A kind of high-boron iron-based erosion-corrosion resistant alloy and preparation method thereof

Abstract

The invention discloses a high boron iron-based erosion-corrosion resistant alloy. The alloy is composed of the following ingredients by weight percentage: 0.10-0.17% of C, 1.50-2.10% of B, 0.40-0.80% of Si, 0.40-0.80% of Mn, 2.00-3.00% of Ni, 16.10-18.20% of Cr, 0.10-0.20% of Ce, 0.30-0.50% of Ti, 0.05-0.10% of N, 0.05-0.10% of Al, 0.04-0.10% of Ca, less than 0.03% of P, less than 0.03% of S and the balance of Fe and other inevitable impurities. In addition, the invention discloses a preparation method of the alloy. The alloy is mainly constituted by martensite, and has excellent corrosion resistance; hard-phase borides are distributed in a matrix, so that the erosion-corrosion resistance of the alloy can be obviously improved.

Description

technical field

[0001] The invention belongs to the technical field of wear-resistant and corrosion-resistant metal materials, and in particular relates to a high-boron iron-based erosion-resistant corrosion-resistant alloy and a preparation method thereof. Background technique

[0002] Erosion corrosion generally exists in mining, metallurgy, coal, water conservancy and other important national economic fields. The key flow-passing components in the material conveying equipment have been in the flowing corrosive medium for a long time, and are continuously subjected to the erosion and corrosion of the medium. The erosion and corrosion of the medium promote each other, and have a more destructive effect than pure erosion and pure corrosion. Therefore, it is of great significance to study high-performance erosion-resistant materials.

[0003] In recent years, in order to obtain new high-performance erosion-resistant materials, a lot of research work has been carried out at ...

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