High Strength and Ductility in Ball-Milled Titanium Powders Consolidated by High-Pressure Torsion
Pure Ti powders were subjected to ball milling and subsequently high-pressure torsion (HPT) for consolidation. It is found that a fully dense (99.9%) disc with ultrafine grained structure (~50-300 nm) was produced. The strength and ductility were well comparable to those of ball-milled Ti-6%Al-4%V powders after hot roll sintering.
Jian-Feng Nie and Allan Morton
K. Edalati et al., "High Strength and Ductility in Ball-Milled Titanium Powders Consolidated by High-Pressure Torsion", Materials Science Forum, Vols. 654-656, pp. 1239-1242, 2010