Laser-Based Additive Manufacturing Processability and Mechanical Properties of Al-Cu 224 Alloys with TiB Grain Refiner Additions.

• Tác giả: X-Grant Chen, Esmaeil Pourkhorshid, Paul Rometsch
• Ngôn ngữ: eng
• Thông tin xuất bản: Switzerland : Materials (Basel, Switzerland) , 2025
• Bộ sưu tập: NCBI
• ID: 77101

Tóm tắt

This study investigated the impact of TiB grain refiner additions on the microstructural evolution, hot tearing susceptibility, and mechanical properties of Al-Cu 224 alloys to enhance their processing performance during the selective laser melting (SLM) process. A simple laser surface remelting method was utilized to simulate laser-based rapid solidification. The results revealed that the addition of appropriate amounts of TiB grain refiner could completely eliminate the solidification cracks during the laser surface remelting process. The introduction of TiB