|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Bulk Processing of Nanostructured Powders and Nanopowders by Consolidation
||Nanocrystalline Ti-Mg Alloys Prepared by Mechanical Alloying and Spark Plasma Sintering
||Yong Liu, Bin Liu, Hong Wu, Huiping Tang
|On-Site Speaker (Planned)
Nanocrystalline Ti-Mg alloys were prepared using combined techniques of mechanical alloying and spark plasma sintering. The alloys mainly consist of super saturations of Mg in Ti matrix. The effects of the milling parameters on the microstructures and morphologies of Ti-Mg powder were studied. It indicated that the processing controlling agent plays an importance role in preventing the cold welding of the powder. The as-milled powder is well dispersed and chemically homogenized. The Ti-Mg alloy powder was spark plasma sintered to high density, with a homogeneous mixtures of nanocrystalline Mg and Ti phases. The novel microstructures result in unconventional mechanical and biological properties. It has been shown that the PM Ti-Mg alloys have a much lower compression modulus (50 GPa) compared to other Ti alloys, but still remain a very high compressive strength (1800 MPa). The relationship between the microstructures of bulk materials and the mechanical properties were discussed.
||Planned: A print-only volume