A high-throughput preparation method of high-temperature titanium alloy materials based on laser in-situ metallurgy

Abstract

The invention provides a high-throughput preparation method of high-temperature titanium alloy materials based on laser in-situ metallurgy, which includes the following steps: 1) taking titanium alloy as the basic component, adding rare earth and / or high melting point elements, and designing multiple components at one time A new type of high-temperature titanium alloy with a distribution ratio; 2) By symmetrically configuring multiple lateral powder feeding heads and multiple independent powder flow rates corresponding to the lateral powder feeding heads one by one around the output mirror of the coaxial wire feeding laser processing head The monitoring module performs wire feeding and powder feeding; 3) Carry out wire feeding and powder feeding according to the configured wire feeding speed and powder feeding speed, and start the laser at the same time, and make the high-energy ring laser beam melt the wire in situ according to at least one set of preset process parameters and powder, high-throughput forming to obtain block-shaped ingots of new high-temperature titanium alloys with different ratios of various components; 4) performing high-temperature compression tests on the ingots of high-temperature titanium alloys to determine the compressive strength, Based on this, the composition of the high temperature titanium alloy is optimized.

Description

technical field [0001] The invention relates to laser additive manufacturing products and methods, in particular to a high-throughput preparation method of high-temperature titanium alloy materials based on laser in-situ metallurgy. Background technique [0002] High-temperature titanium alloy has excellent high-temperature mechanical properties and high-temperature oxidation resistance, especially in the harsh working conditions of high temperature, high speed, and high pressure when the aeroengine is running, it can take into account high temperature performance and high thrust-to-weight ratio, and is an indispensable part of the aerospace field. a structural material. The United States, Russia, and the United Kingdom have all established their own high-temperature titanium alloy systems. my country has also independently developed Ti60, Ti600 and other alloys from the initial imitation, and its long-term service temperature can reach 600°C. 600°C is also considered to be...

AI Technical Summary

Problems solved by technology

The traditional smelting, casting and forging processes have great difficulties in controlling the uniform composition and impurity content, and can only prepare alloys with one composition ratio at a time, which seriously restricts the development and design efficiency of new high-temperature titanium alloys.

Images