Effect of sintering pressure on microstructure and mechanical properties of hot-pressed Ti6Al4V-ZrO2 materials
作者： S Madeira , AMP Pinto , LC Rodrigues , O Carvalho , G Miranda
DOI: 10.1016/J.MATDES.2017.02.038
关键词: Metallurgy 、 Cubic zirconia 、 Sintering 、 Materials science 、 Diffusion 、 Titanium alloy 、 Inert 、 Microstructure 、 Nanoindentation 、 Hot pressing 、 Composite material
摘要: Abstract The development of new design approaches for biomedical applications using conventional and well accepted bio inert materials is an actual challenge. This study proposes a bilayered approach obtained by hot pressing concerned with the influence sintering pressure on interface reaction between titanium alloy (Ti6Al4V) zirconia (ZrO 2 ), density mechanical properties Ti6Al4V-ZrO . For this purpose, different pressures were studied (P = 5, 20 100 MPa). Bilayered produced process, at T = 1175 °C. Microstructural characterization showed that Ti6Al4V reacts ZrO (for P ≥ 20 MPa) strongly dependent pressure. Additionally, oxygen-deficient 2 − x black layer was specimens P = 20 100 MPa as result decreased O/Zr ratio due to Ti diffusion into side. Young's modulus hardness evaluated nanoindentation test. results these are influenced pressure, increasing increase highest improvement higher
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