Technology
Fuyao University of Science and Technology's Jiang Jianzhong Team Achieves Crack-Free L-PBF of Al85Cu5Li4Mg3Zn3 Lightweight Entropy Alloy
2026-10-20
Published online in Virtual and Physical Prototyping on October 20: The team led by Jiang Jianzhong at Fuyao University of Science and Technology (in collaboration with USTB and NUS) achieved crack-free laser powder bed fusion (L-PBF) processing of the Al85Cu5Li4Mg3Zn3 lightweight Al-based entropy alloy, reaching near-full density (≈99.99%). The alloy exhibits a room-temperature compressive strength exceeding 1000 MPa and maintains over 800 MPa at 200°C. The study also reveals stress-assisted phase transformation behavior during high-temperature compressive creep, providing new design insights for lighter, more heat-resistant aluminum alloy powders.
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福耀科技大学蒋建中团队实现Al85Cu5Li4Mg3Zn3轻质熵合金无裂纹L-PBF
《Virtual and Physical Prototyping》10月20日在线发表：福耀科技大学蒋建中团队（联北科大/NUS）实现Al85Cu5Li4Mg3Zn3轻质铝基熵合金的无裂纹激光粉末床熔融加工，近全致密（≈99.99%）；室温抗压超1000MPa，200°C仍保持800MPa以上；并揭示其高温压缩蠕变中的应力辅助相变行为，为更轻、更耐热的铝合金粉末提供新设计思路。