Electrochemical polishing method capable of realizing single-phase solid solution high-entropy alloy

Abstract

The invention discloses an electrochemical polishing method capable of realizing a single-phase solid solution high-entropy alloy. The electrochemical polishing method specifically comprises the following steps of carrying out electrochemical polishing on a high-entropy alloy of a corrosion-resistant element (Mo element) at normal temperature, taking a FeCoCrNiMo alloy as a research object, and comparing 4GPa and 7GPa alloy materials with different contents and the same content of Mo at normal pressure with a microstructure and an element distribution diagram of an alloy material subjected to electrochemical polishing at normal temperature under a scanning electron microscope (SEM), and researching an electrochemical polishing result of the single-phase solid solution high-entropy alloy. The electrochemical polishing method of the single-phase solid solution high-entropy alloy is researched under the normal temperature condition, and the method has great significance in exploring and establishing some basic theories in the electrochemical polishing process of a single-phase solid solution and expanding the possibility of electrochemical polishing of a novel corrosion-resistant material through the single-phase solid solution.

Description

technical field [0001] The invention belongs to the technical field of electrochemistry, and in particular relates to an electrochemical polishing method capable of realizing single-phase solid solution high-entropy alloys. Background technique [0002] A solid solution is an alloy phase in which solute atoms dissolve into a solvent lattice while remaining solvent-like. A solid solution with only one phase is called a single-phase solid solution. Solid solutions generally have good mechanical properties, and at the same time, the lattice structure has a certain distortion, and is in a high-energy activation state, which is conducive to chemical reactions. In addition to outstanding mechanical properties, high-entropy alloys also have excellent properties such as high thermal stability, high hardness, and wear resistance. Therefore, high-entropy alloys are expected to be used as structural materials in many engineering applications. However, through electrochemical polishin...

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Problems solved by technology

Since the research on the corrosion performance of high-entropy alloys in my country started relatively late, with the deepening of the research, the research on microstructure regulation to improve the corrosion resistance of alloys, and the research on the passive film of high-entropy alloys has been gradually carried out, but it is still in the preliminary stage. Lack of system and guidance

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