材料科学
多孔性
制作
选择性激光熔化
抗压强度
复合材料
钛合金
钛
微观结构
冶金
合金
医学
病理
替代医学
作者
Sahil Dhiman,Malkeet Singh,Sarabjeet Singh Sidhu,Marjan Bahraminasab,Danil Yurievich Pimenov,Tadeusz Mikołajczyk
出处
期刊:Materials
[MDPI AG]
日期:2021-07-10
卷期号:14 (14): 3866-3866
被引量:15
摘要
Porous Lattice Structure (PLS) scaffolds have shown potential applications in the biomedical domain. These implants’ structural designs can attain compatibility mechanobiologically, thereby avoiding challenges related to the stress shielding effect. Different unit cell structures have been explored with limited work on the fabrication and characterization of titanium-based PLS with cubic unit cell structures. Hence, in the present paper, Ti6Al4V (Ti64) cubic PLS scaffolds were analysed by finite element (FE) analysis and fabricated using selective laser melting (SLM) technique. PLS of the rectangular shape of width 10 mm and height 15 mm (ISO: 13314) with an average pore size of 600–1000 μm and structure porosity percentage of 40–70 were obtained. It has been found that the maximum ultimate compressive strength was found to be 119 MPa of PLS with a pore size of 600 μm and an overall relative density (RD) of 57%. Additionally, the structure’s failure begins from the micro-porosity formed during the fabrication process due to the improper melting along a plane inclined at 45 degree.
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