选区激光熔化316L不锈钢梯度晶格结构的压缩性能

doi:10.19976/j.cnki.43-1448/TF.2025040

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Abstract Lattice structures are increasingly utilized in aerospace, automotive manufacturing, and biomedical fields due to their advantages of lightweight construction, excellent sound insulation, high specific strength, high specific stiffness, and superior vibration absorption properties. To investigate the relationship between gradient strategies and the mechanical response of gradient lattice structures, this study designed gradient lattice structures with different gradient strategies and fabricated corresponding specimens using selective laser melting technology. The compressive properties of these structures were systematically investigated through a combined approach of simulation and experimental validation. The results indicate that during compression, the nodes of the lattice cells serve as primary stress concentration locations. Uniform structures, unidirectional gradient structures, and bidirectional gradient structures exhibit distinct deformation behaviors. Gradient lattice structures exhibit higher elastic modulus, yield strength, compressive strength, and plateau stress compared to uniform structures. Furthermore, bidirectional gradient structures demonstrate superior mechanical properties over unidirectional gradient structures and superior energy absorption performance compared to both uniform and unidirectional gradient structures. This study provides technical support for predicting the compressive response of diverse gradient lattice structures.

Key words： selective laser melting gradient lattice structure gradient strategy mechanical property quasi-static compression

Received: 21 April 2025 Published: 27 November 2025

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	Articles by authors
	WANG Xiaokang
	WU Liguang
	YE Jianbo
	HU Yaowu
	LIU Hui
	CAI Gaoshen

Cite this article:

WANG Xiaokang,WU Liguang,YE Jianbo, et al. Compressive properties of selective laser melted 316L stainless steel gradient lattice structures[J]. Materials Science and Engineering of Powder Metallurgy, 2025, 30(5): 446-455.

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http://pmbjb.csu.edu.cn/EN/10.19976/j.cnki.43-1448/TF.2025040 OR http://pmbjb.csu.edu.cn/EN/Y2025/V30/I5/446

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