Mechanical modulation and bioactive surface modification of porous Ti-10Mo alloy for bone implants

被引：47
作者：
Gao, Zhifang
Li, Qunyin
He, Fang
Huang, Yuan
Wan, Yizao [1 ]
机构：
[1] Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China
来源：
MATERIALS & DESIGN | 2012年 / 42卷
基金：
中国国家自然科学基金;
关键词：
Non-ferrous metals and alloys; Mechanical properties; Surface modification; TI-MO ALLOYS; BIOMEDICAL APPLICATIONS; CORROSION-RESISTANCE; HEAT-TREATMENT; TITANIUM; ALKALI; LAYER; FABRICATION; ABILITY; METALS;
D O I：
10.1016/j.matdes.2012.05.041
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The objective of this work was to fabricate a suitable porous Ti-10Mo alloy as the human bone replacement implants. The porous Ti-10Mo alloy was fabricated by mechanical alloying and then consolidated by powder metallurgy technique. NH4HCO3 powder was used as space-holder. It was indicated that the mean pore size, porosity, compressive strength, and elastic modulus of porous Ti-10Mo alloy could be tailored by the amount of NH4HCO3, and then could be matched with those of human bones. Furthermore, porous Ti-10Mo alloy was treated by alkali heat treatment and soaked in the 1.5 times simulated body fluid (1.5SBF). It was observed that the surface and the inside pore wall of porous Ti-10Mo alloy with 25 wt.% NH4HCO3 covered with the apatite layer after soaked in 1.5SBF for 28 days. These phenomena indicated that the surface modified porous Ti-10Mo alloy exhibited a high potential for bone-bonding, which was expected to be used as bone tissue implant. (c) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：13 / 20
页数：8
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