Microstructures and Mechanical Properties of Ti-6Al-7Nb Processed by High-pressure Torsion

High-pressure torsion 0205 materials engineering Mechanical properties 02 engineering and technology Titanium alloy Engineering(all)
DOI: 10.1016/j.proeng.2014.10.184 Publication Date: 2014-10-15T17:53:17Z
ABSTRACT
Abstract Ti-6Al-7Nb was deformed by high-pressure torsion to improve the mechanical properties of alloy. conducted at room temperature under pressures 2 and 6 GPa for disk-shaped specimens. Microstructure characterized transmission electron microscopy (TEM) X-ray diffraction analysis (XRD). Mechanical were evaluated tensile test Vickers microhardness measurement. The grain size refined about 100 nm after processing through 5 revolutions. Hardness increased with straining values higher than those 2 GPa. Tensile strength all conditions that before processing. It found microstructure improved
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