研究了不同合金添加元素(Mo,Sn,Zr,Nb)、加工以及热处理对近β型医用钛合金力学性能和显微组织的影响规律,讨论了保持医用钛合金强度、弹性模量和塑性优良匹配的影响因素和解决办法.研究发现:Ti-Nb-Zr-Mo-Sn合金中增加Zr,Mo,Sn元素含量使合金强化,而增加Mo,Nb元素含量和热加工率利于降低弹性模量;经过固溶处理后强度和弹性模量降低,经时效处理后合金产生弥散强化和细晶强化使强度和弹性模量增加;热轧态和固溶状态下产生应力诱发马氏体而导致较低的屈强比和允许应变,利于二次加工和实际应用.
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