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文章编号:1004-0609(2010)06-1195-08 生物医用Ti-Nb-(Ta)-Zr合金的微观结构与性能 马秀梅,孙 威,杨永建 (北京工业大学 固体微结构与性能研究所,北京 100124) 摘 要:采用显微硬度测试,X射线衍射分析和透射电子显微镜观察等方法,研究不同热处理后生物医用Ti-35Nb-5Ta-7Zr合金和Ti-35Nb-7Zr合金的显微硬度变化及微观组织特征,揭示Ta元素的添加对合金微观结构,时效析出序列及性能的影响.结果表明:Ti-35Nb-5Ta-7Zr合金比Ti-35Nb-7Zr合金具有更明显的时效强化效果;固溶处理(ST)后经300和600 ℃时效处理,Ti-35Nb-5Ta-7Zr合金的时效析出顺序可以描述为β+α″(ST)  ......
; Abstract: Electrochemical corrosion of Ti-35Nb-5Ta-7Zr alloy fabricated by arc melting and heat... behavior. The results of the study were compared with those obtained for Ti-6Al-4V commercial alloy. The result of the study supports feasibility of Ti-35Nb-5Ta-7Zr alloy for implant applications. Key......
生物医用β型Ti-Nb-Ta-Zr系合金的研究进展 孙威1,马秀梅1,杨永建1 (1.北京工业大学固体微结构与性能研究所,北京,100022) 摘要:生物医用β型TI-NbITa-zr系合金具有良好的生物相容性,抗蚀性,高的机械强度和疲劳强度,较低的弹性模量和密度及良好的耐磨性,是一种很有发展前途的外科植入用钛合金.重点介绍了该系中的两种重要合金Ti-35Nb-5Ta-7Zr(美国)和Ti-29Nb-13Ta-4.6Zr(日本)合金的研究现状及进展,并指出了该系合金今后的研究方向. 关键词:Ti-Nb-Ta-Zr; 合金; 生物医用合金; 研究进展; [全文内容正在添加中] ......
been devoted to the study of beta and near-beta titanium alloys, such as Ti-35Nb-5Ta-7Zr, Ti-13Nb-13Zr, Ti-16Nb-10Hf, Ti- 29Nb-13Ta-4.6Zr and Ti-15Mo-5Zr-3Al[8-9]. In these alloys, some have lower modulus (55 GPa) but the ultimate strength is lower than 600 MPa, such as Ti-35Nb-5Ta-7Zr, some have lower ductility and also have the toxicity element of aluminium, such as Ti-15Mo-5Zr-3Al. In addition......
and minimal cytotoxicity. Several metastable β Ti alloys based on the Ti-Nb system, such as Ti-13Nb-13Zr [5], Ti-35Nb-5Ta-7Zr [6] and Ti-29Nb-13Ta-4.6Zr [7], have been developed for biomedical applications......
更低弹性模量的第三代β型钛合金,如Ti-12Mo-6Zr-2Fe,Ti-14Nb-13Zr,Ti-35Nb-5Ta-7Zr和Ti-25Nb-3Zr-2Sn-3Mo等[2-4]. 用于替代人体组织或器官的金属材料植入人体时,材料表面最先与机体内的血液和组织液接触.植入数秒后,继水和无机盐离子吸附后,蛋白质会通过分子传递,吸附,重排,交换,解吸等步骤竞相吸附在材料表面,形成一层厚度为20~100 nm......
include Ti-12Mo-6Zr-2Fe [6], Ti-15Mo-3Nb-3O TTIMETAL 21SRx [7] and Ti-13Nb-13Zr [8], etc. More recently, Ti-29Nb-13Ta-4.6Zr, Ti-35Nb-5Ta-7Zr, Ti-24Nb-4Zr-7.9Sn and several other compositions have been......