|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Ultrafine Grained Materials IX
||Microstructural Evolution and Mechanical Properties of a Titanium Alloy Processed by High-pressure Torsion
||Shima Sabbaghianrad, Terence G. Langdon
|On-Site Speaker (Planned)
A novel β-type Ti-29Nb-13Ta-4.6Zr alloy was processed by high-pressure torsion (HPT) through total numbers of 10 turns. The alloy with an initial average grain size of ~27 μm was processed by HPT at room temperature under a pressure of 6.0 GPa. The Vickers microhardness test of the TNTZ samples shows an increase in the microhardness values from Hv ≈ 210 in the received sample to Hv ≈ 290 at the peripheral region of the sample processed by HPT through 10 turns. The Vickers microhardness value is smaller in the center of all disks processed by HPT. It is demonstrated that the results obtained from mechanical testing and microstructural analysis are consistent with the hardness measurements.