A kind of preparation method of red copper and nickel base superalloy laminated composite component

Abstract

The invention discloses a preparation method of a laminated composite structural member of red copper and nickel-base superalloy. The preparation method comprises the following steps of firstly, preparing a red copper structural member, and performing cleaning and preheating treatment on the red copper structural member; then, preparing a transition surfacing layer on the combined surface of the red copper structural member and the nickel-base superalloy by adopting a filler rod type TIG welding technology; and performing surfacing on the nickel-base superalloy structural member on the transition surfacing layer by adopting a silk feeding type laser or arc direct-melting depositing technique so as to obtain the laminated composite structural member of the red copper and the nickel-base superalloy, which consists of the red copper structural member, the transition surfacing layer and the nickel-base superalloy structural member. According to the preparation method disclosed by the invention, an applicable transition surfacing layer is prepared, so that the welding problem of the red copper and the nickel-base superalloy is effectively solved, and the laminated composite structural member has the characteristics of being high in production efficiency, good in mechanical property, long in service life, small in influence by the shape and the dimension of the mechanical property, wide in application range and the like.

Description

technical field [0001] The invention specifically relates to a preparation method of a red copper and nickel-based superalloy laminated composite component. Background technique [0002] In engineering components such as high-temperature nozzles, it is often required that the high-temperature side combined with the heat source has good high-temperature resistance, while the other side has good thermal conductivity. At present, the laminated composite structure of ceramics and red copper is mostly used, but the hardness and brittleness of ceramics are high, it is difficult to process, and it is greatly affected by geometric shape and size; at the same time, due to the great difference in thermophysical and mechanical properties of ceramics and metals, the two There are large thermal stress and residual stress at the welding joint interface, which is easy to cause cracks and fractures on the ceramic side, which in turn affects the life of the components. In addition, brazing ...

AI Technical Summary

Problems solved by technology

At present, there are few studies on the welding of red copper and nickel-based superalloy dissimilar materials. The research mainly focuses on nickel-based corrosion-resistant alloy powder on the surface of red copper by thermal spraying or powder-feeding laser stacking to increase the corrosion resistance of red copper components. or hardness, and when powder materials are used, the material utilization rate is low, and there are problems such as dust pollution

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