High-boron, iron-based and abrasion-resistant alloy material and production method thereof

Abstract

The invention relates to the field of abrasion resistant materials, in particular to a high-boron, iron-based and abrasion-resistant alloy material and a production method thereof. The high-boron, iron-based and abrasion-resistant alloy material is composed of, by mass, 0.4-0.5% of C, 2.0-2.5% of B, lower than or equal to 1.5% of Si, 0.8-1.5% of Mn, 0.6-0.8% of Cr, 0.1-0.3% of Mo, 0.5-1.0% of Ti, lower than or equal to 0.04% of S, lower than or equal to 0.04% of P and the balance Fe. By means of the production method, an electromagnetic stirrer is omitted, and the cost of the production process is low; the cost of the modification treatment technology is low, and the modification treatment method is simple. The defects that Fe2B in an existing high-boron and abrasion-resistant alloy material is of a net form, and the number of particles of the net form needs to be decreased by prolonging the reservation time of high temperature or adopting electromagnetic mixing in heat treatment are overcome. The roughness and performance reliability of the high-boron, iron-based and abrasion-resistant alloy material are improved, and the overall use performance is further improved.

Description

technical field [0001] The invention relates to the field of wear-resistant materials, in particular to a high-boron iron-based wear-resistant alloy material and a production method thereof. Background technique [0002] At present, in the field of wear-resistant materials, wear-resistant materials with martensite or bainite matrix structure or third-generation wear-resistant materials with particle-reinforced phases in addition to martensite, bainite or retained austenite matrix are mostly used. Abrasive material - high chromium cast iron develops wear-resistant parts, because there is a high hardness reinforcing phase Cr in high chromium cast iron 7 C 3 , its carbide microhardness has reached HV1300~1600, so its performance has been greatly improved compared with the previous two generations of wear-resistant materials - white cast iron and high manganese steel, and its hardness can reach HRC60~65, but due to its carbide It is usually long and thick, so its impact toughn...

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Problems solved by technology

[0011] However, using electromagnetic stirring method to improve, the device will be too complicated, the operating cost will be relatively high, and some applications will be difficult; the heat treatment method is used to make the mesh boride show a broken mesh, because the holding time of the high temperature section is too long , it is easy to coarsen the matrix structure, but it will affect its wear resistance, which is not good for wear resistance; and the method of adding a modifier can indeed achieve a better effect of modification treatment; however, there are certain requirements for the operator. The amount of modifier must be guaranteed; this method is highly dependent on the modifier

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