A kind of preparation method of wear-resistant and anti-corrosion nickel base alloy wire

Abstract

The invention discloses an abrasion-proof and corrosion-resistant nickel-based alloy wire and a preparation method thereof. The alloy wire comprises the following components: 17-21% of C, 20-25% of Co, 1.8-2.2% of W, 6.4-9.5% of Mo, 1.4-1.8% of Al, 3.2-4.5% of Ti, 0.1-0.5% of Nb, 0.1-0.5% of Hf, 1.2-1.8% of Ta, 0.03-0.06% of Re, 0.01-0.05% of Ce, 0.02-0.1% of C, 0.005-0.015% of B, 0.02-0.07% of Zr, 0.005-0.008% of Mg, and the balance Ni. The preparation technology of the alloy comprises the steps of vacuum smelting, remelting, forging, hot rolling, drawing, solid solution treatment and aging treatment, namely, raw materials are prepared and smelted based on mass percent and then smelted; the smelted materials are forged and rolled into obtain alloyed wire rods; the alloyed wire rods are drawn at a plurality of times to obtain phi 0.05-0.4mm alloy wires; finally the alloy wires are subjected to solid solution treatment and aging treatment. The abrasion-proof and corrosion-resistant nickel-based alloy wire can be used as a brush wire material for brush sealing of an aircraft engine, a gas turbine, etc., thus the brush sealing effect can be effectively improved, and the service life can be prolonged.

Description

technical field [0001] The invention relates to a wear-resistant and corrosion-resistant nickel-based alloy wire and a preparation method thereof, belonging to the technical field of material processing. It is specifically used to manufacture high-strength brush filament materials that are resistant to high-temperature wear, high-temperature corrosion, and oxidation. Background technique [0002] The brush seal is an air sealing device used in key parts of turbomachinery such as engines, steam turbines and steam engines. It is mainly composed of brush rings and corresponding matching runways. Among them, the brush ring is mainly composed of the front plate, the back plate and the superalloy brush wire with a diameter of about 0.06 ~ 0.3mm clamped between them. It is the best alternative structure for the air system grate seal. The brush wire is The most important material part of the brush seal device requires the brush filament to have good properties such as high temperat...

AI Technical Summary

Problems solved by technology

[0006] However, due to the unclear mechanism of action of alloying elements, the quality of products produced by the original single processing and preparation process is unstable, and the content of trace harmful elements cannot be effectively controlled. Excessive inclusions, coarse grains, and insufficient aging hardness lead to product qualification rate, poor material quality, and reduced reliability, which lead to fracture, wear and failure of alloy materials during use, and seriously affect the service life of alloys