非均质显微组织对Ti-15Zr合金阳极氧化行为与生物相容性的影响  

Influence of heterogeneous microstructures on anodization behavior and biocompatibility of Ti−15Zr alloy

作　　者：汤菡纯 赵大鹏 万常俊 李小松 姬晓伟 唐金成 曹远奎[1] 刘咏[1] Han-chun TANG;Da-peng ZHAO;Chang-jun WAN;Xiao-song LI;Xiao-wei JI;Jin-cheng TANG;Yuan-kui CAO;Yong LIU(State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China;College of Biology,Hunan University,Changsha 410082,China;Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen 518055,China)

机构地区：[1]中南大学粉末冶金国家重点实验室,长沙410083 [2]湖南大学生物学院,长沙410082 [3]南方科技大学材料科学与工程系,深圳518055

出　　处：《Transactions of Nonferrous Metals Society of China》2023年第7期2076-2089,共14页中国有色金属学报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(No.52171114);the Innovation-oriented Advanced Technology and Industrial Technology Program Project of Hunan Province,China(No.2020SK2017)。

摘　　要：研究非均质显微组织对钛合金阳极氧化行为与生物相容性的影响。采用粉末冶金及后续热轧和热处理方法制备非均质Ti-15Zr合金,并采用电化学阳极氧化法获得纳米管阵列表面。结果表明,阳极氧化非均质Ti-15Zr上形成由纳米管团簇和显微裂纹构成的微纳结构表面,这种结构的形成与条纹状的(0001)取向晶粒以及Zr的非均质分布有关。与阳极氧化的电弧熔炼Ti-15Zr对照组相比,阳极氧化非均质Ti-15Zr具有与其相当的超亲水性,且蛋白吸附与细胞增殖效果更好,这主要是由于后者具有多尺度结构表面。The influence of heterogeneous microstructures on the anodization behavior and biocompatibility of Ti-based alloys was investigated.A heterogeneous Ti-15Zr alloy was fabricated by powder metallurgy,followed by hot rolling and heat treatments.Electrochemical anodization was then applied to obtaining a nanotube-arrayed surface.The results show that the surface of the anodized heterogeneous Ti-15Zr alloy consists of nano-sized tube structure as well as micron-scaled tubular clusters and microcracks.The formation of such a surface should be attributed to the(0001)-oriented striped grains and the heterogeneous Zr distribution.Compared with the anodized arc-melted Ti-15Zr control group,the anodized heterogeneous Ti-15Zr exhibits comparable super-hydrophilicity,better protein adsorption,and improved cell proliferation,mainly due to the hierarchical surface structures of the latter.

关 键 词：TI-ZR合金 电化学阳极氧化 成分非均匀性 择优取向 生物相容性 

分 类 号：R318.08[医药卫生—生物医学工程] TG174.4[医药卫生—基础医学]