Effect Of Oxygen Content And Processing Method On Microstructure And Properties Of Ti-6Al-4V Titanium Alloy Wire
Effect of oxygen content and processing method on Microstructure and properties of Ti-6Al-4V titanium alloy wire
Titanium and titanium alloys have low elastic modulus, excellent corrosion resistance and biocompatibility, which are widely used in medical implant materials. Among them, in diameter diameter in the range of 1.0 ~ 2.5mm Ti-6Al-4V titanium alloy wire, mainly used in the medical Klinefelter needle material for replacing screws on trauma plate connected fixed, such materials must have high strength, tensile strength RM is equal to or larger than 1200Mpa, also has excellent plasticity, easy bending deformation, and the fracture of human body position to play the effective fixation. The mechanical properties of Ti-6Al-4V titanium alloy are influenced by the chemical composition and the processing method.
Using of different oxygen content of titanium alloy (Ti-6Al-4V) temperature controlled drawing of diameter 1.0mm, diameter 2.0mm, Phi 2.5mm3 kinds of different specifications of the wire material and oxygen content in the research of Ti-6Al-4V titanium alloy and control the influence of preparation method on the microstructure and mechanical properties of warm drawing. The results show that higher oxygen content, alloy alpha phase content is relatively more, 0.19% oxygen content, alpha phase content is 85% of the microstructure; diameter 8.0mm rolled blank equiaxed alpha phase size of 2 ~ 5 m, ca. 0.3 mu m of ultrafine grain drawing into diameter 1.0mm; with the increase of the oxygen content of alloy, drawing diameter thinning, wire strength improves plastic drop; 0.14% oxygen content of Ti-6Al-4V diameter 2.0mm wire tensile strength and ductility reached 1270mpa and 12%, the comprehensive mechanical properties of excellent.