Ultrafine-Grained Ti-13Nb-13Zr Alloy Produced by Severe Plastic Deformation

AUTOR(ES)

Pérez, Diego Alfonso Godoy, Jorge Junior, Alberto Moreira, Kiminami, Claudio Shyinti, Bolfarini, Claudemiro, Botta, Walter Jose

FONTE

Mat. Res.

DATA DE PUBLICAÇÃO

09/10/2017

RESUMO

Biomedical devices currently in use (prostheses, implants) have satisfactory performance in many cases. However, sometimes the body reacts to the device insertion and may lead to its rapid replacement. Some of these disadvantages can be solved by the use of titanium and its alloys, due to their excellent combination of corrosion resistance, wear resistance and biocompatibility compared to other competing biomaterials. This paper presents the possibility of obtaining near beta titanium alloy with ultrafine grains produced by severe plastic deformation. For this, the Ti-13Nb-13Zr alloy was processed by high-pressure torsion processing method. Samples were processed with different loads and number of turns. After characterization, it was observed that after applying three turns, a load of 1GPa produces more Ti-beta phase than a load of 6 GPa. However, as expected, the larger the load, the higher the refinement.

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