Micro-nanometer oxide particle reinforced high-abrasion-resistance nickel base alloy powder and preparation method thereof

Abstract

The invention provides micro-nanometer oxide particle reinforced high-abrasion-resistance nickel base alloy powder and a preparation method of the micro-nanometer oxide particle reinforced high-abrasion-resistance nickel base alloy powder. The micro-nanometer oxide particle reinforced high-abrasion-resistance nickel base alloy powder is characterized in that the nickel base alloy powder is composed of matrix alloy powder, micro-nanometer oxide hard particles and a binding agent and comprises 50%-98% of nickel base alloy powder, 1%-45% of micro-nanometer Al2O3 or one of micro-nanometer Cr3C2 and micro-nanometer ZrO2 or combined micro-nanometer mixture powder composed of the micro-nanometer Cr3C2 and the micro-nanometer ZrO2 and 1%-5% of binding agent, and the nickel base alloy powder is combined powder. The preparation technology of the micro-nanometer oxide particle reinforced high-abrasion-resistance nickel base alloy powder comprises the steps of preparation of the matrix alloy powder, addition of the micro-nanometer oxide particles, addition of the binding agent, mixing and ball milling, powder combination, drying, breaking and screening. The micro-nanometer oxide particle reinforced nickel base alloy is high in rigidity, good in abrasion resistance and corrosion resistance, particularly suitable for laser cladding of an alloy workpiece with high surface rigidity and high abrasion-resistance, and capable of effectively avoiding segregation caused by a large component ratio difference in the process of storage, transportation and use.

Description

technical field [0001] The invention belongs to the technical field of nickel-based alloys, and relates to a micro-nano oxide particle reinforced alloy powder and a preparation method thereof, in particular to a micro-nano oxide particle-reinforced high wear-resistant nickel-based alloy powder and a preparation method thereof. Grinding nickel-based alloy powder is suitable for laser cladding parts with high wear resistance. Background technique [0002] In modern daily life and industrial production, wear and corrosion of metal materials will appear in various fields. It is one of the two main ways to damage mechanical parts and engineering components. Corrosion will lead to a large amount of consumption of mechanical parts, while wear It is one of the important reasons leading to the failure of mechanical parts. While they consume a lot of metal materials, they also waste a lot of resources, accounting for a very large proportion of economic losses. [0003] The failure o...

AI Technical Summary

Problems solved by technology

The added hard particles are larger and different in density from the matrix metal, and the distribution of the particles in the cladding layer is often uneven, usually showing a gradient distribution; the wettability, stability, and expansion coefficient of the added particle material and the matrix and chemical reactivity all lead to the inhomogeneity of the structure and performance of the cladding layer

Moreover, the prepared combined powder is prone to segregation during storage, transportation and use due to the large difference in the specific gravity of each component.

Commercial market supply cannot be carried out, and there is no commercial sale of micro-nano particle-enhanced laser cladding special powder in the market

Due to the above reasons, there is no special combination powder for laser cladding, which restricts the application of laser cladding in the field of high wear-resistant conditions.