Corrosion-resistant high-carbon steel alloy material and preparation method thereof

Abstract

A corrosion-resistant high-carbon steel alloy material comprises the following chemical elements by mass percent: 0.7-1.0 percent of carbon, 0.7-0.9 percent of silicon, 0.2-0.4 percent of copper, 0.05-0.08 percent of aluminum, 3.3-2.5 percent of manganese, 6.0-6.5 percent of Ni, 0.05-0.09 percent of titanium, 0.3-0.5 percent of boron, 0.1-0.3 percent of Mo, 0.002-0.005 percent of niobium, 0.001-0.003 percent of Ta, 0.03-0.05 percent of Co, less than or equal to 0.030 percent of P, less than or equal to 0.030 of S and the balance of iron. The alloy material, which is prepared from the raw materials including niobium and aluminum by reasonably setting the proportion, production process and dispensing order, has the characteristics of very high strength, hardness and wear resistance, low thermosensitivity, low temper brittleness, atmosphere corrosion resistance, and hydrogen, nitrogen and ammonia corrosion resistance at high temperature; the porosity is decreased by 1-2 degrees by adding a refining agent.

Description

technical field [0001] The invention relates to the field of metal material preparation, in particular to a corrosion-resistant high-carbon steel 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 ...

AI Technical Summary

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