Super-strength abrasion-resistant alloy and preparation method thereof

Abstract

The invention discloses a super-strength abrasion-resistant alloy, and belongs to the technical field of abrasion-resistant alloys. The super-strength abrasion-resistant alloy is prepared from the components in percentage by weight: 0.25-0.60% of C, 0.001-0.005% of B, 1.8-2.2% of Cr, 0.25-0.35% of Nb, 0.5-0.8% of Si, 0.6-0.9% of Mn, 0.4-0.5% of Mo, 0.3-0.7% of Cu, 0.025-0.030% of N, 0.35-0.50% ofRe, less than 0.03% of S, less than 0.03% of P and the balance of Fe. Valuable elements such as chromium and molybdenum are not added to the prepared alloy, boron is taken as a main alloy element, anabrasion-resistant skeleton is obtained through high hardness boride and carbide containing boron relying on boron formed in steel to obtain high abrasion-resistant resistance. Trace amount of ceriumimproves the distribution morphology of a hard phase in a matrix, and further improves the properties of the alloy. An alloy preparation method has lower production process cost, the modification treatment technology has lower cost, and a modification treatment method is relatively simple.

Description

technical field [0001] The invention belongs to the technical field of wear-resistant alloys, in particular to a super-strength wear-resistant alloy and a preparation method thereof. Background technique [0002] Wear and tear is ubiquitous in many industrial sectors and has become an important cause of equipment failure or material damage, while it also consumes a lot of energy and materials. Various engineering excavation and loader bucket teeth, various wear-resistant conveying pipes, various crusher hammers and jaw plates, and various track shoes made of wear-resistant alloy cast steel, due to high-strength, harsh weather and other working conditions , and its wear is more serious. [0003] At present, the widely used metal wear-resistant materials are: high manganese steel; medium and low alloy steel; high chromium cast iron; high speed steel. These materials have solved the problem of non-wear resistance of metals to varying degrees, but each has defects of varying d...

AI Technical Summary

Problems solved by technology

These materials have solved the problem of non-wear resistance of metals to varying degrees, but each has defects of varying degrees: as we all know, high manganese steel has high wear resistance only under the action of high hardness abrasives, strong impact and high stress. And good toughness, good safety performance

However, due to the high cost and complicated manufacturing process, it is generally only used to manufacture parts such as cutters and rolls, so it is difficult to promote it on a large scale.

[0004] At present, foreign wear-resistant parts are mostly made of expensive precious metals and materials with high alloy content, such as Russia with a chromium content of 30%, Germany with a large amount of nickel, and Japan with expensive niobium. The production cost is high and the process is complicated. Imported The product is very expensive

my country is a country that lacks nickel and chromium. The overall production level of wear-resistant parts is backward. The wear resistance of materials is average, the materials are easy to break and damage, the energy consumption is high, and the environmental pollution is serious. If a large amount of precious metals are used, the production cost will be increased.