A 1200 °c-resistant high gamma prime nickel-based superalloy and a preparation method thereof
By using electron beam continuous directional solidification technology and multi-pass hot rolling control, a high γ′ phase nickel-based deformable superalloy was prepared, solving the problem of preparing high alloys and achieving excellent mechanical properties and efficient preparation of the superalloy at 1200℃.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DALIAN UNIV OF TECH
- Filing Date
- 2026-05-28
- Publication Date
- 2026-07-17
AI Technical Summary
Existing wrought high-temperature alloys cannot meet the requirements of extreme service temperature of 1200℃. The high degree of alloying leads to difficulties in smelting and preparation, poor hot workability, and the traditional process is lengthy, energy-intensive, and has a low yield.
Electron beam continuous directional solidification technology was used to prepare along <001> The columnar crystal structure with directional growth, combined with multi-pass hot rolling and heat preservation control, eliminates the hot extrusion process and directly produces crack-free high γ′ phase nickel-based deformable high temperature alloy rolled plates.
A high-γ′ phase nickel-based deformable superalloy with excellent mechanical properties was successfully prepared. It can withstand temperatures up to 1200℃ and has tensile strength and yield strength of over 130MPa. This solves the problem of difficult high-γ′ phase deformation and realizes the efficient preparation of superalloys.
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Figure CN122406038A_ABST