High-Performance Aluminum-Based Materials Processed by Laser Powder Bed Fusion:Process,Microstructure,Defects and Properties Coordination

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外文摘要：Significant contributions have been made to understanding the processing of various metal materials using laser powder bed fusion(LPBF)for the design and fabrication of high-performance metal components in many fields.For laser additive manufacturing,aluminum-based materials are regarded as difficult-to-fabricate materials be-cause of their special physical properties,including low density,low laser absorption,high thermal conductivity,and ease of oxidation.Currently,LPBF-formed structural materials require high densification,fine grains,high specific strength,high ductility,and optimized physical or chemical properties.Therefore,comprehensive un-derstanding of the fabrication and performance of Al-based materials processed by LPBF is of significant value.This paper covers emerging research on aluminum-based materials using LPBF,providing an overall view of the basic scientific mechanisms behind manufacturing.The state-of-the-art researches of aluminum-based materials for LPBF formability as well as the microstructures,properties and corresponding metallurgical mechanisms are reviewed.The mechanisms of some of the main defects(pores,cracks,balling,and oxide inclusions)and control measures are also discussed.A summary and outlook for the further development of Al-based materials for LPBF are addressed.

外文关键词：

Additive manufacturingLaser powder bed fusionHigh performance aluminumProperties

作者：

He Liu、Dongdong Gu、Lixia Xi、Han Zhang、Keyu Shi、Bin Wu、Rui Zhang、Junfeng Qi

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作者单位：

Jiangsu Provincial Research Center for Laser Additive Manufacturing of High-Performance Components,College of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing,210016,China

AVIC Shenyang Aircraft Design Institute,Shenyang,110035,China

Beijing Satellite Manufacturing Factory Co.,Ltd.,Beijing,100094,China

基金：

National Natural Science Foundation of ChinaKey Research and Development Program of Jiangsu ProvinceKey Research and Development Program of Jiangsu ProvincePreresearch Project of Civil Aerospace TechnologyPostgraduate Research & Practice Innovation Program of Jiangsu ProvinceState Key Laboratory of Mechanics and Control for Aerospace Structures

项目编号：

52225503BE2022069BE2022069-1D020302KYCX23_0366MCAS-S-0423G01

出版年：

2024

DOI：

10.1016/j.amf.2024.200145

中国机械工程学报:增材制造前沿(英文)

ISSN：

年,卷(期)：2024.3(2)