用于Ti2AlNb合金的激光沉积与线式滚压制造方法及集成装置
By combining laser deposition and linear rolling manufacturing methods in a low-oxygen environment, and utilizing the buffer layer and triaxial compressive stress constructed by laser heat-affected zone and linear rolling, the segregation and cracking problems of Ti2AlNb alloy were solved, realizing direct additive manufacturing with efficient grain refinement and improved mechanical properties.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YANSHAN UNIV
- Filing Date
- 2024-02-02
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional casting and additive manufacturing processes are difficult to effectively solve the problems of segregation, coarse grains and easy cracking of Ti2AlNb alloys. Furthermore, additive manufacturing processes suffer from problems such as high temperature gradient inhibiting the nucleation of new grains and poor mechanical properties.
By combining laser deposition and linear rolling manufacturing methods in a low-oxygen environment, the high-temperature B2 phase in the laser heat-affected zone provides a buffer layer and the triaxial compressive stress structure of linear rolling is achieved. Static recrystallization is induced by high-energy laser thermal cycling, thereby refining the grains and reducing the deformation resistance.
Direct additive manufacturing of Ti2AlNb alloys was achieved, avoiding cracking, improving the mechanical properties and processing efficiency of the material, and reducing manufacturing costs.
Smart Images
Figure CN117983833B_ABST