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发明公开
CN101569763A 一种生物医用β-钛合金材料及其制备方法 无效 - 驳回

一种生物医用β-钛合金材料及其制备方法
摘要：
本发明涉及一种低弹性模量生物医用β－钛合金材料。其制备方法，包括原料配制、原料熔炼、开坯及锻造等步骤。即将原料合金Nb、Zr、Sn、Ta、Mo、Ti按一定比例配制后经机械搅拌混合后，在液压机上压制成电极，之后在真空自耗电弧炉中熔炼，制得β－钛合金材料的铸锭；再取一定直径的铸锭，经真空炉加热后保温，在液压机或锻造设备上镦粗和拔长，反复进行2～3次，制得β－钛合金材料的锻坯；再将锻坯在真空炉中加热后保温，在液压机或锻造设备上拔长，即得弹性模量E为50～80GPa的生物医用β－钛合金材料。本发明的合金特征具有弹性模量低，抗拉强度、屈服强度、抗蚀性等综合性能优良，且其不含有对人体有毒元素。
摘要（英）：

The invention relates to a biomedical beta-titanium alloy material with low elastic modulus. The preparation method for the material comprises the steps of raw material preparation, raw material smelting, cogging, forging and the like, namely the method comprises the following steps: preparing a raw material alloy of Nb, Zr, Sn, Ta, Mo and Ti according to a certain proportion, mechanically stirring and mixing the alloy, then pressing the alloy on a hydraulic press to form electrodes, and later smelting the electrodes in a vacuum consumable electro-arc furnace to obtain cast ingots of the beta-titanium alloy material; taking out the cast ingots with certain diameter, heating the cast ingots in a vacuum furnace and then preserving the heat, upsetting and drawing out the heated cast ingots on the hydraulic press or a forging device, and repeating the step twice to thrice to obtain a forging stock of the beta-titanium alloy material; heating the forging stock in the vacuum furnace and then preserving the heat, drawing out the heated forging stock on the hydraulic press or the forging device to obtain the biomedical beta-titanium alloy material with the elastic modulus E of 50 to 80GPa. The alloy has the characteristic of low elastic modulus, has good combination properties such as tensile strength, yield strength, corrosion resistance and the like, and does not contain toxic elements to human body.

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