes cermet-reinforced particles and high-alloy matrix materials, wherein the cermet-reinforced particles are white corundum particles + SiC particles, as the reinforcing phase, according to the volume ratio, the cermet-reinforced particles: High alloy matrix material = 1:1.

[0073] In the high-alloy matrix cerm...

Embodiment 2

[0093] A high-alloy matrix metal-ceramic composite material, which is used to prepare high wear-resistant mosaic roller sleeves, its structure schematic diagram is shown in image 3 (a), the working area of ​​the high wear-resistant mosaic roller sleeve, that is, the thickness of the mosaic block on the outer surface of the high wear-resistant roller sleeve is 1 / 2 of the thickness of the overall high wear-resistant mosaic roller sleeve.

[0094] The working area of ​​the high wear-resistant inlaid roller sleeve 6 is the inlaid block 7 on the outer surface of the high wear-resistant roller sleeve;

[0095] The inlaid block 7 on the outer surface of the high-wear-resistant roller sleeve includes a high-alloy matrix cermet composite material 8, a high-alloy metal material 9, and a high-toughness metal substrate 10; the structure diagram of the inlaid block 7 on the outer surface of the high-wear-resistant roller sleeve is shown in image 3 (b);

[0096] Among them, the high-allo...

Embodiment 3

[0119] A high-alloy matrix metal-ceramic composite material is used to prepare wear-resistant parts. The thickness of the working area of ​​the wear-resistant part, that is, the thickness of the high-alloy matrix metal-ceramic composite material is 1 / 3 of the thickness of the entire part.

[0120] The high-alloy matrix metal-ceramic composite material is a quadrilateral high-toughness metal substrate 12 as a toughening part, and the working area is set as a quadrilateral high-alloy matrix high-alloy matrix metal-ceramic composite material 11;

[0121] Among them, the quadrilateral high-alloy matrix metal-ceramic composite material 11 includes metal-ceramic reinforcing particles and high-alloy matrix materials, wherein the metal-ceramic reinforcing particles are ZrO 2 -Al 2 o 3 (ZTA), which acts as a reinforcing phase, by volume ratio, cermet reinforcing particles: high alloy matrix material = 1:3.

[0122] In the high-alloy matrix cermet composite material, the components co...

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Abstract

The invention discloses a high alloy matrix metal-ceramic composite and a preparation method thereof, and belongs to the field of wear-resistant materials. According to the high alloy matrix metal-ceramic composite, the volume ratio of high alloy matrix materials to metal-ceramic reinforced particles is (1-10):1; the high alloy matrix materials comprise 1-8% of C, main alloying elements, minor additive elements and the balance Fe and unavoidable impurities; the main alloying elements comprise 0-60%of Ni, 0-60% of Mo, 0-40% of Cr, 0-30% of Mn, 0-20% of V, 0-20% of Ti, 0-15% of W and 0-15% of Nb; and the minor additive elements are one or more of B, Si, Zr, Cu, Co, Al and rare earth. The preparation method adopts a programmed temperature-controlled liquid phase sintering method for preparation and can be used directly for wear-resisting materials, or for wear-resisting materials after subsequent heat treatment; and the metallurgical bonding interface between the reinforced phase and thehigh alloy matrix in the composite reaches 40[mu]m-1mm, no cracks occurs after the integral heat treatment, and the service conditions in the wear-resistant material field are met.

Description

technical field [0001] The invention belongs to the technical field of wear-resistant materials, and in particular relates to a high-alloy matrix cermet composite material and a preparation method thereof. Background technique [0002] With the rapid development of science and technology and modern industry, wear-resistant materials are more and more widely used in the industrial field. Because the annual economic loss caused by the wear of metal materials is quite staggering, wear-resistant materials have always been one of the key research directions in the field of metallurgy. [0003] High manganese steel is an early application of wear-resistant materials. The carbides in the as-cast structure precipitate along the grain boundaries. After water toughening, the carbides dissolve in the austenite to form a single-phase austenite structure, which has good hardness and impact toughness. However, high manganese steel needs to undergo certain plastic deformation before it c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/05C22C1/10C22C32/00C22F1/00
CPCC22C1/05C22C32/00C22F1/00C22F1/002
Inventor 佟伟平李萍田晨
Owner NORTHEASTERN UNIV
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