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Influence of cell shape on mechanical properties of Ti-6Al-4V meshes fabricated by electron beam melting method
S. J. Li; Q. S. Xu; Z. Wang; W. T. Hou; Y. L. Hao; R. Yang; L. E. Murr
2014
Source PublicationActa Biomaterialia
ISSN1742-7061
Volume10Issue:10Pages:4537-4547
AbstractTi-6Al-4V reticulated meshes with different elements (cubic, G7 and rhombic dodecahedron) in Materialise software were fabricated by additive manufacturing using the electron beam melting (EBM) method, and the effects of cell shape on the mechanical properties of these samples were studied. The results showed that these cellular structures with porosities of 88-58% had compressive strength and elastic modulus in the range 10-300 MPa and 0.5-15 GPa, respectively. The compressive strength and deformation behavior of these meshes were determined by the coupling of the buckling and bending deformation of struts. Meshes that were dominated by buckling deformation showed relatively high collapse strength and were prone to exhibit brittle characteristics in their stress-strain curves. For meshes dominated by bending deformation, the elastic deformation corresponded well to the Gibson-Ashby model. By enhancing the effect of bending deformation, the stress-strain curve characteristics can change from brittle to ductile (the smooth plateau area). Therefore, Ti-6Al-4V cellular solids with high strength, low modulus and desirable deformation behavior could be fabricated through the cell shape design using the EBM technique. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
description.department[li, s. j. ; xu, q. s. ; wang, z. ; hou, w. t. ; hao, y. l. ; yang, r.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [murr, l. e.] univ texas el paso, dept met & mat engn, el paso, tx 79968 usa. ; hao, yl (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china. ; ylhao@imr.ac.cn
KeywordElectron Beam Melting Titanium Alloys Reticulated Mesh Compressive Deformation Behavior Cell Shape Effect Polyurethane Foams Elastic Properties Titanium Bone Behavior Arrays
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Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73280
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
S. J. Li,Q. S. Xu,Z. Wang,et al. Influence of cell shape on mechanical properties of Ti-6Al-4V meshes fabricated by electron beam melting method[J]. Acta Biomaterialia,2014,10(10):4537-4547.
APA S. J. Li.,Q. S. Xu.,Z. Wang.,W. T. Hou.,Y. L. Hao.,...&L. E. Murr.(2014).Influence of cell shape on mechanical properties of Ti-6Al-4V meshes fabricated by electron beam melting method.Acta Biomaterialia,10(10),4537-4547.
MLA S. J. Li,et al."Influence of cell shape on mechanical properties of Ti-6Al-4V meshes fabricated by electron beam melting method".Acta Biomaterialia 10.10(2014):4537-4547.
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