Topological optimization structure ceramic matrix and nickel-based high-temperature alloy integrated component and preparation method thereof

Abstract

The invention discloses a topological optimization structure ceramic matrix and nickel-based high-temperature alloy integrated component and a preparation method thereof. A calcium oxide ceramic basedcasting mould with hydrating resistance is prepared; a ceramic matrix is placed in the bottom space of the calcium oxide based ceramic casting mould, and the periphery of the ceramic matrix and the casting mould are sealed through zirconium dioxide cellucotton; a calcium oxide funnel is arranged at an opening of the calcium oxide based casting mould, an outlet of the funnel is blocked by a pure nickel plug, and a solid-state nickel-based high-temperature alloy is placed in the funnel; and the calcium oxide based casting mould is heated under the vacuum environment, a nickel-based high-temperature alloy phase is firstly made to become a liquid state, then the pure nickel plug is smelted, the liquid-state nickel-based high-temperature alloy falls down onto the ceramic matrix, a ceramic matrix topological structure is filled with the liquid-state nickel-based high-temperature alloy, the liquid-state nickel-based high-temperature alloy is solidified, and the composite component is obtained. By means of the component and the preparation method, the problems that under the action of gravity, metal liquid drops cannot achieve complete mold filling, and the surface quality is influenced by the complex structure and solidification can be solved.

Description

technical field [0001] The invention belongs to the field of advanced manufacturing technology, and in particular relates to an integrated component of a topology-optimized structure ceramic substrate and a nickel-based superalloy and a preparation method thereof. Background technique [0002] In the preparation process of ceramic / metal integrated components, the ceramic matrix with a certain complex topology optimization structure is formed by gel injection molding, and then the surface of the ceramic matrix is ​​pre-alloyed. The superalloy is poured into the topologically optimized ceramic matrix, and the superalloy will flow and fill the voids in the structure in the molten state, and the ceramic / metal integrated component will be obtained after cooling. Pouring molten superalloys is a difficult point in the preparation of ceramic / metal integrated components. Superalloys mainly refer to nickel-based superalloys, and their melting temperature is about 1350°C. At the same ...

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Problems solved by technology

[0003] In order to solve the problems existing in the prior art, the object of the present invention is to provide a topologically optimized structural ceramic substrate and nickel-based superalloy integrated component and its preparation method. The present invention can solve the problem that metal droplets cannot be completely filled under the action of gravity Type complex structure and solidification affect surface quality

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