Selective laser melting of titanium alloy with 50 wt% tantalum: Microstructure and mechanical properties
2015; Elsevier BV; Volume: 660; Linguagem: Inglês
10.1016/j.jallcom.2015.11.141
ISSN1873-4669
AutoresSwee Leong Sing, Wai Yee Yeong, Florencia Edith Wiria,
Tópico(s)Additive Manufacturing and 3D Printing Technologies
ResumoIn this study, selective laser melting (SLM) was used to fabricate samples of titanium–tantalum (TiTa) alloy comprising 50 wt% of each element. Based on observation from scanning electron microscopy, as-fabricated samples comprised of randomly dispersed pure tantalum particles in a TiTa matrix. The microstructure exhibited equiaxed grains of β titanium and tantalum in random orientations, determined by combination of field emission scanning electron microscopy, electron back scatter diffraction and X-ray diffraction. The resulting samples have ultimate tensile strength of 924.64 ± 9.06 MPa and elastic modulus of 75.77 ± 4.04 GPa. The TiTa alloy produced can be a potential material for biomedical applications due to its high strength to modulus ratio, as compared to Ti6Al4V and commercially pure titanium.
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