Mechanical properties of a Ti6Al4V porous structure produced by selective laser melting |
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| Affiliation: | 1. Department of Mechanical Engineering, University of Las Palmas de Gran Canaria, Spain;2. Department of Biomedical Engineering, Instituto Tecnológico de Canarias, Spain;1. Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China;2. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;3. School of Mechanical and Chemical Engineering, The University of Western Australia, Crawley, WA 6009, Australia;4. Department of Metallurgical and Materials Engineering, The University of Texas at EI Paso, EI Paso, TX 79968, United States |
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| Abstract: | This paper designs one octahedral Ti6Al4V porous structure and then establishes a simplified model. The Ti6Al4V porous structure is manufactured by selective laser melting. Its experimental and theoretical fracture loads are obtained through theoretical calculation and compression test respectively. The result demonstrates that there is an exponential relationship between the experimental fracture load and the porosity of the porous structure. With an average relative error of 5.86%, the deviation between experimental and theoretical fracture load is small, which indicates that the predication accuracy is comparatively high. So the fracture load calculation theory is valuable in practical applications. Finally, the fracture analysis indicates that fractures of units and porous structures are brittle fractures, which belong to cleavage fracture. |
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