A kind of high-strength ferromanganese alloy and preparation method thereof

Abstract

The invention discloses high-strength manganese-iron alloy and a preparation method thereof. The high-strength manganese-iron alloy contains the following components in percentage by weight: 0.4%-0.6%of carbon nanofibres, 6.2%-7.8% of manganese, 4.6%-6.5% of chromium, 0.3%-0.6% of zirconium, 0.1%-0.2% of calcium, 0.8%-1.4% of molybdenum, 0.6%-0.8% of nano-tungsten nitride, 0.2%-0.4% of nano-boronnitride, 0.2%-0.4% of vanadium, 0.03%-0.05% of cerium oxide, impurity phosphorus is less than or equal to 0.03%, sulfur is less than or equal to 0.03% and the balance of iron. The manganese-iron alloy is added with materials of rare earth, inorganic nano-particles, a refiner add the like based on a manganese-iron matrix and is subjected to thermal treatment, so that the tenacity and strength of the manganese-iron alloy are improved, the manganese-iron alloy has good hardness and machining property, and furthermore, the service life of the manganese-iron alloy is prolonged.

Description

technical field The invention belongs to the field of metal materials and their preparation, and in particular relates to a high-strength ferromanganese alloy and a preparation method thereof. Background technique Iron-based superalloys are special alloys based on iron and alloyed with various elements to improve their high-temperature mechanical properties and high-temperature corrosion resistance. Compared with nickel-based and cobalt-based superalloys, iron-based superalloys are inexpensive, and are widely used in high-temperature structural materials in the fields of national defense, energy, aviation, and nuclear reactions. However, due to insufficient hardenability and toughness of iron, low hardness, poor wear resistance, etc., its service life will be short, which cannot meet the needs of industrial development. Therefore, on the basis of existing iron-based alloys, we have developed a ferromanganese alloy with ideal toughness and strength, good hardness and machina...

AI Technical Summary

Problems solved by technology

However, due to insufficient hardenability and toughness of iron, low hardness, poor wear resistance, etc., its service life will be short, which cannot meet the needs of industrial development.