Compression behavior of selected laser melted Al/quasicrystal composite lattice structure
Source abstract
Abstract
In this work, Al/quasicrystal (QC) composite lattice samples with several cellular sizes ranging from 1.5 to 5 mm were manufactured using selective laser melting (SLM). The porosity of all the designed lattice structure samples is fixed as 50%. The morphology of QC reinforcement on the top surface changes from micro desquamated to nano in situ reacted, as the cellular size increases. The result indicates that cellular size has a significant influence on the compressive behavior of SLM processed lattice samples. As the cellular size increases from 1.5 to 5 mm, the fractural mechanism changes from three stages of linear elastic-plateau-densification to two stages of elastic collapse. Moreover, both the first peak compressive strength and the strain at failure decrease, when the cellular size increases. Furthermore, the SLM processed lattice 3 sample, which possesses a large cellular size, broke into small fragments after the compression test.
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Research context
OpenAlex topics: Additive Manufacturing Materials and Processes · Additive Manufacturing and 3D Printing Technologies · Cellular and Composite Structures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University 1 , Xi’an, Shaanxi 710072, People’s Republic of China
Key Laboratory of Metal High Performance Additive Manufacturing and Innovative Design, MIIT China, Northwestern Polytechnical University 2 , Xi’an, Shaanxi 710072, People’s Republic of China
University Bourgogne Franche-Comte, IRTES EA7274 3 , F-90100 Belfort, France
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