This project optimizes the IN939 superalloy for PBF-LB additive manufacturing by incorporating TiB2 nano-ceramics. By acting as an inoculation agent, TiB2 transforms crack-prone columnar texture into a fine equiaxed structure, overcoming the alloy’s "hard-to-weld" nature. The research aims to define a robust processing map (up to 2.5 wt.% TiB2) and high-productivity parameters (90 μm layers) to enable defect-free components for high-efficiency hydrogen turbines.

FAST/FSI-J-26-9010

Czech

Křištof Michal, Ing. - principal person responsible
Dvořák Karel, doc. Ing., Ph.D. - fellow researcher
Koutný Daniel, doc. Ing., Ph.D. - fellow researcher
Slezák Tomáš, Ing. - fellow researcher

Faculty of Civil Engineering
- responsible department (27.1.2026 - not assigned)
Faculty of Mechanical Engineering
- internal (1.1.2026 - 31.12.2026)
Institute of Machine and Industrial Design
- internal (1.1.2026 - 31.12.2026)
Institute of Technology of Building Materials and Components
- internal (1.1.2026 - 31.12.2026)
Faculty of Civil Engineering
- beneficiary (1.1.2026 - 31.12.2026)

Responsibility: Křištof Michal, Ing.