Longitudinal Compression Behavior of Functionally Graded Ti-6Al-4V Meshes

被引:20
作者
Zhang, Shangzhou [1 ]
Li, Cong [1 ]
Hou, Wentao [2 ]
Zhao, Shuo [2 ]
Li, Shujun [2 ]
机构
[1] Yantai Univ, Sch Environm & Mat Engn, Yantai 264005, Peoples R China
[2] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
基金
中国国家自然科学基金;
关键词
Graded Ti-6Al-4V meshes; Electron beam melting; Reuss model; Compressive deformation; Edge effect; MECHANICAL-PROPERTIES; CELLULAR STRUCTURES; GRADIENT; DEFORMATION; POROSITY; METALS; SHAPE; FOAM;
D O I
10.1016/j.jmst.2016.02.008
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The compressive deformation behavior in the longitudinal direction of graded Ti-6Al-4V meshes fabricated by electron beam melting was investigated using experiments and finite element methods (FEM). The results indicate that the overall strain along the longitudinal direction is the sum of the net strain carried by each uniform mesh constituent and the deformation behavior fits the Reuss model well. The layer thickness and the sectional area have no effect on the elastic modulus, whereas the strength increases with the sectional area due to the edge effect of each uniform mesh constituent. By optimizing 3D graded/gradient design, meshes with balanced superior properties, such as high strength, energy absorption and low elastic modulus, can be fabricated by electron beam melting. Copyright (C) 2016, The editorial office of Journal of Materials Science & Technology. Published by Elsevier Limited.
引用
收藏
页码:1098 / 1104
页数:7
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