一种Ti2AlNb轮盘与TiAl叶片涡轮结构件的粉末热等静压一体成形方法
By using powder hot isostatic pressing as an integral forming method, a gradient transition between Ti2AlNb disk and TiAl blade was achieved, solving the problems of insufficient bonding strength and stress concentration in the existing technology, and realizing the improvement of high-temperature service life and the lightweighting of turbine structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SINO EURO MATERIALS TECH OF XIAN CO LTD
- Filing Date
- 2026-06-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies make it difficult to achieve a gradient transition between Ti2AlNb disks and TiAl blades, resulting in insufficient joint strength, stress concentration, and fatigue failure. Furthermore, traditional connection methods increase turbine weight and cost.
By employing a powder hot isostatic pressing (HOP) integrated forming method, Ti2AlNb alloy powder, TiAl alloy powder, and multi-level gradient powder are prepared separately through the design of a casing. Combined with HOP technology, the integrated and dense forming of the disk and blades is achieved. Furthermore, a multi-level gradient layer is set in the interface transition zone to realize continuous changes in chemical composition.
It significantly improves the bonding strength and high-temperature service life, reduces machining and production costs, lowers the turbine structure weight, and enhances structural integrity and reliability.
Smart Images
Figure CN122400568A_ABST