Synthesis of Ti–Sn–Nb alloy by powder metallurgy
Data(s) |
25/06/2008
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Resumo |
The microstructural evolution and characteristics of the Ti–16Sn–4Nb powder particles and bulk alloys sintered from the powders ball-milled for various periods of time were studied. Results indicated that ball milling to 8 h led to the development of a supersaturated hcp α-Ti and partial amorphous phase due to the solid solution of Sn and Nb into Ti lattice. The bulk Ti–16Sn–4Nb alloy made from the powders ball milled for a short time, up to 2 h, exhibited a primary α and a Widmanstätten structure consisting of interlaced secondary α and β. With an increase in ball milling time up to 10 h, the microstructure evolved into a fine β phase dispersed homogeneously within α phase matrix. The microhardness values of the bulk alloy in both α- and β-phases increased with the increasing of the ball milling time and reached a plateau value at 8 h and longer, i.e. 687 and 550 HV for α- and β-phases, respectively. Likewise, the microhardness of the α phases was always higher than that of the β phases in the bulk alloys made from the powders ball milled for the same milling time.<br /> |
Identificador | |
Idioma(s) |
eng |
Publicador |
Elsevier SA |
Relação |
http://dro.deakin.edu.au/eserv/DU:30017265/Hodgson-synthesisof-2008.pdf http://dx.doi.org/10.1016/j.msea.2007.10.010 |
Direitos |
2008, Elsevier |
Palavras-Chave | #mechanical alloying #titanium alloys #microstructure #powder metallurgy #metallic biomaterials |
Tipo |
Journal Article |