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Diffusion bonding of Ti-2.5Al-2.5Mo-2.5Zr and Co-Cr-Mo alloys

机译:Ti-2.5Al-2.5Mo-2.5Zr和Co-Cr-Mo合金的扩散结合

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摘要

A solid state diffusion bonding between two metallic biomaterials, Ti-2.5Al-2.5Mo-2.5Zr alloy and Co-Cr-Mo alloy (F75), has been investigated by using energy-dispersive spectrometer analysis, metal-lographic observation and bonding strength evaluation. The experiments indicate that bonded at 750 °C leads to insufficient atoms diffusion and weak bond. When bonded at 900 °C some intermetallics, CoTi_2, Co_2Ti, and Cr_2Ti, form in the diffusion zone, which significantly deteriorate the plasticity and lead to lower bonding strength. A high bonding strength can be achieved when bonding at 850 °C for 60 min.
机译:利用能量色散谱仪分析,金相观察和结合强度研究了两种金属生物材料Ti-2.5Al-2.5Mo-2.5Zr合金和Co-Cr-Mo合金(F75)之间的固态扩散结合。评价。实验表明,在750°C下键合会导致原子扩散不足和键合弱。当在900°C下结合时,在扩散区中会形成一些金属间化合物CoTi_2,Co_2Ti和Cr_2Ti,这会显着降低塑性,并导致结合强度降低。当在850°C下粘合60分钟时,可以获得很高的粘合强度。

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