High-entropy alloy stirring friction material additive device and preparation process

Abstract

The invention discloses a high-entropy alloy stirring friction material additive device which comprises a stirring head, a heat sink module set is arranged at the upper end of the stirring head, a feeding port is formed in one side of the heat sink module set, a cooling liquid outlet and a cooling liquid inlet are sequentially and vertically formed in the lower end of the feeding port, a rotary friction mechanism is arranged in an inner cavity of the heat sink module set, a crushing mechanism is arranged at the upper end of the rotary friction mechanism, a driving module set is arranged at the upper end of the heat sink module set, pure metal wires with different thicknesses are fed into the feeding port and crushed through rapid rotation of a grinding wheel to obtain flaky sheets, the flaky sheets are subjected to heat fusion through the friction rotation mechanism and then cooled, and after solidification, the flaky sheets are stacked layer by layer to complete high-entropy alloy material additive preparation. According to the high-entropy alloy stirring friction material additive device and the preparation process, high-entropy alloy preparation and stirring friction material additive are combined together, two processes are combined into one process, the material additive efficiency of the high-entropy alloy is greatly improved, different proportions can be rapidly adjusted, and the experiment progress of a novel high-entropy alloy material is accelerated.

Description

technical field [0001] The invention relates to the technical field of metal additives, in particular to a high-entropy alloy friction stir additive device and a preparation process. Background technique [0002] Regarding friction stir manufacturing, under the action of constant or increasing pressure and torque, the stirring motion of the stirring head is used to generate friction heat and plastic deformation heat on the friction surface and its surrounding areas, so that the temperature of the surrounding areas rises to a level close to but generally low In the temperature range of the melting point, the deformation resistance of the material is reduced, the plasticity is improved, and the oxide film on the interface is broken. Under the action of upsetting pressure, the material undergoes plastic deformation and flow, and the solid-state fusion is achieved through molecular diffusion and recrystallization at the interface. processing methods. [0003] Additive is differ...

AI Technical Summary

Problems solved by technology

Additive can be simply understood as 3D printing technology. If you want to manufacture high-entropy alloy with existing friction stir additive technology, you must first prepare high-entropy alloy as wire or powder, and then perform friction additive. The steps are cumbersome

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