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Mechanical Response of Triply Periodic Minimal Surface Structures Manufactured by Selective Laser Melting with Composite Materials

查看全文 作　　者：Shuaishuai [1]Wei;Bo [1]Song;Yuanjie [1]Zhang;Lei [1]Zhang;Yusheng [1]Shi 高影响力作者 机构地区：[1]State Key Laboratory of Materials Processing and Die&Mould Technology,School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China高影响力机构 出　　处：《Acta Metallurgica Sinica(English Letters)》索引2022年第35卷第3期,共14页高影响力期刊 基　　金：the Key-Area Research and Development Program of Guangdong Province(No.2020B090923001);the National Natural Science Foundation of China(Grant Nos.51922044,51775208);the Academic Frontier Youth Team(No.2018QYTD04)at Huazhong University of Science and Technology(HUST)。 摘　　要：It is of significance but remains a pivotal challenge to simultaneously enhance the strength and lightweight levels of porous structures.We provide an innovative strategy to improve the strength of porous structures with unchanged lightweight levels by applied composite materials.Selective laser melting(SLM)is convenient for integral forming of materials and structures.Hence,in this study,the research about the mechanical response of triply periodic minimal surfaces(TPMS)porous structures with 316 L and composites fabricated by SLM was conducted.The compression test and finite element method(FEM)were used to characterize mechanical properties.The composite structures exhibit enhanced elastic modulus,yield strength,unvaried lightweight level and refined grain microstructure,which are difficult to realize for porous structures made by pure 316 L materials.The elastic modulus,yield strength,plateau stress and energy absorption of composites were 3187.50,67.73,15.24 and 17.09 MJ/m^(3),respectively. 关 键 词：Triply periodic minimal surfaces Mechanical property Fe-based amorphous alloy High specific strength
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