A kind of special wear-resistant alloy material and preparation method thereof

Abstract

The invention relates to a special abrasion-resistant alloy material comprising the following chemical elementary components in percentage by mass: 0.1-0.3% of carbon, 0.3-0.5% of silicon, 0.1-0.2% of boron, 3.0-3.3% of chromium, 11.0-11.5% of nickel, 3.3-3.5% of cobalt, 0.2-0.5% of molybdenum, 0.6-0.8% of copper, 0.01-0.03% of osmium, 0.003-0.005% of iridium, 0.004-0.006% of ruthenium, 1.0-2.5% of rhodium, equal to or less than 0.030% of phosphorus, equal to or less than 0.030% of sulphur and the balance of iron. According to the invention, the rare earth elements are combined with the other raw metal materials and the proportion, the production process and the feed order are reasonably set to ensure that the formed alloy material has a good comprehensive mechanical property and particularly has the characteristics of high strength and hardness, excellent abrasive resistance and the like, so that the life of abrasion-resistant parts can be remarkably prolonged, the damage rate of machinery is reduced and the security coefficient is increased; part of scrap iron is adopted as the raw material to ensure that the quality of the alloy is stable and uniform; and a refining agent is added to ensure that porosity is reduced by 1-2 degrees.

Description

technical field [0001] The invention relates to the field of metal material preparation, in particular to a special wear-resistant alloy material and a preparation method thereof. Background technique [0002] The development of alloy steel has a history of more than 100 years. So far, a variety of alloy steels have been applied in industry, mainly including the following types: quenched and tempered steel, spring steel, tool steel, high speed steel, die steel, high school Low-carbon alloy steel, etc., so far, although alloy steel technology has been greatly developed, there are still many problems, such as wear resistance, hardness, rust resistance, corrosion resistance, high and low temperature resistance, brittleness, toughness, Costs cannot be taken into account. In many cases, the production requirements cannot be met, and further improvements are needed to improve production efficiency, reduce costs, improve safety, provide guarantee for the development of high-tech, a...

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Problems solved by technology

[0002] The development of alloy steel has a history of more than 100 years. So far, a variety of alloy steels have been applied in industry, mainly including the following types: quenched and tempered steel, spring steel, tool steel, high speed steel, die steel, high school Low-carbon alloy steel, etc., so far, although alloy steel technology has been greatly developed, there are still many problems, such as wear resistance, hardness, rust resistance, corrosion resistance, high and low temperature resistance, brittleness, toughness, Costs cannot be taken into account. In many cases, the production requirements cannot be met, and further improvements are needed to improve production efficiency, reduce costs, improve safety, provide guarantee for the development of high-tech, and provide impetus for social development. There are still many tasks to be done. difficult