研究目的
Investigating the microstructure of a Ti–50 wt% Ta alloy fabricated by laser powder bed fusion (LPBF) for biomedical applications, focusing on the formation of cellular and dendritic structures and phase transformation.
研究成果
The LPBFed Ti–50 wt% Ta alloy exhibited nearly full density and in situ alloying with increased laser energy density. Cellular and dendritic structures formed due to constitutional undercooling, with retained β phases and α″ phases observed. The α″ phase was located at cellular boundaries, indicating microsegregation. The study provides insights into controlling microstructures in Ti–Ta alloys via LPBF for potential biomedical applications.
研究不足
The study focuses on the microstructure and phase composition of LPBFed Ti–50 wt% Ta alloy, with limited discussion on mechanical properties and potential biomedical applications. The influence of LPBF parameters on mechanical properties and long-term biocompatibility needs further investigation.
