Experimental method for quickly improving titanium alloy hardness at normal temperature

Abstract

The invention discloses an experimental method for quickly improving the hardness of a titanium alloy at normal temperature, which comprises the following steps: processing a titanium alloy raw material into a cylindrical sample, removing a surface oxide layer, and putting the sample between two electrodes of electric shock treatment equipment; of electric shock, performing electric shock treatment on the sample, removing a surface oxide layer after the sample is cooled to room temperature, cutting the sample subjected to electric shock treatment along a central axis through linear cutting, preparing a metallographic specimen through thermal inlaying, and grinding, polishing and cleaning the metallographic specimen; characterizing the microstructure change of the metallographic specimen before and after the electric shock treatment by using a scanning electron microscope, and detecting the hardness change of the metallographic specimen before and after the electric shock treatment byusing a microhardness tester; and comparing and analyzing the hardness change of the titanium alloy before and after treatment and the relationship between the hardness change and the microstructure to obtain an experimental conclusion. According to the method, the overall hardness of the titanium alloy can be quickly improved within a short time at the normal temperature, and the method has important significance in research and application of the titanium alloy.

Description

technical field [0001] The invention belongs to the field of titanium alloys, and in particular relates to an experimental method for rapidly increasing the hardness of titanium alloys at normal temperature. Background technique [0002] Due to its low density, high strength, high toughness and good corrosion resistance, titanium alloys are widely used in the fields of ships, aerospace, medical equipment and military industry. The common titanium alloy structure mainly contains α phase and β phase, and the different α phase and β phase contents directly affect the properties of titanium alloys. [0003] Under specific working conditions, titanium alloy materials with high hardness are required to serve in service. For this reason, some researchers have used solid solution treatment, ion implantation treatment, ultrasonic treatment and other methods to improve the hardness of titanium alloys, so that the materials can meet the use standards, but the above Conventional treatm...

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Problems solved by technology

[0003] Under specific working conditions, titanium alloy materials with high hardness are required to serve in service. For this reason, some researchers have used solid solution treatment, ion implantation treatment, ultrasonic treatment and other methods to improve the hardness of titanium alloys, so that the materials can meet the use standards, but the above Conventional treatment methods are complex, time-consuming, and require specific conditions such as high temperature, high pressure, and vacuum

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