激光粉末床融合含铒铝合金研究进展
Research and Progress of Aluminum Alloys Containing Erbium by Laser Powder Bed Fusion
毕舰镭 1魏午 1翟玉妍 1裴瑜 1文胜平 1荣莉 1黄晖 1聂祚仁1
作者信息
- 1. 北京工业大学新型功能材料教育部重点实验室,北京 100124
- 折叠
摘要
近年来增材制造铝合金技术得到迅速发展,尤其是激光粉末床融合技术(LPBF)在部分构件上实现了应用验证.在LPBF技术中,常通过添加微量元素,如稀土铒(Er)元素等,来改善合金的成形性和力学性能.本研究从Er在铝合金中的作用机理出发,系统性概述Er元素在LPBF特殊热环境中的演变机制以及时效响应.总结在LPBF工艺下,Er元素在Al-Si、Al-Mg和Al-Zn-Mg-Cu合金中的存在形式和应用,对比不同含铒铝合金的力学性能,并对LPBF含铒铝合金的发展进行了展望.
Abstract
Additive manufacturing aluminium alloy technology has been rapidly developed in recent years,especially the laser powder bed fusion(LPBF)technology,which has achieved application verification on some components.In the LPBF technolo-gy,the formability and mechanical properties of alloys are often improved by adding trace elements,for example the rare earth erbium(Er)element.In this study,the evolvement mechanism and time response of Er element on the formability,microstruc-ture and mechanical properties of aluminium alloys in the LPBF process.The existence and application of Er element in the Al-Si,Al-Mg and Al-Zn-Mg-Cu alloys by the LPBF technology,and the mechanical properties of aluminium alloys containing Er element are compared.The future development of the LPBF aluminium alloys containing Er element is put forward.
关键词
激光粉末床融合技术/铝合金/微合金化/Er/ZrKey words
laser powder bed fusion/aluminum alloy/microalloying/Er/Zr引用本文复制引用
基金项目
国家自然科学基金(51621003)
国家重点研发计划(2021YFB3704202)
国家重点研发计划(2021YFB3704203)
国家重点研发计划(2021YFB3704205)
北京市自然科学基金(2202009)
出版年
2024
NETL
NSTL
万方数据