A review of selective laser melting of aluminum alloys: Processing, microstructure, property and developing trends

By Jinliang Zhang, B. Song, Qingsong Wei, D. Bourell, Yusheng Shi. Journal of Materials Science & Technology, 2019

1,025 citations recorded by the source corpus.

Abstract Selective laser melting (SLM) is an attractive rapid prototyping technology for the fabrication of metallic components with complex structure and high performance. Aluminum alloy, one of the most pervasive structural materials, is well known for high specific strength and good corrosion resistance. But the poor laser formability of aluminum alloy restricts its application. There are problems such as limited processable materials, immature process conditions and metallurgical defects on SLM processing aluminum alloys. Some efforts have been made to solve the above problems. This paper discusses the current research status both related to the scientific understanding and technology applications. The paper begins with a brief introduction of basic concepts of aluminum alloys and technology characterization of laser selective melting. In addition, solidification theory of SLM process and formation mechanism of metallurgical defects are discussed. Then, the current research status of microstructure, properties and heat treatment of SLM processing aluminum alloys is systematically reviewed respectively. Lastly, a future outlook is given at the end of this review paper.

Subfields: Automotive Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/223827de360f567f00bbe4d1dda8c57050e167bc

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Citations in the corpus

The Advancement of 7XXX Series Aluminum Alloys for Aircraft Structures: A Review (2021, background): “As a response to these various needs, the heat treatment processes of Al 7XXX alloys are correspondingly produced, mainly including homogenization treatment, thermal deformation like rolling, extrusion, solid solution, quenching, and aging treatment [20,21].”
3D printing of Aluminium alloys: Additive Manufacturing of Aluminium alloys using selective laser melting (2019, background): “For detailed descriptions of these challenges, the reader is referred to [134].”